Quote:
Originally Posted by bart78
Van Pelts shows 3.75 stroke. And 3.1875 bore for the 41. The guy was telling me the crank was bigger. I knew some of the mercs were.
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Pre war 239s (99 block) started the larger rod journal ( 2.139") vs 2" on 221s
That 99 block is identified as having a round center water transfer port in
the deck . Later blocks had round middle and lower ports
Gene Tulsa