70 318 with 340 internals/Cyl Head
Just a FYI. 340 forged crank to the left 318 forged crank to the right. Same forging, completely different balance requirement. 340 has the drilled 1-2 /7-8 throw to allow for the heavier pistons in a 340.
Just a FYI. 340 forged crank to the left 318 forged crank to the right. Same forging, completely different balance requirement. 340 has the drilled 1-2 /7-8 throw to allow for the heavier pistons in a 340.