Quote:
Originally Posted by Tom Vaught
... and now the Racers have reduced that dimension over the years to .270"!!!!!!!!!!!
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PMD was in that territory in 1968, when they moved the "big valve" chamfer in the bore. The bore might have yielded .410, but the deck surface...
Trying to measure off of two angled surfaces with a dial caliper is like herding cats, but ~.260 for what it's worth.