468BIGBLOCK

iTrader: (4)

i have some parts laying around and want to put this together. for 2002 chevy. i do have a 4l80e in it now i think that it will handle the power. i have a low mileage 2004 6.0 lq9 out of a cadilac escalade. i also i have a set of l92 heads laying around. i have a new in box comp cam-54-000-11 specs are dur @50 231 on intake 236 on exhaust. the lift is 644 on the intake and 613 on exhaust. lobe seperation is 112.0. not a daily driver more of a week end toy and drive it back and forth to work 7 miles a day. on nice days. regular cab short bed 2wd truck. will this cam work with the heads? what converter? what gear ratio. i do have a set of pacesetter long tubes. i do have a late model 2008 l92 intake with stock injectors. and will prolly at a later date put a 100 shot of juice on it. any suggestions. thanks.

low2001gmc

iTrader: (137)

that cam will definitely need to have ptv clearance checked. risky in my opinion. i would say sell it and get you a cam on a 113 lsa for nos and with 8 degrees split duration since heads are stock unported. mill heads .030 to bump compression to near 11:1. at least 3600 stall and 4.10s.

sleeperlqx

iTrader: (3)

Similar combo to mine. my cam is a comp also 227/235 .614/.621 on a 113 lsa. I'm hoping not to fly cut any pistons but if I do what is the minimum safe clearance to check for. Im having my head milled .030. and possibly runing a .040 if not a stock .051.

Whats makes is cam so different on a 112?

skeet

iTrader: (18)

definitely check for PTV clearance with that cam



no need to mill .030 mill .015 with a .040 mill gasket to achieve 11:1 compression unless youre wanting a few points more

sleeperlqx

iTrader: (3)

I did want a lil extra. But afraid to run into PTV problems. I may got .020 to be safe with the .040 gasket. But the more Im contemplating this swap. I dont want to be over 11:1 for a DD. Skeet you saved me again. I will mill only .015 and run a .040 gasket. I should have plenty PTV clearance and still be at 11:1 as well as get a good amount of timing into it.

I can always use a stock gasket. will also add to my PTV clearance if need be. But if I milled too much I would be stuck.

dirt track racer 81

iTrader: (45)

With my heads milled .040 with a 251/267 .623 cam with an ls9 gasket the valves where not even going into the valve reliefs, the exhaust valve had less clearance than the intake valve.

sleeperlqx

iTrader: (3)

what compression do you run? the lq9s have flat top pistons. I get so many opinions about this topic its not funny.

dirt track racer 81

iTrader: (45)

At that time with +5.5cc dome pistons I was 11.9.. I've since milled them even more