I'm looking at mph increase, not much of a dyno person.

If I'm trapping 111-112 now, adding Patriot 5.3L S2 heads on should put me about?


Thanks
Andrew

 

I'd guess that you'll pick up 2-3 mph. The LS1 heads flow pretty good stock and Stage II heads are prolly only going to give you 20-some rwhp with your 224 cam. I can only base this on what I have seen/read, so you may do better. Good luck!

 

Going by the last graph that was posted, I'd say you'll pick up about 6-8 mph with your cam. 118-120mph is normal around here with a 224 cam and S2 heads. I'll be guessing myself, I just ordered mine yesterday.

 

I would guess in the 117-18 bracket because you already have the intake, headers, and cam that are being held back a little due to head flow.

 

I'll be very very happy to get 117-18

 

That really shouldn't be a problem. I hope I run 120+, but I got a bigger cam.