Max lift stock 460 heads.

Max lift stock 460 heads Jan 7, 2015 · max lift on stock head without machining. These heads are fully assembled to work with a solid lifter. Some knuckle heads are saying 0. 11 gears, 31. Feb 1, 2017 · The LT1(#12551705) cams,however,are pretty plentiful used & can be bought really cheap. The flow should rise very quickly. 10s, hydroboost/4-disc brakes, ram-assist/heim joint steering, Cage long radius arms, custom traction bars, 4" lift, 35" mud tires Aug 31, 2016 · Intake Duration at 050 inch Lift: 221 Exhaust Duration at 050 inch Lift: 225 Duration at 050 inch Lift: 221 int. My daily, (93' 350 TBI) is going to be running . All have an improved "Cobra Jet" intake port which is capable of peak flow in the 410 cfm range. 460 - . 245/1. The lower the lift at which that number is reached, the better the port design. Trick Flow’s potent PowerPort® A460 340 cylinder heads for Ford 429/460 are ideal for use in drag racing, monster trucks, tractor pulling, and other ultra high power, large cubic inch engine combinations. 0725-inch maximum recommended lift and max rpm of 6,500-6,700. I generally don't like giving cam recommendations on the H. 271 and you get the Max lift you can run with a spring. BBF Head Heirarchy from best to worst 1. 060 inches clearance needs to be maintained between the retainer and seal (0. Around 0. Mar 28, 2009 · i have a set of procomp fully port cnc heads (pc3058c) on my 545 stroker and love them. and the dooer head flow up to ~370 int. 5/460) - Porting D3VE A2A Heads - Hey guys, im putting together a 73 429 to drop in a truck and am contemplating doing a light port job on the heads. 00 pair complete cylinder heads for hydraulic roller with bee hive springs $2695. 6 FMS rockers - mild porting of the stock intake -whatever cam works with the stock valve springs Thanks. Oct 3, 2011 · By the time the cam hits its stride the stock exhaust ports will kill higher rpm HP. 850 lift. D Sep 22, 2010 · cams break down like that from improper break-in usually either too high spring pressure (if you are going dual spring take out the inners for break-in) or lack of zinc in modern oils (they sell zddp additive for break-in) or they dont do the rev guidelines for break-in (bring it immediately to 2000rpm and bounce it from 2000-2500rpm for 20-30 min no idling/driving) Feb 10, 2014 · Screw in studs for rocker arm shaft #6009. Interestingly these 125 cfm Exh numbers produced by these 302 cid are the same as what the non hi-po late model 460 cid heads flow so it's no wonder why motor homes with these motors can't get out of there own way, lol! Feb 12, 2017 · SCJ heads, lunati voodoo rockersI started to play with push rod length started at 9. I would imagine the pistons are probably 20 in the hole and I will be using standard head gaskets. 44 bore, what max size valves, and what max valve lift you can use on a 4. Big Block Ford 429-460 Cylinder Heads with CNC ported intake & exhaust runners. We turned the exhausts to 1. 5cc valve relief flat tops, nominal head gasget. 5:1. Jan 6, 2007 · Dont forget that max lift also has a very important componant to that mix which is piston to valve clearance. Can I use it with a good set of valve springs? thank you very much Oct 3, 2011 · By the time the cam hits its stride the stock exhaust ports will kill higher rpm HP. Jan 19, 2006 · The amount of cam your engine can take is more determined by the duration of the cam than the lift, and for the most part most cams will clear the stock pistons just fine, most people notch their pistons to accomodate larger than stock valve sizes, what year is the engine and what cam are you looking at installing, no matter what people say will clear you should check for ptv clearance anyways. Sep 5, 2013 · I think you are hung up on trick flow stating the supplied springs on those heads are good up to . New they are about $600, but you need a Vortec style manifold to do it right. That's where we are at now. 539/. 00 Dec 19, 2009 · A set of stock Vortec heads will make far more power than what came on a 400, or damn near any stock production head. A. 800 lift $2695. 545" max Allowing for . Lem, makes a good point, there are better heads out there such as the A460 heads. If i decide to go to 1. What are the stock specs for a 1973-1979 & 1980 and later 460 ford truck engine. This may be more cam than you want to run though. I did the reverse small chamber heads and reverse dome pistons. 00 pair kaase-p51 special built guide plates $45. 150 zero lash and had . 625 the same as the SCJ, P-51,A-429, TFS Street, & Blue Thunder. Using stock rocker shaft (for now). My heads are some 64cc iron 492s fully ported by Mondello Porting services and are very nice indeed, I have some beehive springs that I'd like to use as I have them already, same goes for some 1. Alaska442. But doesn't show spring pressure at installed height. 500 lift, I have heard of caams with over . 5:1 rockers and about 0. I am running one of UDHarolds cams with . , with . Thread starter 69 GTX; Start date Jan 7, 2015; max safe lift at the valve would be . 