59a - or 59ab

[Walt Dupont--Me.]

Originally Posted by scooder

Walt,
The small bore 59's pass the pencil test, not seen one that didn't pass.
Martin.

Well guys I got the stuck heads off this 59 block, 3-3/16 + .030 it won't hold a pencil, so it's just a 59AB block with 59A heads, 46-47-48 crab dis. So I'll check pencil from now on, never know if anyone has changed heads. So if it holds the pencil test chances are it's a 3-1/16 or something, What if it was bored 3-3/16 and cain't tell? Then you go and bore another 1/8, dose anyone know if the walls are the same thickness? chances are there all the same block and the factory bored some 3-1/16 cause they had alot pistons left over. Walt