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(586)294-4404
OPEN 9:00 to 5:00 PM EST (Mon-Fri)
ProGram Engineering Has been REBORN as Billet Speedworks!
Billet, Hardened center main caps for the 3.8L and the 4.1L Turbo Buick V6 Engines. Essential for the new build of strong short block, we use these in every one of our in house engine builds.