197885 hp johnson bore

[flattop1]

Can the 3.370 bore be opened up to fit a standard 3.50 piston.
I can get a good 85hp block and have a good set of pistons.
Thanks
tony

 

[flattop1]

the 79 came with the 3.50 piston just not sure about this with the 78 how far it will bore.

 

[V153]

A '78 should be 3.5. Same's '79

 

[Faztbullet]

Nope...not enough meat in sleeve.