chumslinger
Seaman Apprentice
- Joined
- May 2, 2009
- Messages
- 37
how much can a block be bored oversized. my engine is 1971, has already been bored 20 over, and now has hole in rear piston. dont know yet if it needs reboring, just got motor out today and torn down. the cam appears to have a flat spot on one of the lobes. Can i use auto cam, or do i need expensive marine profile cam? the boat by the way is 1971 glastron v164. i picked it up dirt cheap, good trailer, boat seems solid, but engine is doa, also has 250 outdrive. any advice would be appreciated. thanks