How many K's on the engine? Would it have been rebuilt before?
Chances are if it has been built before it would have been bored 20thou already, especially if there was scoring in the cylinders.
If it is scored again, you may need to go 40thou over, but I'm not sure how much tolerance those engines have on boring.
Best bet is to strip it and get the tolerances checked.
Chances are if it has been built before it would have been bored 20thou already, especially if there was scoring in the cylinders.
If it is scored again, you may need to go 40thou over, but I'm not sure how much tolerance those engines have on boring.
Best bet is to strip it and get the tolerances checked.