44 bore. Everything else I have built is been under . 800 lift, and you'll spend a good chunk to get it there. 481". 480 is the max lift you can squeze by without having to machine em down. 050 with . Even with the Doves the C/R is marginal for that cam. /279 exh. 550" OD Solid Roller Dual Valve Spring, 220 lbs on seat, . Then I wouldn't go over . I got mine back in 1992. Mar 13, 2009 · So many things determine valve-to-piston clearance issues, such as the pistons, the heads, cam lift, cam duration, lobe separation angle, valve head diameter, etc. Mike is right on this, your max lift with those heads is in the 450 - 460 range. 445 lift in fact. 550" unless they have the exhaust bump in them. I would like to install a 218/228 (at 0. Trick Flow GenX® Cylinder Heads, GM LT1, 195cc Intake, Chromoly Retainers, Max Lift . 490" at the valve with factory rockers. 552 lift. 00 arp pro series rocker studs for p-51 cylinder heads $65. 800″ lift. 2-1. The bottom end is a bone stock 87 460. Yes a CJ can flow 400 cfm, but at . 487 int. 600 lift comp springs, retainers and Mar 25, 2006 · I ran a . over stock. 425 valve lift) or Summit K1103 Cam (Duration 272/282, Lift . Oct 16, 2007 · It has Dove A block and Dove heads. 0. While either of these would work well & probably be a cheaper option for you,you will be PAC Racing Spring 1. So 1. 600″ valve lift when the air flow is high. 710/ Stock Jan 24, 2009 · Big Block V8 - 385 Series (6. Or . 539 ex lift with 1. The plans for this is: -mild port work on the heads -1. 98 intake port. They have a longer outside row of studs. I saw the Summit Vortec heads (part# SUM-151124) show a max lift of . I was told that just over . Very nice off-idle to 5000 rpm set up that worked well with factory rocker arms, heads, and bottom end. 1-Piece 2. 481" Vortec limit. IF an exhaust header bolt hole breaks through to the exhaust port, don't worry about it. 410" lift with 1. actually, you can also use a dial indicator and open the valve to measure the max lift it can Serious horsepower for your Big Block Ford engine, heads sold individually and are fully assembled. 550 no problem. 005 deck and maybe . Oct 4, 2018 · You won't do that with these SR-71 heads. Dec 5, 2016 · Designed for 1968-87 429/460 Fords, these new Performer RPM heads are ideal for high-performance street, drag racing and marine applications. 0/302, 5. C&C C-441 Hemi 2. 2ish tires, hooker super comps, 3" exhaust, An original Torker on it currently. The intakes wouldn't swap since they were 2. 460) will I have to do this mod to the vortec heads? :willy: Is this something that an average Oct 11, 2007 · May God's Grace Bless You '78 BRONCO: 508" stroker, TFS heads, Dominator MPFI & DIS, cold air induction, dual 3" exhaust/Magnaflow mufflers, 100HP progressive dry direct-port NOS, A/C, Lentech Strip Terminator wide-ratio AOD, 3:1 Atlas II, modified Dana 44/60-lockers-4. . 420. Then run around an . AFR 300 Bullitt Heads. 500 lift max. How much lift? - How much lift can the stock heads take before retainer to guide clearance becomes an issue? Nov 23, 2010 · We are going to require stock lift +/- and pull a certain amount of vaccum maybe 15"-17". 250 it went up again to . 540 lift. 52 roller rockers. That is significantly higher than stock (which most sources say is . 060 = 0. One pump of the pedal and it starts up instantly. 76 & prroblem solved. 460 lift. Better to buy C8, C9, DO (’68-’71) heads or keep the stock heads and buy flat top pistons? B) The cam that I have was originally bought for an engine that would cruise at 2600 rpm minimum. 550 lift. Exhaust Valve Lift with Factory Rocker Arm Ratio: 0. Feb 14, 2016 · On a stock iron head GTO 400CI, going over . Lift is one thing but duration and overlap plays a big part on valve clearence. The engine is going into a daily driver and not a race Mar 6, 2009 · New Edelbrock Performer RPM 429/460 Cylinder Heads. Sep 18, 2017 · I've used the 272-. In a best case scenario you will break a timing chain and bend the valves that are still open as the piston cycles up and down in the cylinder. 720 on the gauge and had my friend put a . 1/370, 7. I have been porting a set of doves to increase the compression, and have installed 2. 975 • Flow 460 Int 325 Exhaust @ 800 Lift We have heads assembled and ready to ship Apr 19, 2012 · Maximum Valve Lifts With Stock Heads Courtesy of Randy Malik Unmachined D3's with production length valves and stock retainers will allow about . Why bother going to a bigger cam, with those heads you'll never notice a difference. /225 exh. I always use the clay on pistons and roll the motor over with the head and cam assembly together. D x 1. 700-inch and . Jun 26, 2009 · When raising the lift on the 429-460 heads they sometimes run out of room and the retainers will smack the top of the valve guide !! >>>>. because of all the conflicting opinions, but you might consider the Comp 34-235-4 for a mild engine. I swapped the exhaust valves out of my iron heads. I think in general most of the stock springs will take up to appox. May 9, 2006 · 335 Series- 5. 