I have a small block 283 that has a set of heads stamped avoy b, what hp would those head be?

Asked by Jul 01, 2017 at 06:31 PM about the 1967 Chevrolet C/K 10

Question type: General

the engine has roller rockers, there is a pyramid design on the back of the head, just need to know what kind of head that is.

4 Answers


Maybe the data on this site will help you ------ http://www.mortec.com/castnum.htm


A picture would be helpful.


The casting number is needed to ID the heads.

8347041 k8 8 gm 8

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