What CC are 441 heads?

76cc
GM 441 IRON The 441 has a reputation as a good-flowing head among the production 76cc chamber heads.

Where are SBC head casting numbers?

Head casting numbers and the head casting date are located under the valve covers, in the rocker arm valley. This block number has been used in many different versions of this aluminum 18 deg and 15 deg Bowtie race head.

Are SBC 882 heads any good?

882s could be called the best of the worst. The catch with performance engines is you can usually find ready to run, used aftermarket heads for $450-500. Granted, they’ll be small, like a performer or dart iron eagle 180, but still offer significant improvement over a stock head.

How old is a 462624 SBC head?

I got a line on some 462624 sbc heads. They are date coded 1971. Valves 2.02/1.60 with 76cc. Need rebuilding but look good. The guy is asking $250.

What are the casting numbers for a small block 350?

Small Block Casting numbers Casting Number CID Years Valves Comments 10065202 350 82-86 1.94/1.50 76cc 10065203 350 82-86 1.94/1.50 76cc 10065204 350 82-86 1.94/1.50 76cc 10065205 305 82-86 1.84/1.50 58cc 10065206 350 82-86 1.94/1.50 76cc 10065207 305 82-86 1.84/1.50 58cc 10088113 350 86-92 1.94/1.50

What year did Chevy start cutting corners on the SB heads?

I’ve pointed this out several times before here and let me cover it again. Starting with the 1975 model (fall of 74) Chevrolet began cutting corners on the SB heads, such as the 462624 head. They were lighter, thinner castings, had an additional exhaust crossover passage (more heat) in the center of the head.

Are these really 482824 castings?

There is often controversy over the legibility of the numbers in the castings — while it appears that the 6’s look like 8’s the reality is that GM has never produced any “482824” castings. I took these into the local engine shop to get them dipped and cleaned up, torn down and magnafluxed.