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faapgar faapgar is offline
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Join Date: Sep 2015
Location: Costa Rica and Pennsylvania U.S.
Posts: 1,347
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I have never seen any that were pinned.I had a factory 2.5 that was not pinned.Starting with the RSR engines the factory had the through bolts with a shoulder where the case halves met.There was a flat side which allowed oil flow but it was the shoulder that kept the case halves from moving hence a pinning effect.Ciao Fred
Old 12-19-2017, 07:19 AM
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