LS2 with L92 heads makes 460rwhp/446rwtq
02-03-2011, 03:18 PM
#81
TECH Enthusiast
02-05-2011, 04:43 PM
#83
are you THAT lazy you cant go on google, type in "pace performance l92 small bore cylinder heads" and then click the link it gives you? c'mon people....
but hey, I'm nice so WAALAH! http://paceperformance.com/i-6255501...nder-head.html
no pics but it gives lots of info.enjoy
but hey, I'm nice so WAALAH! http://paceperformance.com/i-6255501...nder-head.html
no pics but it gives lots of info.enjoy
02-08-2011, 04:17 PM
#84
TECH Apprentice
iTrader: (7)
Join Date: Apr 2005
Location: New Berlin Wi
Posts: 309
Likes: 0
Received 0 Likes
on
0 Posts
Are you refering to just the loss in compression, or quench as well?
I'm wanting to build a simular motoe with an lq4 bottom end and milled l92 heads. The compression should be a little over 10.0 to 1.
Thanks,
Kory
02-09-2011, 01:35 PM
#85
I was referring to the loss of static compression. Take caution milling L92 heads too much with dished LQ4 pistons. To get to 10.0:1, you're going to need to mill the heads around .036" which will put your valve drop around .097" and it's not guaranteed that the valves will still not hit the pistons. The L92 valves are VERY close to the 4.0" bore of a 6.0L and may hit the outside of the piston dish (the higher part). Maybe, maybe not.
__________________
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
03-10-2011, 09:31 PM
#86
I was referring to the loss of static compression. Take caution milling L92 heads too much with dished LQ4 pistons. To get to 10.0:1, you're going to need to mill the heads around .036" which will put your valve drop around .097" and it's not guaranteed that the valves will still not hit the pistons. The L92 valves are VERY close to the 4.0" bore of a 6.0L and may hit the outside of the piston dish (the higher part). Maybe, maybe not.
03-20-2011, 08:08 AM
#87
I was referring to the loss of static compression. Take caution milling L92 heads too much with dished LQ4 pistons. To get to 10.0:1, you're going to need to mill the heads around .036" which will put your valve drop around .097" and it's not guaranteed that the valves will still not hit the pistons. The L92 valves are VERY close to the 4.0" bore of a 6.0L and may hit the outside of the piston dish (the higher part). Maybe, maybe not.
Meaning would you spec something different today than 2yrs ago for the OP? I've read a few more post from people saying, if they had it to do over, they wouldn't mill these heads at all, and go with a bigger cam.I'm very much a novice and just looking for suggestions...Again, referring to OP's wants, would you change the cam today? Also, would the 1 7/8" headers still be recommended for the 6.0?
Thanks for any info
03-29-2011, 01:26 PM
#88
TECH Regular
iTrader: (11)
Join Date: Aug 2005
Location: TX
Posts: 456
Likes: 0
Received 0 Likes
on
0 Posts
Patrick, I'm also planning a similar build....after almost 2yrs since this was posted, have you learned anymore about the cam design/L92 heads?
Meaning would you spec something different today than 2yrs ago for the OP? I've read a few more post from people saying, if they had it to do over, they wouldn't mill these heads at all, and go with a bigger cam.I'm very much a novice and just looking for suggestions...Again, referring to OP's wants, would you change the cam today? Also, would the 1 7/8" headers still be recommended for the 6.0?
Thanks for any info
Meaning would you spec something different today than 2yrs ago for the OP? I've read a few more post from people saying, if they had it to do over, they wouldn't mill these heads at all, and go with a bigger cam.I'm very much a novice and just looking for suggestions...Again, referring to OP's wants, would you change the cam today? Also, would the 1 7/8" headers still be recommended for the 6.0?
Thanks for any info
Go with a less restrictive intake and exhaust for starters; bigger TB, intake, manifold, true duals, etc.
I think it's pretty safe to assume my combo would've picked up a decent amount up top with those changes.
04-06-2011, 06:15 PM
#89
I have to run cats for emission testing here. Also, I'm LQ4, so generally asking about milling heads or not, and primary size for the 6.0?
I'm also auto and 9", not good for numbers I know but would like to see 420-430
12-19-2011, 08:51 PM
#93
Teching In
Join Date: Jun 2011
Posts: 32
Likes: 0
Received 0 Likes
on
0 Posts
Any new developments for this combo? I'm currently building a .030 over LQ4 with LS3 heads and intake, and I'm in need of cam advice, I want the maximum power under the curve with about a 5500-6000 rpm hp peak. I'll be real happy with 500lbft if its even possible with this combo.
12-21-2011, 02:10 PM
#94
This is what I'm planning to do on my build. Just need to figure a few things out on it. I pm'd Pat G about a cam a while back.
LQ4 6.0L (1999 block)
LS3 heads and intake manifold
Long tube headers and true duals
T56 6-speed
Tuned
What I need are some flat top pistons, I thought about going turbo but maybe later on. I'm gonna have to have the block bored anyways...
What kind of power would it make with the dished pistons in it?
LQ4 6.0L (1999 block)
LS3 heads and intake manifold
Long tube headers and true duals
T56 6-speed
Tuned
What I need are some flat top pistons, I thought about going turbo but maybe later on. I'm gonna have to have the block bored anyways...
What kind of power would it make with the dished pistons in it?
03-25-2012, 01:32 PM
#99
MASS seller approved
iTrader: (148)
Join Date: Jul 2007
Location: ELSA, South TEXAS (956) 802-7700
Posts: 1,425
Received 131 Likes
on
87 Posts
had to get me this same cam for my build...why experiment when something is proven...especially on a budget as i am lol...except i got ported truck intake and it will hopefully go in my 72 nova 