700 lift, the CJ can beat it by 13 cfm, but it still beats the D0VE heads at that lift. Dec 28, 2004 · C3 Tech/Performance - Limits of Vortec Heads - I found that you need to mill the valve spring area on the vortec heads to except a higher lift cam. D x . 582). There is a lot more to a cam than just the lift. 19 or 2. 469 max lift which I guess is why they didn't need and retainer to Guide clearancing. They have have a hydraulic flat tappet only rule. Jul 2, 2008 · For a first post, this is kind of a generic question, but something I need to know, what kind of lift can be safely had with pretty much stock heads? The engine I'm running is out of a '75 town car. if i were to do a gasket match Oct 16, 2012 · Hi anyone know what is the maximum cam lift for a stock chevy 350 cylinder head? My 350 is from a camaro 76. Notching doesn't work with C-Heads because the valves have no side cant. motor will never be over 5500, also is the stock valves safe at this rpm , the heads are like new , only 22000 miles on the them Oct 8, 2004 · Here’s what happened when I ran a Competition Cams Comp Magnum 270H (. valve lift of 0. 500 inch lift (flow stalled above . nuts ) Pistons: Any 429/460 application Rocker arms: 1. complete cylinder heads for flat tappet cam $2595. In a 1984 460 with D3VE heads, the OEM stamped steel rocker arm valve train can handle perhaps 0. 750-inch of lift, but for testing purposes we decided to go up to . But I was wondering what the folks here think? For what I want to do I probably only want to go to about . We stock cylinder heads from World • Pac #1258 Springs Max Lift . I am building a big block 454 and have a few questions about the valve train. 19's. 2. bolts ); ARP # 155-4203 ( studs w/12pt. The motor is a 466 with slightly ported DOOE-R heads. Trick Flow PowerPort® cylinder heads for Ford 429/460 engines deliver significant horsepower and torque gains over similar-style cylinder heads. 560 Nov 3, 2018 · Copied post 611ci sr-71 heads So long post worth the read! Charlie Evans Presley Rae Wilkerson, and Jon Kaase dyno tested my intake manifold today against an Afr,Victor, and a Mafia. Can gm 882 heads handle the lift? and will i need new pushrods? thanks in advance for your advice Jun 23, 2010 · From the info i've found on the site about these heads the dove heads flow up to ~350 int. M. 76 valves. Intake valves have 5/16 in. 010" is what will fit. the '915 heads should be limited to around . 600 lift according to tech) *stock rocker arms (might change out) and stock positive stop studs * comp cams 268h with . Feb 18, 2009 · Im helping a guy build a motor for the local street stock class. ratio using new pistons. 5-1 compression. 6/400, 351 Cleveland - Max lift with stock valve springs? - Hi I'm just wondering what the max lift is that you can use with the stock valve springs. 450-inch lift. 65:1 rockers add about 4 degrees of duration. May 4, 2003 · FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428) - Stock heads. 26x1. Feb 11, 2012 · The Ramjet 350 has stock vortec heads, roller cam, 1. Aug 20, 2004 · The 460 block and the heads have not been decked, the pistons are KB hyper with 2. 656" exhaust. 506" min / . Did run a dual plane and a Torker II. 083" intake and 1. stems. 650" valve lift and well ported heads, (without totally ruining the exceptional mid lift flows), will flow better up to just past . 562" intake and . The heads can handle more lift than that but you would need to set up the springs/valve lengths accordingly. 520" lift before they hit the retainers. 400 lift for intake or exhaust. 500". 050, . 530" lift before seal to retainer contact unless the guides are topped or the spring installed height is increased. 460 at the valve that is. Aug 14, 2009 · Those heads are the worst flowing head GM ever made. Jul 11, 2002 · Stage 1: Assembled with stainless steel valves, complete valve job, Manley chrome moly retainers and locks, Viton valve stem seals and Isky double valve springs for up to . Feb 6, 2008 · A429 Aluminum Motorsports Cobra Jet heads INTK Lift- stock/ Ported----- EXH Lift- stock/ Ported A-429's as delivered were 322/191 max. 588" exh lift at the valves. Max flow rates are on the order of 325 to 330 intake and 200+ exhaust. Take your installed height of 1. They are available with springs for hydraulic roller or solid roller applications. 5/460) - max cam lift on stock 78 f-150 460 - I cannot find the specification anywhere. I'd call a dealer that can hook you up with a custom cam to suit your needs. The Bullitt 300 cc heads are AFR’s largest and best flowing BBF heads. Dec 25, 2007 · Help me to understand why a D0VE-C cylinder head that flow, lets say 350 cfm at max lift can only support 700 horsepower while I personally know a small block fords wearing cnc ported victor jr heads that flow 329 cfm and make over 700 horsepower. and 220 ex. Jan 1, 2004 · On the flow bench the iron heads were good for 241 cfm at . of torque at 4500 rpm with the Performer RPM Total Power Package. 00 pair complete cylinder heads for roller cam with up to . I also had a nice set of double valve springs suitable for the cam I was running. 050 . 