Help with sb combo

chad67gtdart said

Is it just me, or isn't the 318 stroke different from the 340? Sure it will fit, but may change final comp. ratio.

Click to expand...

Same.......273,318,340 = 3.31 stroke
..........................360 = 3.58 stroke

Cube difference is in the bore..
318 = 3.91
340 = 4.04