2 bolt mains a time bomb on a 430rwph motor? Building a stroker 383 Should it hold the power with a two bolt? Not planing on spraying or a blower just a basic n\a stroker with the LE3 package top end and down the road a custom intake manifold. Thanks Cameron

 

Depends on how high you plan to rev it. I've heard that moving at 6500+ is "pushing it." I talked with AP Engineering over this issue during my motor build, as I'm planning in the upper 6K region with my setup, and they said I should be fine. From what I can tell, generally speaking for most guys a splayed 4 bolt main is nothing but costly overkill.

 

Thanks, I plan on reving the motor only too 6500 max and I don't think it will see that high of rpm very often. This is my first stroker and just don't want it to blow up with one pass. Cameron

 

With ARP fastener's you will be fine.