In article ,
wrote:
Even a child who has played with a Meccano set would know there is more
load on the cam of a pushrod engine than an OHC design. It is so
blindingly obvious it takes a real fool to dispute it.

Yes. The question is whether it's significant.

Then do some Googling on the subject of oils and pushrod engines.
Even you should manage that.

--
*If you try to fail and succeed, which have you done? *

Dave Plowman London SW
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