Torque spec for header bolts? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Threlkeld's SS · 05-05-2013, 09:11 AM

Getting ready to do a header install and I need to know the the torque specs. Thanks

The Stig · 05-05-2013, 09:14 AM

I posted all the LS3 torque specs in the Big DIY Index. It's a sticky in the DIY subforum.

On that note, I believe it's 18 lbs/ft though.

SPCBA · 05-05-2013, 09:19 AM

remember to retorque after a few heat cycles...the cats or off road pipes too

BAWLZ SS · 05-14-2013, 01:31 AM

I doing my Kooks header install tomorrow and instructions say to torque bolts to 25-30lbs inst thatt too much. I dont want to strip the threads on the head. It also states to use a little bit of hi temp silicone on the gasket on both sides!? Is this correct? Sorry 1st time installing headers,on a car. Just want to make sure i do it right! Also do i use any lock tite on the bolts?

The Stig · 05-14-2013, 06:12 AM

Pretty sure it's 18 but

RJT-SS · 05-14-2013, 08:08 AM

I just finished installing my Kooks last night. I re-used the factory bolts and torqued them to between 18 - 20 ft lbs. No leaks so far. Will re-check after a few heat cycles.

Do not use loctite; you will never get them off if you have to. Use some anti-seize.

blazzin1 · 05-14-2013, 08:29 AM

ARH told me 18 ft./lbs. on the header bolts, and just "good-n-tight" on the O2 Sensors. That being said, I torqued the bolts down to about 22 ft./lbs. to account for prevailing torque, and I used anti-seize on the bolts too. And yes, need to re-check them in about 500 miles.

daveagogo1 · 05-14-2013, 08:45 AM

Use oem gaskets. Do not use loctite. Anti seize if fine on header bolts but that's up to you. However, you should use it on 02 sensors or pay the price later. 18ft lbs on the bolts then recheck after some cycles.

DEANGE2001 · 05-14-2013, 08:57 AM

I installed my kooks LTS about 2 weeks ago did about 25 ft-lbs...my buddy I did the install with is a mechanic and said 25 is fine and should not need retightening but I may still check them and the cats

axis · 05-14-2013, 09:12 AM

Quote:

Originally Posted by DEANGE2001

I installed my kooks LTS about 2 weeks ago did about 25 ft-lbs...my buddy I did the install with is a mechanic and said 25 is fine and should not need retightening but I may still check them and the cats

None of mine loosened up after 500+miles but there are PLENTY reports of that happening. Definitely enough to go back and check. It only takes a 15min or so to check them all.

LeanPocket · 05-14-2013, 09:40 AM

german nice and tight.. 120,000 miles no issues..

Alvin@PCMofNC · 05-14-2013, 09:50 AM

Kooks calls for 25-30 ft lbs. The manual calls for 18 if I remember right. We do not use the KOOKs gaskets. The stock gaskets seem to work better.

BAWLZ SS · 05-14-2013, 10:33 AM

Quote:

Originally Posted by Alvin@PCMofNC

Kooks calls for 25-30 ft lbs. The manual calls for 18 if I remember right. We do not use the KOOKs gaskets. The stock gaskets seem to work better.

Yeah im using my stock gaskets too as my tuner recommended. again Kooks calls for 25-30 lbs so I will be doing 25 lbs and see how that goes. The stock bolts had some yellow stuff on them when I was taking them off last night that's why I asked if I should use locktite but I will just stick to anti seize. Thanks everyone!! Cant wait to see how it will sound after!

The Blue Ox · 05-14-2013, 12:10 PM

Quote:

Originally Posted by BAWLZ SS

Yeah im using my stock gaskets too as my tuner recommended. again Kooks calls for 25-30 lbs so I will be doing 25 lbs and see how that goes. The stock bolts had some yellow stuff on them when I was taking them off last night that's why I asked if I should use locktite but I will just stick to anti seize. Thanks everyone!! Cant wait to see how it will sound after!

Be sure and get your inch pounds and foot pounds squared away! Big difference! 12 inch pounds equals 1 foot pound!
Should be kooks 25-30 ft lbs!!!

