Quote:

An off the shelf 3.79" stroke crank is available with 318/340 mains. I believe Mopar Performance sells it.



MP does'nt offer it anymore, but Callies & K1 both make a 3.79, but both have a 2.10" GM rod journal.

We do about 10 offset ground stroker cranks a year going to 2.0" Journal, most stuff can not go further unless the forging was intended for it.

We just DE-stroked a Callies 3.58" down to 3.48" a few weeks ago.

Stock 3.31" crank should have no problem going to 2.0"