I do remember seeing that website a ways back. That fueled my interest in the Poly, even on a 402, they are pretty much maxed out at a little over 400hp. I see on the sight where is says that it should be good for 500+ HP, but nothin to back it up.
So your talkin a difference of 10lbs. Still saving 80lbs on the BB and that is still a lot. Along with an aluminum master cylinder, battery relocate to the trunk, headers. Still will have a better weight distribution than a stock 440 Cuda and closer to a stock Small Block, so it should go around corners.
Poly Heads weight 51lbs each with out rockers arms. Actually over estimated the Poly, should be closer to 511lbs with aluminum intake
.
http://www.moparchat.com/forums/showthread.php?t=117690
More expense with a Poly, one extra expense that comes to mind would be custom headers.
I think I'm settled on a stroked 400.
