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I don't reccommend using 40+ year old heads on a non lead engine but. The early heads will bolt on and if you drill the 400 steam holes in the early heads they will work.Im trying to find out if these would be good heads for a 350 buildup. the 461 heads are very nice heads, but the vortec is a little better performance wise. comp. varies depending upon head gasket used and how far down in the hole your pistons are, and if flat top or domed or dished. sam-missle. Like. D.The bigger heads to follow were the "double-hump" heads championed by the mid-'60s 327 engines. The easiest way to reference any production head is with the last three digits of its casting number. The most famous heads are the 461 and 462 heads that offer 160-cc intake ports, 64-cc chambers, and 2.02/1.60-inch valve sizes.

Camel hump heads. Good evening to all. I am finally back into hotrodding, and have a couple of questions for whoever can answer them. I have a '59 El Camino that my uncle put a 327 in from a 1965 impala. I have since pulled the engine out and I am begining the rebuilding process. I noticed that the heads had the unique camel hump …461 and 461X (double hump)-These were the original double-hump castings and feature 64cc combustion chambers and a 2.02/1.60-inch valve combination, but have slightly larger intake ports; 461 ...Budget built 283 with 0.040 over cast hypereutetic pistons, shot peened rods/ARP bolts, GM 350HP/327 hydraulic cam and Z28 springs, medium riser aluminum intake, vacuum HEI recurved to be all in at 2800, small four barrel, ported 305 416 57cc heads and some small tube headers will get you into the 4500 range at about 300 HP.The 461 head chambers are not laid back on the plug side of the chamber like other SBC Camel hump heads. They are even more sensitive to octane requirement than typical cast iron camel hump heads. ... 3580 #, 6.0 LQ4, Summit pistons, 244/[email protected] 637/612 Jones cam, Holley Split Race, Holley 850 Street HP, msd 6014, 11.5:1, T-350, 501 Converter ...

The vortecs MAY BE BADDER on dyno sheets but with the average 400 hp street motor I bet the difference is almost nothing seat of the pants, my 1.94/1.50 valve camel humps went 7.38 in the 1/8 I seriously dont think it woulda been any 'SEAT OF PANTS" better with vortecs.Ok I got more info on the motor via email from the previous owner..Here we go:Edelbrock performer cam kit, performer intake manifold with Rochester 4 bbl. Correct numbers matching camel hump heads, HEI distributor, factory points distributor, coil ect. The engine was flushed with the freeze plugs out on the engine stand with a pressure washer.The engine is a stock 350 4 bolt main out of a 68 camaro. I am adding 461 double hump heads a edelbrock performer rpm cam (234/244 dur @ .050, .488/.510 lift), edelbrock performer rpm air gap intake w/edelbrock 750 carb. also I have an msd 6al box on a stock distributer w/a points conversion kit in it. ….

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With a 76cc chamber head on a 350 Chevy, your compression ratio will be around 8.5:1 assuming the use of a 0.041 inch thick head gasket and the piston is between 0.015 to 0.020 inch below the deck surface. Just by changing to smaller 64cc heads, the compression ratio improves from 8.5:1 to 9.7:1 with no other changes.One thing i havent seen posted yet is most all of the early camel humps 461's and 462's (and 291? i think) alike are 1.94 intake and 1.50 exhaust which is a basic 4BBL head. Only the TRUE "FUELIE" heads and 327"-350HP of the same casting #'s had 2.02/ 1.60 valves and the chambers were relieved on the intake side from the factory to unshroud the ...Hate to burst your bubble but where I live a set of "Camel Hump" heads will cost you around 250$ ( the circle-track guys buy every set they can find). ... 2.02 intake and a little port work, not to much so I could keep intake velocity up,came out 62 cc with .030 off of head surface. came out 462 hp so those are a good choice.

