Quote:
Originally Posted by sloGMC
The only difference I see per the sheets I posted are that LS8 has valve rotators like the Medium Duty C40/50 engines.
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Not to change the subject, but, the GMC 305 V6 was also available with the valve rotator option for pickups. Low compression and heavy duty valves with rotators were typically standard on all heavy duty gas vehicles, regardless of make.