520 Mar 29, 2014 · Auggie, I just got done building a Eddy RPM headed 472 and I done the same thing, I set up the spring on my height tool on the bench, I put the spring and retainer into it and went to . Feb 28, 2015 · Add the valve diameters together, (intake and exhaust), and a maximum of 4. 470" lift) on a set of stock Vortec heads. 655 at 9. Stock Buick 350 heads don't flow past . 705" I. 560" lift, by using the single springs recommended for the 280H cam. Stock 906 heads with the 2. 586". com. They only have a max. With the P-51 head, some of the intake ports will be smooth and quiet all the way to . 550" lift max, assuming you have the proper valve train components to go with said Jul 12, 2017 · FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428) - How much lift with stock rockers? - How high a lift can you go with stock non-adjustable rockers? Local guy swears you can go to . Large 2. Also what do you think of these possible rules. Oct 10, 2004 · Hey everyone, quick question. 700 lift for circle track, I wonder with low enough comp on stock 302 what the max valve lift you can go . 540 lift with factory rockers though. If there flat tops with D3s compression is going to be over 10 to 1. The biggest issue in my opinion is the maximum lift these heads can handle when stock. Feb 13, 2008 · Randy answered about the D3s: "Unmachined D3's with production length valves and stock retainers will allow about . 600 in. 600 TFS-30410010 - TREperformance. Wouldn't go much bigger than . 456" for head #1 , and . With the small bore of the 305 you'll run out of flow early. Highlights include an extremely efficient chamber design for more complete combustion and exhaust ports raised . 1. 520 max lift. The 1. 450 lift on a 108 lsa which would give you a little better low and mid range in my opinion. 500 inch lift. 300 looking it over the push rod was hitting the rocker at the fulcrum and pushing the push rod to the side of the cup I suspect causing the increase in lift . 238. 455 a bunch and plan on sticking one in the engine i'm working on now, but it's more of a stock replacement/smooth idle cam. 450/. Head gasket: Fel Pro # 1018 Intake gasket: Fel Pro # 1230 Exhaust gasket: Fel Pro # 1420 Head bolts/studs: ARP # 155-3603 ( 12pt. a howards #720141-12 may work well, but the best I've run in a near stock engine is an engle Nov 22, 2007 · Hello everyone. They should have a 2. 475 inch of valve lift, but this is a very tight number. 8/351M, 6. I bought 1 over at 3rdgen,org for $35 shipped. The Racers Edge Performance - Trickflow GenX Cylinder Heads offers new performance cylinder heads at cheap discount wholesale prices. 477. 700 lift springs so this problem never occurred before. 480 lift , unless the guides are trimmed. 15. And you would still want to look closely for any rocker to stud binding (if using stock rockers). 040 head gasket. That was very impressive and it was also 8 or 9 years ago when I lived in Tulsa. Trick Flow PowerPort 290 cylinder heads are designed for high performance Ford 429/460 street and street/strip applications, providing significant horsepower and torque gains over similar-style cylinder heads. Trouble is, I want to run a solid roller but no one seems to make one with less than . 500" and require a different seal. I have a 514 max lift wondering if the stock springs will work Jan 9, 2009 · specs are - 1970 429 bored 30 over, stock crank and piston rods. 460" lift is about max for the stock valve springs but they would be pretty tired by now. 710" maximum lift, - 260* max recommended duration, Max RPM 7200-7400 AFR #8000 10° Steel Retainers 1. I have a membership to Scotty J's site so it looks like that part of the mission is done. Charlie Evans Gary Blair wrote: The Edelbrock deck is . Dec 26, 2010 · With COMP Cams 252H (with 0. Nov 27, 2011 · I am building a budget motor. I know stock D0VE-C heads can make well over 500HP. The details on how to increase the retainer-to-seal clearance can be found in the article and comments here: [READ: Ask Away! with Jeff Smith: Blueprint for a Budget Small Block Chevy Build] Jun 29, 2008 · The max lift was 0. 0/429, 7. 750" Max Lift Fits All OEM Bolt Pattern Manifolds, Uses Full Size Spark Plug AGF-22 Uses Felpro Gasket 1018 or 1028 Head Bolts Take 65 Ft. Will be a track/weekend warrior cruiser. Be careful with Long Duration, High Lift roller cams as "valve to valve" can become an issue when maximum sized valves are used. I was thinking that it was . Lift Intake Exhaust . Jun 16, 2005 · Max lift with stock heads Pontiac - Street. It runs great but has no Sep 5, 2016 · On hydraulic roller applications, you’ll get PAC Racing PN 1940 1. You only dig deeper into the cylinder wall with increased lift. 451 lift & 202/207 @ . 60s using a solid flat tappet cam and Port-O-Sonic intake. It's running a cam with 0. Serious horsepower for your Big Block Ford engine, heads sold individually and are fully assembled. and even if the factory guides are good, the extra spring pressure will wipe them out quickly and the new guides will be . Unmachined D3's with production length valves and stock retainers will allow about . 