Jun 11, 2023 · Heads have screw in studs/guide plates, are machined for .495 pos-lock seals and have 1.450 spring pockets. Will replace .040x1.55 gasket with .039x4.166 gasket. Should be 9:1 but with .065 quench. New Manley Street Flow 11/32 2.02/1.60 valves, positive lock seals, comp 26986 beehives with 10 degree PAC retainers/locks.Shop Chevy 350 Heads and get Free Shipping on orders over $149 at Speedway Motors, the Racing and Rodding Specialists. Chevy 350 Heads in-stock with same-day shipping.1. 1963duce100. 67 posts · Joined 2004. #5 · Feb 7, 2005. RV cams are built to run under 4000 in a heavy truck, so lift and duration are small. with a short stroke 327 in a light car (camaro) you can get away with more cam a Crane energiser 272 has .454 lift and 216 @.050 it is about the same size as the 300 hp 327 cam.

steel trash can home depot Jun 10, 2016 · I believe the INTAKE valves are the 1.92" in diameter and the exhaust are 1.50". These were the heads used in 1965 on both the 327 - 250HP and 327 - 300HP. If the engine was the L79 series 327 - 350HP the heads had 2.02' intake and 1.6" exhaust - I believe. The cams used in the 250HP or 300HP were pretty mild, good idle and low-end torque and ...By Engine Builder. Published: Oct 26, 2023. Trick Flow Specialties DHC 200 Aluminum Cylinder Heads combine the classic looks of 1960s-era 'camel hump' cylinder heads with CNC-ported airflow capabilities to give a small block Chevy a big dose of horsepower. You can see the heads for yourself at the Trick Flow Specialties booth #23011 in the ... little caesars hours christmas evenoozhawk santa barbara ca Camel hump heads. Jump to Latest Follow 21 - 31 of 31 Posts. 1 2. testcase · Registered. Joined ... Ive seen 630 HP 360 inch, flattop, 1.94 valved fuelies run high nines (9.70s) @ 3100 pounds. Builder and Machinist of the fastest pound for pound NA oval port big blocks on the planet.Rebuilding my old and tired 327 Camel Hump Heads from 1967. Cleaned, lapped and refreshed with new seals and retainers.#1967impala #chevroletimpala #chevyim... paywall unblock I really have no idea what the number would be. You'll be able to feel a difference. But the HP:$$$ ratio is not equal to, or greater than the HP:$$$ ratio on aftermarket heads. Especially in a closed hood car, where you can't even see the camel hump marks. If you're not worried about the most performance for the dollar, then keep the heads you ... 5.7 gmc enginemuffler shop near me cheapwhen is the best time to purchase tires Heads have screw in studs/guide plates, are machined for .495 pos-lock seals and have 1.450 spring pockets. Will replace .040x1.55 gasket with .039x4.166 gasket. Should be 9:1 but with .065 quench. New Manley Street Flow 11/32 2.02/1.60 valves, positive lock seals, comp 26986 beehives with 10 degree PAC retainers/locks.Frankly, the easiest way to make 400 to 425 horsepower would be to buy a 5.3L truck engine and put on a carbureted intake manifold, a 750 cfm Holley carb, headers, and stick in a mild hydraulic roller like Summit's Stage 2 truck cam with 218 degrees of duration. That's not what you asked, but that would be the easiest way to achieve 400 hp. comenity capital bank credit card Nov 3, 2006 · T. techinspector1. 18069 posts · Joined 2005. #2 · Nov 3, 2006. "492" – 3991492. Good performance head. They were found on 1970 LT-1 engines. They had 2.02/1.60" valves, 64CC combustion chambers, DO have accessory holes, intake port volume should be 161CC's, exhaust port volume should be 62CC's. These heads have double hump casting marks. gentry funeral yadkinvillecbs46 atlanta newssony x93l vs samsung qn90c 327 Camel Hump heads... Jump to Latest Follow 3K views 2 replies 3 participants last post by evltwin Nov 17, 2005. C. Chuckles101786 ...The heads you have (462) came along in 66. Basically, there were two versions of the 461 and 462 double hump heads. Both versions were the exact same casting with the differences only being in machining and valve sizes. They either had 1.94in intake valves/1.5in exhaust valves or 2.02/1.6in valves.