351m
Last edited by Torque1st; Aug 25, 2005 at 03:47 PM.
Check with user TMI for 4-bolt caps. You would want to rebuild it as a 400 also for any kind of performance application. The 351M is all wrong internally for performance. The pistons are too heavy and the rods are long which limits RPMs. The 400 still has long rods but it uses them effectively for torque. If you want RPMs check out a 351W.
Last edited by Torque1st; Aug 25, 2005 at 03:53 PM.


