l92 heads on lq9 6.0

[freemaSSon]

So...you kept the 62cc chambers which puts you at what CR? or did you use another set with larger chambers?

NOPE no worky....the stock 72cc's would have been like 12 to 1

the new heads are LPE freaked and tweaked full CNC hollow stem intake on stock diameter with patriot gold extreme duals that have been CNC BOWLED to 74cc's and i am still above 11.6 to 1......

that 4.135 bore size is a killer....and that is flattop pistons with 10cc valve reliefs.....

[ChevyLee]

This is what i wanna do to my lq9, l92 heads an the l76 intake.

[freemaSSon]

This is what i wanna do to my lq9, l92 heads an the l76 intake.

in a truck or a car?......

[ChevyLee]

in a truck or a car?......

in my truck, 98rcsb

[PurpleMinivan]

NOPE no worky....the stock 72cc's would have been like 12 to 1

the new heads are LPE freaked and tweaked full CNC hollow stem intake on stock diameter with patriot gold extreme duals that have been CNC BOWLED to 74cc's and i am still above 11.6 to 1......

that 4.135 bore size is a killer....and that is flattop pistons with 10cc valve reliefs.....

Okay. You had me thinking, how in the eff did he do that. Mine are at 75cc's w/ CR at about 11.0 to 1. Might be leaving some on the table but there's room to adjust timing.

[PurpleMinivan]

This is what i wanna do to my lq9, l92 heads an the l76 intake.

in a truck or a car?......

Uh oh, here we go. A gto is 4k lbs. and runs the car intake. A big stall and some giggle juice will make up the 20ft lbs lose of TQ.

[skeet]

Okay. You had me thinking, how in the eff did he do that. Mine are at 75cc's w/ CR at about 11.0 to 1. Might be leaving some on the table but there's room to adjust timing.

thats the cr i am looking at 11:1 not interested in spraying or going FI, plans to stay N/A

[ChevyLee]

my truck is 4200 and im not running spray.

[PurpleMinivan]

thats the cr i am looking at 11:1 not interested in spraying or going FI, plans to stay N/A

62cc'd chambers is as low as you can go, 65cc's is safe. I haven't done the math but that would put you pretty close to 11 to 1. Stock LQ9 CR is 10.3-10.4 to 1?

my truck is 4200 and im not running spray.

I think Im going to be lighter than that at race weight. No spray=chicken. J/K to each their own.

[freemaSSon]

to each their own.

YEAP, including giving away TQ for no good reason.....



L92 INTAKE for L92 HEADS!!!!!!!

so the spray does all it can do.......then the "termi" will look like he's testing his ABS the next time you line up with your buddy........






hopeing to get back to the track WED to test the 4.10's that i re-installed and some tranny tuning we have done......200 shot or bust!!!!!!!!!