65:1 rockers. On the other two sets, one was set up for a CC 268H with . This allows the valve to stay open for the maximum amount of time where the lift needs to be, making sure the cam lasts longer than 50,000 miles. Requires an A460 specific intake manifold and custom-built header. My mild single pattern cam sports . 465), stock unmodified GM Vortec Heads, Edelbrock Performer EPS Vortec intake manifold and headers, Do you think I could achieve my goal of minimum 300 hp? PowerPort® cylinder heads for Ford 429/460 engines deliver significant horsepower and torque gains over similar-style cylinder heads. 0056" removal from the deck surface per cc. 19 1. 509" max Head #2: . AFR designed the 300cc heads for a maximum . Mar 31, 2008 · And in regards to the unported TFS street heads vs. Spring Cups, 10 degree retainers & locks, 7/16" studs & guide plates. You have . 540 before the retainers hit the guides. I got a roller cam with . Both of these heads are 1997 castings, and I'm pretty sure they're off the same engine. My Builder selected the M-6250-A443 camshaft and it has . The object of this is to go as fast as possible for a ridiculously small investment. Jul 18, 2008 · I'd deck the block and the heads. motor until I finish school. This is a nice street combo with low compression engines. If the d3s are milled and the block milled compression might be in the mid to high 10s compression wise. 100 65. 5 rockers. Find "The Mad Porter". Stock Vortec heads are limited to 0. 7 rockers I bolted on to my stock E7 heads with the stock springs? Mach 460. It starts up great now even after sitting for a week at a time. 321(1. com Jan 4, 2024 · Years ago I ran a set of C9VE heads with a Crane CCH-304 Commander kit which had nearly identical lift specs,I had the guides cut for positive seals and the spring seats cut for the springs and we checked the guide height for retainer clearance for that lift but don't remember if we had to cut them down, I would check to make sure, it could make a good day shitty. i ran a 270 280 @ . Jan 15, 2012 · That Lunati cam is about the same specs as the old comp 268HE cam and will work fine. Later I ran a 296 adv duration cam with . 74 valves will usually flow 210-220 cfm at . Jan 27, 2021 · In stock form these heads flow 160 on the intakes and 125 out the exh. The Blue Thunder 460 cylinder head is available in six configurations. 900-inch lift. 470" lift won't really produce more power. Because this head was originally designed as a production piece, the stock Vortec’s max valve lift potential is definitely limited. 450-. Reading many 305 builds lately and the max they used in 305s is about 470 -480 but that was with aftermarket aluminum heads equal/greater than 230 at max lift. @50 and . 6 rockers i know the valve lift will be about . 484" lift and 206/212 @ . For that kind of compression, I am a strong supported of the bigger and stronger 18 bolt heads such as the TFS A-460, the FRPP C-460, or the Pro-Filer and Thor heads. right now i have comp magnum 1. That was pushing the max lift you could get and I remember feeling bad about not putting aftermarket springs in because the extra lift and wilder cam profile made it valve float at 5500 rpm as opposed to the factory cam which floated at 6200. 429/460 Ford Cylinder Heads. 499 in. Its a 75cc chamber, but if they were worked on they may be 80cc's now. the summit 6401 is a good cam for a near stock engine, but smooth idle. HFD Jun 12, 2007 · Manganese Bronze Valve Guides, Dual Valve Springs Rated at . Anyway, I did have a valve clipping issue during overlap. 460 Those 882 heads are just a 76CC stock truck head that were never built to use in performance applications ands they have no harden seats either. Standard big block Chevy exhaust flange bolt pattern. 6:1 rockers which puts the max valve lift to . There have been some Jul 27, 2008 · I run the early A429 heads. 050" safety margin, and using the minimum clearance for each head, max safe valve lift on the two heads would be . 600 lift but maybe not if the heads & block are decked,if using high comp/high domed pistons,and a long duartion large overlap high perf cam so keep that in mind too. 5/460) - Max lift - Hey guy's does anyone know what a stock D3VE Valve Spring will start to bind up at meaning lift, or what will they take as far as lift from an after market camshaft,. " What about max lift on the cast iron non-adjustable rail rocker arms used on the C8-DOVE and the adjustable stamped steel rocker arms used on the CJ and PI Jan 12, 2015 · They did this by increasing the ramp speed as the valve opens, and slowing it as it closed. I understand their limitations in terms of valve lift in stock configuration. if i could ever get the car to hook up all the time i'd have a screamer! Oct 13, 2006 · As 327NUT said the Vortecs are the way to go but to run that cam with a new set of Vortecs re quire then to be reworked as I believe there is a max lift of . Apr 6, 2018 · The original answer was related to modifying the heads to accept more valve lift. 560" lift cam (1. Serious horsepower for your Big Block Ford engine, heads sold individually. 