Head Gasket Question

**aquickfive0** · 09-23-2006, 03:28 AM

i have a 2002 trans am ws6 with a sts turbo

i am putting 6.0 heads on the ls1 and i am wondering which fel pro head gasket to use? and which valve cover gasket

***Ed Blown Vert*** · 09-23-2006, 06:46 AM

I would use the GM MLS 6.0 head gasket.

**Eric@VictoryRacing** · 09-23-2006, 08:34 AM

I agree 100%. The GM MLS gasket will be fine for that application.

Originally Posted by Ed Blown Vert

I would use the GM MLS 6.0 head gasket.

**aquickfive0** · 09-24-2006, 04:23 AM

any1 know the model number of that 1 or the fel pro 1?

remember turbo application

**mrr23** · 09-24-2006, 07:32 AM

do not use the felpro 1041. the bore size is way too large. even for a 6.0L bore of 4.00". you need to use the head gasket for the LS1 motor as your cylinder diameter hasn't changed (3.898). get the 2003 MLS gasket for a LS1, not a 6.0L.

Felpro 1041 Summit Racing

Bore = 4.135"
Compressed Thickness = .041"

4.135 - 3.898 = .237" open area

what can happen is carbon gets built up in this area and can cause detonation.

now, looking on mrgasket website, they have a MLS gasket thats 4.060" diameter with a compressed thickness of .054". 3143G it says for 98-00 LS1. i know there was something about a notch needed for the older blocks. i'll try to look into it more later.

**aquickfive0** · 09-24-2006, 10:11 AM

i see pic u have 11.4 @ 119 i was doin 12.6 @ 114 with 5lbs goin up to 8 lbs on turbo

**mrr23** · 09-24-2006, 07:32 PM

just add a nice 50 shot of n2o.

**aquickfive0** · 10-13-2006, 05:02 PM

link me to a site to buy that gasket and price? cant figure which 1 that is, which part number

**aquickfive0** · 10-13-2006, 05:04 PM

which arp bolts would you use also what part number from summitt

**mrr23** · 10-13-2006, 07:44 PM

look at the underline numbers in my post. they are links.

Originally Posted by aquickfive0

link me to a site to buy that gasket and price? cant figure which 1 that is, which part number

Originally Posted by mrr23

do not use the felpro 1041. the bore size is way too large. even for a 6.0L bore of 4.00". you need to use the head gasket for the LS1 motor as your cylinder diameter hasn't changed (3.898). get the 2003 MLS gasket for a LS1, not a 6.0L.

Felpro 1041 Summit Racing

Bore = 4.135"
Compressed Thickness = .041"

4.135 - 3.898 = .237" open area

what can happen is carbon gets built up in this area and can cause detonation.

now, looking on mrgasket website, they have a MLS gasket thats 4.060" diameter with a compressed thickness of .054". 3143G it says for 98-00 LS1. i know there was something about a notch needed for the older blocks. i'll try to look into it more later.

**mrr23** · 10-13-2006, 07:46 PM

Originally Posted by aquickfive0

which arp bolts would you use also what part number from summitt

ARP134-3610

i noticed you are in cocoa beach. i just got home from there. was over at the target in merritt island picking up some halloween decorations for the yard.