barry68v10
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The way that head is milled, you can't make round valves any bigger. Sure, there's room to the inside, but not on the outside. You could switch to oval valves and get LOTS of extra capacity on the Savage head.
If you started from scratch on this head, it would be no problem to use the same 1.3" intake and exhaust valves. The center of the exhaust valves would have to move inboard however, creating other "problems" to fix.
With such close sizes, I'd just go with a cam grind with the same intake lift and duration, and get exhaust lift and duration to match or exceed it... I wouldn't think it'd be worth the trouble to change valve sizes.
Total valve area is 1.9 square inches exhaust, and 2.65 square inches intake.
(compared with 2.01 square in. exhaust and 3.2 square in. intake area per cylinder for a high performance chevy 350 w/2.02 intake and 1.6 exhaust)
Translation: The Savage has more exhaust capacity and less intake capacity for its engine size than a HO chevy 350.
IMHO, the best cam grinds have equal intake and exhaust lift, and longer exhaust duration for the way I like to drive/ride...
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petc0ck mod, white spacer removed, 150 main jet, 12.5" shocks, 16" turnout muff, oil cooler mod, chain conversion, Tkat brace, external fuel filter, fuel screen removed...
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