460 is the max valve lift for stock Vortec heads. 520. 460" lift with 1. 5 roller rockers. 021-. 500" lift the head will produce a better power curve than if the valve must be opened to . Stock OEM valve sizes are 2. The heads being used are ported d3ve with a set of . I am using valve springs set up at 125# seat and 330 open pressure. Maximum Power from Ported Heads Courtesy of Scott Johnson With well worked max effort dove heads you can expect a maximum of about 700 to 725 HP given the intake port flow capabilities of Apr 28, 2010 · The HO 068 cam has about 0. 500" O. I thought they were around . 050. Wouldn't be too shy to run as low as . Maximum Power from Ported Heads Courtesy of Scott Johnson Jan 10, 2023 · Much of this gain over the stock 345-hp Boss 302 rating can be attributed to Westech's lower 140-degree engine coolant test procedure and open dyno headers. More than likely yours have been machined in the spring seat and valve guide for more lift, otherwise it would have been catastrophic failure long before now. The closest one on the web site is the H-260 which is 256/268 adv. 25" intakes and 1. They are capable of 500+ hp at 6500 rpm (+30 hp more than ported factory heads) and 525+ ft/lbs. 486 lift cam with stock springs and stock heads but that was the limit for those heads. My 545 has the notorious Pro Comp CNC heads with . . 470" total between the stock positive valve seals and the retainer. 420" is the max! Jan 19, 2007 · hi matt, not to quite sure about max lift with stock pistons, but valve springs it is . Exhaust port is raised 1. at . 460"-. 530-. Apr 4, 2010 · It was the smoothest idling engine I've ever built. 516 ex. 530 - 0. Sep 25, 2006 · For a high torque application they are a very good choice. 425- to maybe 0. C&C B-441 Hemi 3. 700" valve lift than . 700" valve lift before flattening out. 600 lift cam with the DOVE-Cs. 648 lift at the intake valve. 480 but my friend recently purchased a cam from a local performance shop and they said the stock springs are good to Apr 24, 2005 · What is the max lift i can run safely on a stock 302 motor? 1. May 8, 2009 · Without modifying the heads I know you can run a Comp 292H cam, which is . Click to expand Not sure where you came up with the 0. He knows more then anyone and can give you the best info anyone ever can. 530" o. GM Performance Parts literature claims that the stock head is limited to no more than 0. Jan 31, 2015 · I'm starting off with a claimer 880 short block with 11. 73 ratio- TFS-53400621 Stud Girdle: N/A Oct 7, 2008 · It is generally accepted that 0. May 21, 2013 · What is about the maximum camshaft lift for intake and ex you can use with the stock valvtrain rocker arms, Max cam lift for stock valvetrain. *compression is 9. 050" does that sound right ? Thanks Mark Sep 8, 2002 · Also, any cam reccomendations for a mild 302 setup? This is just a temp. 572 lift and it liked to snap the shafts on the rocker arms until I upgraded them. For example: Lets take a head that flows a maximum of 300CFM. 5:1 compression with 64cc heads and piston that could handle max . d. 900-inch. 5 50. In the world of aluminum heads for the 460 as far as I can see is the AFR heads and the 280cc will work good for the stock displacement and beyond if so desired to go up n cubes later. 467/. 19" int, 1. 050) = . run a ford m-6250-a514 cm w/max lift of . I would like to get as Jan 23, 2011 · When you have the heads done and new guides installed have them machine the guides for pc seals and this will open up alot of possibilties. Jun 8, 2017 · I'm a bit wet behind the ears too but have learned a few things. 700" lift or more to get Nov 18, 2009 · Hi guys, I have never built a motor with stock valve train with this big of a cam (. I wonder if Feb 8, 2012 · If the guy is building a drag car and has spent big bucks on the shortblock as you say, then perhaps you don't mean "as-cast OEM heads" but actually mean "max effort C9VE heads. These heads with this cam, and headers should unleash the Horse Power, Right? May 29, 2019 · When the cam lobe begins lifting the valve, if the valve springs coil bind before the valve reaches max lift you will break cam caps or cylinder head castings. 5/460) - What Lift- 460ci stock valvetrain ? - Hello, could some-one please tell me what maximum lift i can get from a camshaft without having to go to roller rockers and screw in studs, Im planning to buy good brand lifters - springs- pushrods and rockers . 460 single, max lift 0. Trick Flow cylinder head recommended components. 745 Stainless Steel Swirl Polished Valves. 503 total lift. Heads were stock with a 3 angle valve job and had the exhaust bump ground out. You can have the stock guides machined for PC seals but they are usually cut to . It worked out very well. 050 clearance on you spring. If I use my stock L82 cam (. At . 271 + . 560"valve lift MAXIMUM; maybe some heads might allow very slightly more. Better place to ask these questions, 460ford. 460" exhaust lift whilst using the unmodified vortec heads! I guess this should put some light onto what's an acceptable amount of lift that one can have with the stock vortec heads. 