sleeperlqx

iTrader: (3)

ok after lots of research I finally picked a cam and pulled the trigger on a LUNATI PART #20540711.

the cam is 222/228 @ 50 113 lsa and .567 lift with a range from 2000-6600... rpms

this cam is going into a 04 LQ9 engine, powering my heavy Tahoe. Truck has 4l80e, 3.73 gears, 3200 circle D stall, LPP longtubes and CAI intake.

When I install the cam I plan to mill my 317s .030 and get them to install the springs. New ls7 lifters, new chain, with pushrods. I will be adding a TBSS intake to the mix as well. Hopefully Im able to just put some 243s on it.

this is just my daily driver. So let me know what you guys think of my plans thus far.

looking for any thoughts or critizim.

gamble686

iTrader: (3)

Sounds like a very solid build. I really can't find anywhere to complain.

cdub81

iTrader: (2)

I have almost the same specs except higher lift and lightly ported 243's
EPS 222/226 596/605 IIRC and 112+4

Love the cam and the power is there all the way, put down 400hp and 380tq with a 2nd gear pull. I'm sure TQ woulda been higher with a 3rd gear pull and that was with the old 60e.

BigKID

iTrader: (5)

My cam has similar specs. (223/229 .577/.559 114+4 CamMotion grind) It worked very well in my truck NA before the blower. Your cam will have very little overlap so be careful raising your static compression up too much in such a heavy vehicle. It could have detonation issues at high load/low rpm.

sleeperlqx

iTrader: (3)

from what Ive researched seems to be a stout combo. Im not worried about load or towing for that matter. Im lowered 2/4 and cruise. Truck skips all low end at the moment, thus me wanting outrageous mid and top end. With the circle D stall It should be perfect. Just would like some 243s, or Im going to mill the 317s. My future plans for this truck will not need anything bigger.

Mangled03gmc

iTrader: (95)

Def should make for a good set up. I would think it will be a solid 425 hp engine.

sleeperlqx

iTrader: (3)

thanks for the answers fellas. Im really anxious to get it going. Planing to MILL some 243s and put those on the Lq9.

sleeperlqx

iTrader: (3)

ok....

Fuuuuuuuuucccccccckkkkkk

excuse me... now that, thats out....

I purchased this cam with plans of staying cathedral style heads... but now Im like damn that, im switching to some square port heads, just cause it will be cheaper for me, as Im pulling my heads any way. going to need to purchase new springs, and was going to update to the tbss intake..

WILL this cam perform good with a set of L92s and a .040 gasket set?

the cam says both gen 3 and 4 engines

gamble686

iTrader: (3)

Okay so if you are swapping to square ports then TBSS intake is out it is designed for cathedral heads. You will want an L92 intake. This cam will still do great with the better heads, but with better heads you can go bigger on the cam. Not a requirement by any means. Just an option. Just going to point out real quick that jumping to square heads and a bigger intake with 87/90mm tb will cost you $1000+ and get you -/+40rwhp all of which will be felt in the upper rpms. IMHO mill the 317s and keep it simple for now unless you got a fair bit of money you want to throw at this build and don't mind the hassle.

sleeperlqx

iTrader: (3)

makes sense when you put it in context like that. It will still cost more, as I will have to upgrade springs on them as well as the new intake right away for the l92. meaning more down time I could pass up on....

think Im going to just stick cathedral... focus on good springs, ls7 lifters, .040 gaskets, oil pump and timing chain. Then with the 1000 I was about to swap heads with, just run a TBSS intake and 102mm? DBC