ls9 head gaskets needed for boost - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

kc ss/rs · 03-22-2015, 03:39 PM

getting closer to installing my maggie and have a question. should ls9 head gaskets be installed before the maggie goes on? i will be running the the 3.6 pulley with id 850 injectors and livernois fuel pump. i have a friend who just installed a procharger d1 on a g8 and he is having issues. have found on his vehicle that it's blowing coolant hoses and at times blows coolant out. heads are lifting letting exhaust in. talked to a couple of local ls builders and both confirmed that ls9 head gaskets are needed. anyone who can share advice or experience would be appreciated.

Bo White · 03-22-2015, 03:59 PM

I've not had an issue.

hammdo · 03-22-2015, 04:15 PM

I installed them as a precaution for my LSA SC install since I also did heads and a cam, but I don't think it is required... Besides 'Bo knows' ;o) -- couldn't resist...

-Don

Bo White · 03-22-2015, 04:22 PM

Nah lol. I will say that if the heads come off then throw the LS9 gaskets on. That's what I'm doing when I pull mine off for porting.

kc ss/rs · 03-22-2015, 04:33 PM

i have already done the ls3 conversion when i did the cam. just wanting to make sure i do this once ,and do it right! thank you for your replies they are appreciated.

Unreal · 03-22-2015, 04:44 PM

Not at all. Do them when heads come off but you can make 700+ without touching the heads.

Slowhawk · 03-22-2015, 04:53 PM

Not needed. I have plenty of 800+ rwhp cars on the stock gaskets.

1KillerSS · 03-22-2015, 10:22 PM

Stock gaskets here, I think it was Slowhawk that was telling me while we were at FSP, having a casual conversation watching Matt work on my car, that the LS3 heads will start pushing water after about 22PSI or more of boost. But I cant remember and I'll let him speak on it since he's already here in the thread. Anyway, everybody I talked to prior to that told me I was good with stock head gaskets for my build.

03-22-2015, 03:39 PM	#1
kc ss/rs Drives: 2010 ss/rs Join Date: Jun 2013 Location: kansas city missouri Posts: 247	ls9 head gaskets needed for boost getting closer to installing my maggie and have a question. should ls9 head gaskets be installed before the maggie goes on? i will be running the the 3.6 pulley with id 850 injectors and livernois fuel pump. i have a friend who just installed a procharger d1 on a g8 and he is having issues. have found on his vehicle that it's blowing coolant hoses and at times blows coolant out. heads are lifting letting exhaust in. talked to a couple of local ls builders and both confirmed that ls9 head gaskets are needed. anyone who can share advice or experience would be appreciated. __________________ rotofab cai ported throttle body sp headers with cats loud mouth axle back no mufflers tuned by steve williams 6l80etuning.com bmr split springs cam motion custom camshaft btr 660 spring kit maggie 2300 id850 injectors livernois fuel pump Last edited by kc ss/rs; 03-22-2015 at 05:41 PM.

03-22-2015, 03:59 PM	#2
Bo White Drives: 2015 Summit White 2SS 1LE Join Date: Feb 2012 Location: Vance Alabama Posts: 8,090	I've not had an issue. __________________ Retired wanna be cylinder head porter 2015 2SS 1LE Clutch reservoir, Vararam DRX, ported TB, TSP 2" headers, MGW shifter, stage 4 cam and Wilkes 11° 65cc heads Totalled: 2010 1SS Wilkes Performance/Eagle 416 shortblock, TSP custom valvetrain, PRC 260 heads, Edelbrock Pro Flo 102, th400 swap, 8" PTC 5500 stall= 535/435 at the wheels tuned Gen 3 Performance and Dyno 10.97 @ 124 full weight in 3100 DA CamaroFest X

03-22-2015, 04:15 PM	#3
hammdo 'It's an experiment' Drives: [COTW 2/09/15] '11 GPI LSA SC Z/LE Join Date: May 2014 Location: Dallas TX Posts: 8,709 View My Garage	I installed them as a precaution for my LSA SC install since I also did heads and a cam, but I don't think it is required... Besides 'Bo knows' ;o) -- couldn't resist... -Don __________________ 747 RWHP 794 RWTQ "Horsepower sells cars, torque wins races." - Enzo Ferrari See My Build: http://www.camaro5.com/forums/showthread.php?t=385577

03-22-2015, 04:22 PM	#4
Bo White Drives: 2015 Summit White 2SS 1LE Join Date: Feb 2012 Location: Vance Alabama Posts: 8,090	Nah lol. I will say that if the heads come off then throw the LS9 gaskets on. That's what I'm doing when I pull mine off for porting. __________________ Retired wanna be cylinder head porter 2015 2SS 1LE Clutch reservoir, Vararam DRX, ported TB, TSP 2" headers, MGW shifter, stage 4 cam and Wilkes 11° 65cc heads Totalled: 2010 1SS Wilkes Performance/Eagle 416 shortblock, TSP custom valvetrain, PRC 260 heads, Edelbrock Pro Flo 102, th400 swap, 8" PTC 5500 stall= 535/435 at the wheels tuned Gen 3 Performance and Dyno 10.97 @ 124 full weight in 3100 DA CamaroFest X

03-22-2015, 04:33 PM	#5
kc ss/rs Drives: 2010 ss/rs Join Date: Jun 2013 Location: kansas city missouri Posts: 247	i have already done the ls3 conversion when i did the cam. just wanting to make sure i do this once ,and do it right! thank you for your replies they are appreciated. __________________ rotofab cai ported throttle body sp headers with cats loud mouth axle back no mufflers tuned by steve williams 6l80etuning.com bmr split springs cam motion custom camshaft btr 660 spring kit maggie 2300 id850 injectors livernois fuel pump

03-22-2015, 04:44 PM	#6
Unreal Drives: 2006 Z06 Join Date: Oct 2010 Location: Gilbert, AZ Posts: 5,712	Not at all. Do them when heads come off but you can make 700+ without touching the heads. __________________ Nick Corvette Z06 -1200ish rwhp

03-22-2015, 04:53 PM	#7
Slowhawk Drives: 1999 Trans Am Join Date: Jul 2009 Location: Bridgewater,Ma Posts: 2,018	Not needed. I have plenty of 800+ rwhp cars on the stock gaskets.

03-22-2015, 10:22 PM	#8
1KillerSS Too much is never enough! Drives: AGP TT SS [COTW] 4/20/15 Join Date: Feb 2014 Location: Toledo,OH Posts: 4,149 View My Garage	Stock gaskets here, I think it was Slowhawk that was telling me while we were at FSP, having a casual conversation watching Matt work on my car, that the LS3 heads will start pushing water after about 22PSI or more of boost. But I cant remember and I'll let him speak on it since he's already here in the thread. Anyway, everybody I talked to prior to that told me I was good with stock head gaskets for my build. __________________ AGP TT kit, 54/57 Forged rotating assembly, Custom grind cam... Dual nozzle meth, ID850's, Livernois dual fuel pumps, ECS BAP, 25% UDP, 3 inch Magnaflow catback with X pipe, Mantic 9000 clutch, DSS 1000hp axles, DSS aluminum driveshaft, ZL1 rear end, solid subframe bushings, HE differential offset bushings, BMR Trailing arm, BMR toe rods, Lingenfelter LNC-2000,SJM Line Lock. 747 whp 714wtq *Build thread* http://www.camaro5.com/forums/showth...55#post8107855