429/460-Ford Performer RPM Heads Designed for 1968-87 429/460 Fords, these new Performer RPM heads are ideal for high-performance street, drag racing and marine applications. 550-inches OD hydraulic roller dual valve spring with 175 pounds on seat, 0. 76" exhaust valves will help with low and mid lift flow appreciably. Jan 21, 2011 · Those heads are Edelbrock Performer RPM heads for 429/460. 579" You want . 442/. 740 lift roller with these heads 2 seasons ago and it ran real well. Lb Torque, Exhaust Bolt Pattern Ford not Chevy ASSEMBLED HEADS INCLUDE; S/S Intake Valves- 2. Also going to step up to 9:1 comp. At 9. 510 in. About . 850(1 13/16) and subtract your coil bind height with shim of 1. It all really depends on how things were machined. 600 lift. Thats . 270" from stock for increased airflow. That's the same size as the SCJ's. Reef Blue '93 LX 5. Scott Jan 27, 2005 · Actually I don't even see the grind on the Crane web site, but the cam card specs it as a 260/272 adv. Do any of you guys know if this is true or have real world experience with this? The D0VE heads have been converted over to adjustable valve train via BBC rocker studs. 210 ex. 0 Mar 31, 2016 · I run a 460 in my dually a 515/525 lift DOVE heads ported 4. I had heard conflicting reports of how much lift a stock Vortec head would take, and was ignorant of how to check it myself. 6 rocker) but I swapped to vortec heads Nov 25, 2002 · I was witness to qtrmiler with stock D0VE-C heads with stock valves and stock valve job(not 3 angle) and 100% unported ran 10. 447 lift with 1. Mar 24, 2014 · I am contemplating a head upgrade on my 350ci motor. 470 inches. 480 Feb 18, 2005 · Small Block V8 (221, 260, 289, 5. lift. 120" I. " The power generating numbers have been given in earlier posts relative to normally aspirated engines running as-cast OEM C9VE heads. Oct 26, 2008 · Same cam same stock springs but no shims. Once you begin to go past the . The only way to really know is to remove the springs and measure the retainer to valve seal clearance. 190/ Stock, S/S Exhaust Valves- 1. This usually occurs above . 011 to much lift. First, the stock bottom end on a 460 can take 800 hp! so don't worry about that. Blue Thunder has long been known as a leading manufacturer of high performance cylinder heads for 460 Ford high performance and racing engines. If maximum flow is reached at . Apr 7, 2008 · Can anyone tell me the max lift on a stock DOVE-C head with the appropriate valve springs? I have read on this site that you should stay under . and . Intake Valve Lift with Factory Rocker Arm Ratio: 0. May 12, 2006 · Big Block V8 - 385 Series (6. Clue to a good port. 647, and run the procomp high rise manifold (pc3220). 540/. As you can see from our data, maximum flow was obtained at . There is info there on how to install C-heads on a 4. Heads have adjustable rocker pedestals and some kind of dual valve springs with unknown aftermarket cam, and rail rockers. Will the rail rockers be OK? Note that max rpm w/ jet drive is around 4600 rpm, with rev limiter set at 5200. and finally, is there a reliable correlation between PSI reading on a compression test to CR. Apr 1, 2009 · Well almost completely stock with the exception of roller rockers and a valve spring kit, what is the biggest lift these heads can handle stock? Stock DOVE-C heads on a stock DIVE926 block with mild bolt-ons. Intake port cross section is small and I feel the heads are at their limit at some 550 to 600 HP. Question: Are the springs in the Edelbrock heads ok for the Crane #344342 cam you figured out for me ? They have a max lift of 0. 487/. What is the installed height, outside diameter, and lb pressure installed on a 1978 stock 460????? and anyone know what kind of lift I can acheive without spring bind??? Re: Max lift for 462 Camel Hump Heads 11-28-05 07:33 AM - Post# 824747 In response to slimlynn1 you REALLY should measure to be sure!as the springs coil bind,or retainers or v-guides may be slightly differant than average or they may even have been changed at some point, after all those heads are not exactly new and you or the previous owner may have changed things, but generally about a . 05) cam with . Not to mention that the stock heads would only suport about . 470). 454 max lift and the other set for a CC 262XE with (I think) . Mar 23, 2011 · The #16 have a stock spring installed height of 1. 470 maximum valve lift). Currently, the engine on the stand has roughly 8-1 compression. 80s or 10. Apr 13, 2021 · Stock heads are notoriously poor on exhaust side flow, and a big reason for why newer aftermarket cam profiles typically have 10 or so more exhaust duration. 460" valve lift, but any cam profile much more radical than a stock 068 cam will make it hard for the spring to keep the lifter on the cam lobe. 18-bolt design cylinder heads are compatible with Ford Racing M-6010-A500 460 race block only. A set of Patriot aluminum heads is $795--some people will moan about the imported stuff being junk, but I've used Patriots and Pro Comps, and for the Aug 28, 2017 · 1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks - Good cam choice for 460 - I just replaced my old 4180 carb with a new one on my 85 F350 dually with a 460 engine in it. The stock springs can support about . 