Can Old Heads Flow Like New Heads - The Supercar Registry

01-13-2011, 07:04 AM

69 Post Sedan 69 Post Sedan is offline

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Re: Can Old Heads Flow Like New Heads

If your trying to stay "authentic", 842 aluminum heads NEVER came on a COPO L72 motor from the factory in 1969, they came with 840 cast iron heads.

If you are set on running your 842 heads and they are unmolested I would sell them and find a set that have already been modified or go with a set of 074 heads...they will work better because of they are open chamber.

Kurt

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1969 SS396 Post Sedan Delivered to Van-T Topeka KS
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