venom99

iTrader: (32)

are these heads any good i just picked up a set and was wondering what i can expect from doing a 5 angle port job on them

headed-ws6

iTrader: (34)

If you compare them to 806's and 853's stock for stock the 241's flow alittle better but once they get ported there really is no difference. I would say its all in what type of cam your running and how much the heads flow and are ported.

matt94z

iTrader: (49)

I have 241's that came on my car (late 2000 model) and it performs very well for a bolt on car. It runs 12.5's on street tires and put down 353/369 on a dyno jet with the 6 speed tranny...Don't know if the heads are the reason though.

Jantzer98SS

iTrader: (54)

They're the best flowing stock LS1 heads. The valve job won't pick up much per se. Blend the bowl and narrow the valve guide and you'll see some good gains.