Technical > Matt Shaff's Engine Shop

The Nostalgic 265 Engine Build

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bfalfa55:
I know I could build my 350 more or anything bigger but I want to see what I can out of this little engine with a modern cam grind and better parts than an old school build. The engine is a 56 265, .060 over that has been balanced. It has cast dome pistons (still need to cc the pistons), 327 rods. It should be in the 10.5 to 11:1 comp range. It will be a street/strip engine. I am planning on using Comp Cams Extreme 4x4 Hydraulic Roller cam, .474 lift int & exh., duration 230 and 234 @ .050, 111 LSA. Being more limited to 1.94 intake valves due to bore size, I am planning on using a set of 1991 L98 Aluminum Corvette heads, 58cc chambers. WIth all this information put into Comp Cams CamQuest, it seems it should be a strong running engine. Reading one of your other posts here in the Engine Shop, I saw you say  many people port their heads too much for smaller cubic inch engines. I always thought that could be the case, glad I read that from somebody with more experience than myself. With stock flow showing 196 cfm @ .500 of lift, I only planned on porting them enough to clean them up and make them even. What ultimate flow numbers do you think would be good to shoot for based on the info. I have given ? Also, I am running a single plain manifold with a 650 dual feed, double pumper for a carb and roller tip rockers. I would appreciate any help from all of the rest of the FED groups expertise !

George:
I found my 355 too light on power. Had to move up.

wideopen231:
I have 2 283's sitting in building and have thought about building one for true Jr. Fuel car.Modern solid lifter cam,good set of heads and valvetrain,11:1 or so and 90% or so load.Run it high gear only with high rear gear. How long would it live? No idea ,but dang it would be a blast until the big blast of parts.

Right now I'll stick to getting car done and playing with little Hemi I have.

Paul New:
A buddy of mine held the record in SS/P in his 55 Chev I think it was around an 11.60 with a 265 and an itty bitty carburetor. Pretty sure he keeps the RPM's below 9000

bfalfa55:
I have been in contact with a 55 Chevy SS/O, SS/N driver who runs times similar to that. I figure with modern technology, a strong running street/strip engine can be built better than what you could make back in the good old days. I have tried to pick parts that would also work with a small blower in the future like m avatar pic shows.

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