Chevelle Tech - View Single Post - Gen 6 HR cam in a Mark IV???
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post #38 of (permalink) Old Apr 8th, 14, 6:39 AM
GRN69CHV
Senior Tech Team
Joe
 
Join Date: Nov 2003
Location: Thornton, Pa
Posts: 13,345
Re: Gen 6 HR cam in a Mark IV???

Maybe compare the cam itself to another GENVI step nose cam. I only used GENVI hyd rollers and never had an issue with alignment. I'd double check the nose of the cam to make sure it has not been cut back. Regarding single timing chain, early on I used the GM set. It did gain slack, although I kinda doubt it was from chain stretch and more from break-in of the cast timing gear. Later went to the Cloyes billet GenVI set in -.005" line honed set for the 454.070 block. This was just as tight after 3 seasons and approx. 5000 miles as when went on. Reused this set on the 540 which surprisingly fit excellent on a new standard spacing block.

Status: Car-Less


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