I have started some enginework on #6287.
The stock open chamber heads has the usual mix of 4V channels and 2v valves.(D3ZE)
Today i was "out shopping" and bought a set of 4V heads for the 351C. The heads has a DOAE casting mark AND is of the open chamber design. The heads has the big ports and the big valves.
I have not measured the CC- but the heads has been milled and has been used with pistons from a 351 BOSS. This worked nice until the use of NOS blow the engine up... Anyway the heads survived
Is this a 1971 CJ head? Or what is it?
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