Re: Is this a v6 Turbo ZR-1 Prototype Engine? Friend purchased it (pics) ---
The engine in the Turbo TransAms from 1989, were Buick 3.8 turbos. No "Pontiac heads". The build was so small, Pontiac would have never done a specific head. Not only would the head have cost a fortune but Pontiac would also have had to certify the engine with the EPA. It made much more sense to use the engine right from Buick.
Either way, that was a bad-*ssed car for 1989. I remember road testing a couple of them for magazines back then.
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Hib Halverson
Technical Writer
former owner 95 VIN 0140
current owner 19 VIN 1878
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