Let's talk 318/349/390 strokers.

the main bearing size in the 5.2 and 5.9 magnums are not the same...

the 5.2 is the same as the LA 318, and the 5.9 is the same as the LA 360.


requires the same piston as a LA motor....as said badger and Silvolite make a piston with the correct pin height...for 318 with 360 (3.58 stroke) BUT they are flat tops with no valve reliefs...so you could be limited in cam shaft size.....custom pistons will fix that problem...