Big Block vs Poly
http://www.bigblockdart.com/techpages/weight.shtml
Aluminum Heads save 50lbs/set
intake save 25lbs
water pump & housing save 15lbs
90lbs weight savings
The Stage VI bare casting weight came from mopar at 48lbs./pair, I have
personally weighed every other thing above,bare 452 castings 88lbs/pair incl., valvtrain of
course being equal so....... call ma mopar a liar. My friend had a set of Al. Stage VI's, but
didn't get to weigh them.You will save more weight on a SB switching heads&int. to alum.
than on a BB,that was the main point,and I'm still not buyin' the poly heads are 30lbs/pair
heavier than J/X castings. I need me some poly heads to weigh :) .
The logical thing is the SB,the coolest is the poly,the BB offers the most
HP potential since you're going Al. heads you can get the airflow to nix the extra mass.
Sounds like you prefer something different, and it's a stretch,but poss. in
polywood so I say go for it!! :glasses7:
