6.0 lq4 head gasket question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Low84 · 02-05-2013, 01:02 AM

I'm getting ready to drop in the lq4 into my project but want to take the heads off the engine to inspect the cylinders/pistons.

I went ahead and looked at jets and summit for head gaskets in anticipation and there is no head gaskets for the stock 4.000 bore??

Would a 4.030 (closest I've been able to find) work as well?

BR3W CITY · 02-05-2013, 04:12 AM

gm part # 12589227

or
12622033 if you are thinking about boost.

mcmlxix · 02-05-2013, 07:45 AM

Maybe you already know, Maybe I'm wrong, but pulling the heads to check means new torque to yeild heads bolts...

Jon01 · 02-05-2013, 11:45 AM

You're not wrong. Replace the head bolts as well.
If you're not planning on f/i or n2o OEM bolts are cheap and work fine.

Low84 · 02-05-2013, 08:13 PM

Quote:

Originally Posted by BR3W CITY

gm part # 12589227

or
12622033 if you are thinking about boost.

Thanks!! I gave a call to the local dealership they only have one in stock but said they can order me a set.

Quote:

Originally Posted by mcmlxix

Maybe you already know, Maybe I'm wrong, but pulling the heads to check means new torque to yeild heads bolts...

I actually didn't know that. I guess I'll order a set of head bolts while I'm at it then.

Not planning on boost any time soon, but I can see nitrous coming into play.

Jon01 · 02-05-2013, 08:22 PM

You might be able to get them cheaper at Texas Speed and they probably have them in stock.
http://www.texas-speed.com/p-205-gm-...er-gasket.aspx

http://www.texas-speed.com/p-1697-gm...-per-head.aspx

How big a hit do you plan on putting on it?
Under 150 and I'd say stock bolts are a-ok. I've seen folks push more down em but that's all I'd recommend.

Dustytrix · 02-05-2013, 08:26 PM

Summit has them type in the number above, they also price match. I just ordered a set from summit 34.00 each.

Jon01 · 02-05-2013, 08:56 PM

Even better! That's CHEEP!

low69chevy · 02-05-2013, 09:32 PM

On the head bolts look into the arp bolts you can get them on ebay and several websites for around 140 bucks but theyre reusable I've had mine for several yrs and havn't had any problems. Check gmpartsdirect for the head gaskets they might be cheaper havn't checked in a long time
Posted via Mobile Device

Dustytrix · 02-05-2013, 10:01 PM

I got the price match from gmperformancemotor.com They have good price but slow shipping

02-05-2013, 01:02 AM	#1
Low84 Registered User Join Date: Oct 2004 Location: Roma,TX Posts: 774	6.0 lq4 head gasket question I'm getting ready to drop in the lq4 into my project but want to take the heads off the engine to inspect the cylinders/pistons. I went ahead and looked at jets and summit for head gaskets in anticipation and there is no head gaskets for the stock 4.000 bore?? Would a 4.030 (closest I've been able to find) work as well? __________________ 1978 stepside C10 build: http://67-72chevytrucks.com/vboard/s...d.php?t=468265

02-05-2013, 04:12 AM	#2
BR3W CITY meowMEOWmeowMEOW Join Date: Sep 2009 Location: MKE WI Posts: 7,128	Re: 6.0 lq4 head gasket question gm part # 12589227 or 12622033 if you are thinking about boost. __________________ *'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING* MY BUILD THE H8RDCPTR //\\ MY YOUTUBE CHANNEL REV J HD

02-05-2013, 07:45 AM	#3
mcmlxix Collector of Projects Join Date: Apr 2003 Location: Las Vegas Posts: 3,106	Re: 6.0 lq4 head gasket question Maybe you already know, Maybe I'm wrong, but pulling the heads to check means new torque to yeild heads bolts... __________________ Rich 1972 K5 Blazer CST Click HERE D60 BIG BRAKE UPGRADE Click HERE

02-05-2013, 11:45 AM	#4
Jon01 Registered User Join Date: Nov 2012 Location: West Des Moines, Iowa Posts: 450	Re: 6.0 lq4 head gasket question You're not wrong. Replace the head bolts as well. If you're not planning on f/i or n2o OEM bolts are cheap and work fine.

02-05-2013, 08:22 PM	#6
Jon01 Registered User Join Date: Nov 2012 Location: West Des Moines, Iowa Posts: 450	Re: 6.0 lq4 head gasket question You might be able to get them cheaper at Texas Speed and they probably have them in stock. http://www.texas-speed.com/p-205-gm-...er-gasket.aspx http://www.texas-speed.com/p-1697-gm...-per-head.aspx How big a hit do you plan on putting on it? Under 150 and I'd say stock bolts are a-ok. I've seen folks push more down em but that's all I'd recommend. __________________ 64 Biscayne - 230/PG, Accuair E-Level, 18/20 Bonneville C's. 68 Charger R/T - #'s matching 440/auto car, 499/727/3.91. 68 GTX - 440/4-speed, Dana 60. 44,000 miles. 71 SWB C10 - LQ4+S476r 06 Duramax - LBZ - Exhaust, EFI Live, etc...

02-05-2013, 08:26 PM	#7
Dustytrix Registered User Join Date: Jan 2012 Location: Petal,Ms. Posts: 428	Re: 6.0 lq4 head gasket question Summit has them type in the number above, they also price match. I just ordered a set from summit 34.00 each.

02-05-2013, 08:56 PM	#8
Jon01 Registered User Join Date: Nov 2012 Location: West Des Moines, Iowa Posts: 450	Re: 6.0 lq4 head gasket question Even better! That's CHEEP!

02-05-2013, 09:32 PM	#9
low69chevy Registered User Join Date: Jul 2011 Location: edinburg tx Posts: 174	Re: 6.0 lq4 head gasket question On the head bolts look into the arp bolts you can get them on ebay and several websites for around 140 bucks but theyre reusable I've had mine for several yrs and havn't had any problems. Check gmpartsdirect for the head gaskets they might be cheaper havn't checked in a long time Posted via Mobile Device

02-05-2013, 10:01 PM	#10
Dustytrix Registered User Join Date: Jan 2012 Location: Petal,Ms. Posts: 428	Re: 6.0 lq4 head gasket question I got the price match from gmperformancemotor.com They have good price but slow shipping

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.