11-11-2019, 06:41 PM
(This post was last modified: 11-11-2019, 06:42 PM by Misdirection.)
I can't speak to the 5.7, but on my Crusader 7.4's, I've got 4225 and 4227 respectively on them. Had a valve job some time ago. These are fresh water motors that are raw water cooled. But if you maintain them, they will last.
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