Posted by MoparNorm on Saturday, February 07, 2004 at 5:50PM :
In Reply to: Re: Why... posted by Harry on Saturday, February 07, 2004 at 3:03PM :
There are bottom end differences,the Poly has a forged crank, the LA is cast. The Poly oil pump is the SAME oil pump that you can get today from Mopar Performance by ordering the "high output pump". The cam, intake and exhaust manifolds are completely different, in addition to the heads.
MN