Dyno & Bench Racing Forum - HP est: LQ4, MS3 cam, milled 317s

Engine is going in a 00 Camaro, Its a LQ4, MS3 Cam, Milled 317s to 65cc(10.5:1 CR), LS3 intake, 90mm tb, full bolt ons. What do you guys think power wise?

LS3 intake on 317 heads???? They don't fit.

ah i just realized i typed that :bang: itll just be a LS6 intake, i was looking at L92 setups when i typed that

430~ to the wheels?

I was shooting for 450rwhp, would ditching the LS6 intake in favor for a ported LS2/90mm tb make the difference?

I was shooting for 450rwhp, would ditching the LS6 intake in favor for a ported LS2/90mm tb make the difference?

Ehh, you will probably want to spend the money you would pay for porting an LS2 intake elsewhere (FAST, or even a used FAST, or something comparable).

I said 430 as a conservative estimate, but also consider, even though you milled the heads, that's still close to stock LS1/LQ9 compression, bit it was probably a good move for squeezing out the NA power out of the LQ4.

So that's my reasoning, and mainly so you don't get your hopes too high.

So maybe 440 rwhp would be a better conservative estimate.

Thats what i was thinking, would rod bolts be worth doing before the engine goes in? i remember hearing something about the ARP rod studs weighing more then the factory TTY bolts? the engine wont ever be sprayed, just want to have it hold up.