i am wanting to do a cam change possibly a t-rex but on a higher lsa for nitrous and i was wondering which heads would work better with a mild port job
241s
of 5.3s
does any one have and dyno numbers with either of these combos

thanks dustin

 

You can run the t-rex with nitrous as is from thunder on the 109-110 LSA. It is quite fond of it actually. Their posterboy was gonna run the t-rex with a shot on top of it. Plus you don't need a higher LSA unless you plan on running like a 200+ direct port shot.

 

And as far as heads go. I would do the 5.3's. Nitrous likes a bit higher CR motor.

 

AFR 205's w/59 cc A little pricey

 

If money ain't a thing-ET 215's. On a budget, TSP LS6 heads.

 

thanks for the sugestions
how much will the 5.3s bump up the compression

 

10.8:1 most likely. Also a tough question to answer due to CC sizes and milling will change the entire DCR.