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#1
09-13-2010, 04:41 PM
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ZL-1 heads (69)
anyone know about how many sets of ZL-1 heads GM made. I just looked at a set, I can't imagine they made a lot.
on the bottom are cast 678910, 12345, 11098, 4856 side stamp is EPD 6255 on the top is cast 3946074 each one has a few helicoils, which I guess are common? but I am thinking these don't come up forsale often? 69 date code the most desirable? -bob 
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#2
09-14-2010, 03:27 AM
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Re: ZL-1 heads (69)
They are all over eBay. Lots were made and sold over the counter, up until 1974. Production date coded 1969 is the most desirable.
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1968 Z/28 34,000 mile, born with engine and trans, Shipper, California car, Fathom Blue, deluxe interior, M21, 3.55 Posi 1962 Oldsmobile Jetfire, Factory all Aluminum V8 Turbocharged and Methanol Injected TURBO ROCKET engine, 4 speed Hydramatic, 4 link rear suspension, 3.36 Anti-Spin differential, California car, PS, PB, PW, AC, Jetfire 2 option package.
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