FORUM RULES UPDATED - The forum rules have been updated to continue to provide a friendly and safe environment for our member community. Please take a moment to review the updated rules and our terms of use and privacy policy. Click here for Forum Rules which has links to the 'terms of use' and 'privacy policy'.
In Other News . . .
You will notice a few enchancements to the forums to make your experience better. These include: Email Notifications, Thread Previews, Thread Starter Notation, and Emoji Options on the 'Like' icon. . .
Additionally, the merchant portions of the website have been updated and are now operational. . . . Check out iBoats for all your boating gear.
Im going to be starting my new engine build shortly and just woundering what guys think of putting a crank scrapper in a marine engine? Also what are stock head chamber cc and valve sizes on 5.7 260hp 1984 era?
Im going to be starting my new engine build shortly and just woundering what guys think of putting a crank scrapper in a marine engine? Also what are stock head chamber cc and valve sizes on 5.7 260hp 1984 era?
Heads should be 165cc, don't see the need for a scrapper unless you plan on doing a lot of WOT. It won't hurt but the windage tray will work just fine.
That year could have 64 cc or larger chambers, 57s would give too much compression.. If you are changing your pistons make absolutely sure to get quench style pistons. With them you can run a little extra compression and timing for max ponies.
