J HAVE REPLACED ALL LIFTERS AND 3 ROCKER ARMS. I STILL HAVE PISTON NOISE WHAT IS BEST OIL AND/OR ADDITIVES TO QUIET ENGINE NOISE
May 20, 2010 at 2:24 PM
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YAHOO4
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34 POSTS
the recomended oil you should stay with, unfortunatly gm had a problem with piston slap on these engines when cold, should lesson as engine warms, the bullitine states that there is no longevity issues to worry about just an annoyance issue,