Thanks are they any good?Yeah it should be your valve sizes and combustion chamber size.
I believe its a 84-86 350 engine, when i researched the block number, it said it either came from c10 pickup or camaro. They are factory heads, i dont have the casting number with meDo you have any other specs for your engine?
Are these factory GM cast iron heads? And if so do you have a casting number?
Thanks for the infoLook for a casting number. 7 or 8 digits, under the valve cover. 2.02/1.60 was the largest stock intake/exhaust valve size. 75.5 = 76cc chambers. The big valves are good for making power above 2500 RPM. These heads are for the larger small blocks, 350/400.
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