Chevrolet Brand Small Block Intake Manifold Question.
Posted in Fuel Systems & Components | Asked on Mar 7, 2011
Below is the question about Chevrolet Brand Small Block Intake Manifold Question., The 1965 Corvette 365 hp 327 engine had a completely different standard Chevy aluminum intake than the 1969 Z28 302 Comaro. Explain why. I realize the carburetors were different as the 327 had a 580 cfm. Holley The 302 had the 780 cfm. Correct me if I’m wrong I think the camshafts had the same specs.
There are 3 Answers for "Chevrolet Brand Small Block Intake Manifold Question."
The camshafts are different the 69 has more output than the 65 vette so the manifolds are different in 68 they changed them
There’s alot of difference between a 65 Vette 327 and a 69 Camaro 302. The corvette’s have different cams, intake manifolds and carberators, and exhaust manifolds, valve sizes are different, the bore and stroke are different, the gear ratio is also different. A 302 is a overbored 283. A 69 302 doesnot have 365 HP. The 327 is a better engine. A newer 350 is a modified 327. Now if you want to make the camaro haul butt, put the 327 Vette motor in it. Put the 780 cfm off the camaro on the vette 327 and throw the 580 cfm in the trash.
This is an easy one. The Corvette didn’t have the space between the hood and the carburetor, that the 302 Z-28 did, so they went with a more high rise type intake to make more torque. The height of the carburetor, the space between the hood, and the style of the air cleaner, all play a major role in how much rise can be on the intake.
The lifts were very similar on these two cam shafts, but where the difference is, is in the duration. They were both solid lifter cams, but by increasing the duration of the lift, they were able to get much more air into the engine, thus more fuel, thus a larger cfm carburetor.
Glad to help you, Good luck!!!