Yes...
According to Vizard, .025" is about it
in accordance with cam ramp acceleration/deceleration rates, in terms
of premature wear/breakage.
For the stock cam, my mech used the
factory recommended .012 "cold" (.014
"hot") with 1.25 rockers...+.03 in each
case with 1.5 types.
For uprated "factory" cams (from Cooper "S" grind up thru racing/sprint
types), the
recommendation is .015 "cold" or .018
with the more "manly" rockers.
There is a caveat here. The makers also
recommend (for the stock cam) using
.015 "cold" for continuous high rpm
work. Most likely this gives the odd HP
or two in the upper range on parts running
continuously on the "hot" (swelled) side! :)
Cap'n. Bob
'60 :{)
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