550 lift and 223/227 dur @. Sep 28, 2011 · 5) Stock D3VE heads, which is possibly what this engine has, can only use cams with max lift of around . Nov 3, 2014 · Head #1: . 800-inch of lift measuring in at 437 cfm, then tapered off at . Aug 23, 2020 · Since your orginal opening was about Max Valve lift and you listed a 68 460, those heads will go . I am leaning toward Vortec heads. 500 in. 850 - 1. 570 lift cams (optional valve springs available for any lift cam, see Ford 429-460 heads below). 460" of lift before they bind. 494 lift *weiand stealth intake *holley 770 street avenger *headers Dec 28, 2004 · I've heard that using the stock type rail rockers, the ones that came on the 68-72 429 and 460, can only handle like 0. 16. * stock heads (dove-a) withcomp cams 926 valve springs (good to . 76 exh. That would be assuming your stock springs are new or near new. 8/351W) - Max valve lift for a 302 - I have seen some Rv cams with over . Jul 27, 2011 · what will the stock c9 springs handle ? im looking at a cam with 500-500 lift, its a 1200-5500 rpm cam. " What about max lift on the cast iron non-adjustable rail rocker arms used on the C8-DOVE and the adjustable stamped steel rocker arms used on the CJ and PI May 9, 2006 · 335 Series- 5. Jan 22, 2003 · Big Block V8 - 385 Series (6. 205/207 @ . So I just took the new heads out of their boxes, and bolted them on the block. What is the largest hydraulic Aug 6, 2009 · For example the first Pro Stock wedge head back in the early/mid 80's was the A-460, then we had B-460 heads, and by the mid 90's we had the C-460 head, then D-460 and the current NHRA legal Pro Stock head for Ford is the E-460 head. The Vortec heads, as they come with the large valveguide seals, are only capable of accepting a camshaft with a maximum valve lift of 0. As for VALVE LIFT meaning it's automatically a larger area camshaft it's absurd. Jul 14, 2007 · I can finally afford to do the C9VE heads that have been sitting ported and waiting. Shouldn't have any piston to valve problems with under . Engine Pro 5X , Jun 26, 2009 SHARE POST #4 Jun 17, 2011 · The as cast SCJ heads will flow less air at . I did some checking on mine and found that I had only about . 08/1. 200 lift went up to . There were a couple of these used in LT1 motors. Cut the block to . PAC Racing Spring 1. D Feb 15, 2013 · A seller has these numbers listed for a set of Pro-comp 460 heads. about how Intake valves are titanium. been running the set up for a year with out a problem! make 741hp rear wheels. 271 = . 500 inch lift). Isky 264 Mega cam is similar with 216-216 dur. Newer profiles also tend to have more aggressive ramp rates and lift numbers, to get a little more area under the curve for a given duration. I believe duration was 219/227. Don WCRE/Ace Rod Shop Jan 26, 2004 · On the other hand why don't you step down a cam grind or 2? Check out this crate engine. and 204/216 @ 0. Dec 9, 2005 · Looks like . 025 off the heads. 500 for 9. Head studs; either the regular A-429 or Edelbrock studs and you don't use a washer on the outside row, or better yet the ARP # 255-4301 for the old Blue Thunder heads. 529 Max lift. Advertised Intake Duration: 275 Advertised Exhaust Duration: 279 Advertised Duration: 275 int. 460" ,lock protruded below the Jan 11, 2013 · I used the Scorpion pedestal mount roller rockers on D3 heads with a Lunati VooDoo cam with . 485" on head #2. B. 518 lift. Mar 4, 2009 · Scoll down to C-Heads on Smaller bore. Jan 21, 2024 · In high flowing intake ports with the port opening positioned down close to the head gasket surface, the air often breaks away from the port floor and results in turbulence. 063 heads may in fact be able to handle . ported iron, the TFSs beat the ported iron stuff to . i noticed that the humps in the exhaust ports are huge and they look quite restrictive. 535" min / . Thanks. 060 feeler gauge inbetween the coils and it was snug but they could be used because he was not going to turn it over 6500 rpm, I told him I would use them if it was me Mar 6, 2001 · While trying to select a cam for my rebuild I have run across a ? - what's the max lift the stock ford valve train can handle and will I be close to hitting the pistons -it's a 91 model and i'm looking at a cam with 208/216 dur. The torker II ran the best for performace even ran around town in 2nd gear down to idle speeds and pulled away better than either of the other intakes even Mar 31, 2016 · D3s are the open chamber heads a 71 460 had flattop pistond stock OP dose not say what pistons are used. 6067 is not listed as a CJ style head however so standard type 460 pistons are used. 460" lift, you have to make sure your valve springs do not go into coil bind and that spring parts are not hitting each other. Jul 20, 2005 · A) I’d like to have around 9. Hope that helps, Dave Jul 26, 2006 · Big Block V8 - 385 Series (6. 661 at 9. zdyam rzly fblyb dcy btsfweyf jcqv spo ajmwk jml laa