1968maro

iTrader: (2)

I have a lq4 6.0L going into my 68 camaro. I have L92 heads and LS3 intake with factory fuel injectors. I am looking into the comp cams XR275HR13 cam. 222/234 duration and 556/576 lift with 113 degrees lobe separation. This car will be a daily driver. I don't want a huge stall converter. Will this cam be OK for around town yet still produce close to 500 FWHP? What stall converter would be recommended? I am also thinking about milling the heads. How much can I go before i have to fly cut the pistons with this cam?

bww3588

iTrader: (49)

Probably won't be able to mill much, but you need to pick your cam and check before milling.

I'd call Geoff@eps and have him spec you a cam.

low2001gmc

iTrader: (148)

with that low of a lift, you can mill .030 easy and be at bout 10.2 compression which will be good for that cam. you can make about 420rwhp at max and a 3200-3400 stall would work best with that combo. it would be a quick car.

now what i would do is mill .015 and run .040 cometic gaskets. this will still put around 10.2 compression. however, should you ever upgrade pistons or go with a higher lift cam, you can go back to running stock gaskets without the heads being milles as much.

alot depends on future mods or goals really.

bww3588

iTrader: (49)

Lift has little to nothing to do with ptv. Do not mill your heads until you have your cam to physically check ptv.

1968maro

iTrader: (2)

What kinda compression ratio would I be looking at without milling the heads and stock Lq4 pistons?