Getting ready to swap out my 5.3 in my 03 sierra for a lq9 maybe use the l92 heads ive heard they flow very well. Im pretty sure im gonna stroke it to a 427, but not sure if the l92 heads will work on the lq9 block and intake and for that matter if the 6.0 will mount right in or the intake will work with my truck at all ?
03' sierra Z71 slt ecsb 5.3 throttle body coolant bypass, k&n complete intake kit, descreened mass airflow, dynatech long tube headers into dynatech high flow cats with y pipe into magnaflow split duals out the back.
"I call her trish" ..... cause something this sexy and devious has got to be bad for your health....
Cant make a 6.0 a 427 (unless you sleeve the block). Cant use L92 heads with a stock truck intake... you need the L92 intake.
Last edited by pl4yboy; 11-22-2009 at 04:27 PM.
1969 Chevy RCLB C10 350/TH400 SOLD
2007 Chevy RCSB 4.8 4x4 LS SOLD
2008 Chevy RCSB 5.3 4x4 LT SOLD
2010 Chevy CCSB 6.2 4x4 LT SOLD
2005 GMC CCLB DRW 6.6 Duramax 4x4 191,000 and counting
2013 FORD CCSB F350 6.7 Powerstroke 4x4
I might just stick with the 408 stroker build then, the l92 set up is what came on the 07' and up tahoes correct?
03' sierra Z71 slt ecsb 5.3 throttle body coolant bypass, k&n complete intake kit, descreened mass airflow, dynatech long tube headers into dynatech high flow cats with y pipe into magnaflow split duals out the back.
"I call her trish" ..... cause something this sexy and devious has got to be bad for your health....
L92 heads come on every +07 6.0 and 6.2
2006 SilveradoLittle Black Bitch
lq9 is all aluminum....Cant bore it....Correct?
2000 Silverado ECSB- 5.3 CAI, Pacesetter LTs, ORY- Pipe, Magnaflow XL, E-fan, Ported T/B , Nelson Tuned, Built 4l60e, Circle D Stall, 3.42s G80, 2-4 Drop, Hertz Highs, Rockford 501s
2004 Buell XB12s
Originally Posted by LamboDoNoMo
LQ9 isn't aluminum. LQ9 just has different pistons than the LQ4. Same iron block, just different pistons. The LQ9 can be bored to a 408 though.
1969 Chevy RCLB C10 350/TH400 SOLD
2007 Chevy RCSB 4.8 4x4 LS SOLD
2008 Chevy RCSB 5.3 4x4 LT SOLD
2010 Chevy CCSB 6.2 4x4 LT SOLD
2005 GMC CCLB DRW 6.6 Duramax 4x4 191,000 and counting
2013 FORD CCSB F350 6.7 Powerstroke 4x4
Y waste money on an lq9 if ur gonna bore it out? just get an lq4
2004 Buell XB12s
intake wont work but the heads will bolt up
Simple: 408 on steroids!
single digits coming soon!
True the lq4 uses dished pistons(9.41ratio) where the lq9 uses flat tops(10.1)ratio . I know the l92 heads are great for these motors and they bolt right up, and i'd rather run the L92 intake anyways since it flows better as long as i can make it work in my truck is what im wondering. My question with the lq4 or 9 is knock senors and the reluctor wheel, if i have to do any modifing or not?
03' sierra Z71 slt ecsb 5.3 throttle body coolant bypass, k&n complete intake kit, descreened mass airflow, dynatech long tube headers into dynatech high flow cats with y pipe into magnaflow split duals out the back.
"I call her trish" ..... cause something this sexy and devious has got to be bad for your health....
the l92 and every other head have different intake port designs, so you have to run a l92 intake with l92 heads, and the other truck intake with every other head. make sense?
but yes, the l92 heads and intake will bolt right up to a 6.0 block and work great in your truck
01 Silverado
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