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Steve@Rennsport Steve@Rennsport is offline
Registered User
Join Date: Jul 2001
Location: Portland Oregon
Posts: 6,985
Those are large bore engines which leave less material at the case spigots for stiffness and expecially important with the early (non 7R) cases.

Its really all about how long you expect the engine to last.
Steve Weiner
Rennsport Systems
Portland Oregon
(503) 244-0990
Old 08-20-2005, 09:51 AM
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