05-05-2013, 09:11 AM	#1
Threlkeld's SS Drives: 2010 camaro ss Join Date: Mar 2013 Location: ft lewis,wa Posts: 284	Torque spec for header bolts? Getting ready to do a header install and I need to know the the torque specs. Thanks

05-05-2013, 09:14 AM	#2
The Stig knows 2 facts about ducks Drives: ...and they're both wrong Join Date: Aug 2009 Location: The HMS Invincible Posts: 25,072 View My Garage	I posted all the LS3 torque specs in the Big DIY Index. It's a sticky in the DIY subforum. On that note, I believe it's 18 lbs/ft though. __________________

05-05-2013, 09:19 AM	#3
SPCBA Drives: pleather and Chiclets Join Date: Mar 2012 Location: a line somwhere Posts: 4,206 View My Garage	remember to retorque after a few heat cycles...the cats or off road pipes too __________________ the power by www.cunningham-motorsports.com the brakes by www.RacingBrake.com

05-14-2013, 01:31 AM	#4
BAWLZ SS Drives: '10 Camaro LS3 2SS/RS, 1968 Nova Join Date: Aug 2010 Location: California Posts: 972	I doing my Kooks header install tomorrow and instructions say to torque bolts to 25-30lbs inst thatt too much. I dont want to strip the threads on the head. It also states to use a little bit of hi temp silicone on the gasket on both sides!? Is this correct? Sorry 1st time installing headers,on a car. Just want to make sure i do it right! Also do i use any lock tite on the bolts? __________________ Performance- Kooks Headers w/HF cats, ZL1 Corsa exhaust, VMax, CAI Inc. CAI, MGW shifter, RX CC Suspension - KW V3 Coilovers/ Full PFADT & BMR suspension Appearance - ZL1 Fascia/Sides/ Diffuser, AAC Afterburners, RK Sport 3pc Spoiler, SLP Black out Kit

05-14-2013, 06:12 AM	#5
The Stig knows 2 facts about ducks Drives: ...and they're both wrong Join Date: Aug 2009 Location: The HMS Invincible Posts: 25,072 View My Garage	Pretty sure it's 18 but __________________

05-14-2013, 08:08 AM	#6
RJT-SS Drives: '11 2SS/RS A6 Join Date: Apr 2011 Location: New Orleans Posts: 504	I just finished installing my Kooks last night. I re-used the factory bolts and torqued them to between 18 - 20 ft lbs. No leaks so far. Will re-check after a few heat cycles. Do not use loctite; you will never get them off if you have to. Use some anti-seize. __________________ Performance Mods: Kooks 1-7/8 LTs; Calico coated w/HFCs, Solo Mach XL catback w/J-pipes, VMax TB, C.A.I. Intake, JRE Tune, RX Catch-Can

05-14-2013, 08:29 AM	#7
blazzin1 Drives: 2010 2SS/RS R6P Join Date: Nov 2008 Location: St. Cloud, FL Posts: 4,845 View My Garage	ARH told me 18 ft./lbs. on the header bolts, and just "good-n-tight" on the O2 Sensors. That being said, I torqued the bolts down to about 22 ft./lbs. to account for prevailing torque, and I used anti-seize on the bolts too. And yes, need to re-check them in about 500 miles.

05-14-2013, 08:57 AM	#9
DEANGE2001 Drives: 2010 2ss LSR CAI, Borla S axle back Join Date: Apr 2011 Location: Rochester, NY Posts: 208 View My Garage	I installed my kooks LTS about 2 weeks ago did about 25 ft-lbs...my buddy I did the install with is a mechanic and said 25 is fine and should not need retightening but I may still check them and the cats __________________ 2010 2SS (Red w/ White Stripes) LSR CAI, Kooks 1 7/8 LTs with Cats, Borla S-type Axle-back Exhaust and Tune "cmon, the engine has all forged internals...its just begging to be blown"

05-14-2013, 09:40 AM	#11
LeanPocket Drives: 2010 2SS Join Date: Jan 2013 Location: Corpus Christi TX Posts: 634	german nice and tight.. 120,000 miles no issues.. __________________ Build Thread

05-14-2013, 09:50 AM	#12
Alvin@PCMofNC Drives: 2010 IOM RSS Join Date: May 2009 Location: Mooresville Posts: 363	Kooks calls for 25-30 ft lbs. The manual calls for 18 if I remember right. We do not use the KOOKs gaskets. The stock gaskets seem to work better.