6.0L THIN head gaskets
6.0L THIN head gaskets Is there a head gasket set that is thinner than stock to boost the CR a tad?? I know they exist for the LS1, but do they for the 6.0L ???
thanks in advance
RAT
thanks in advance
RAT
well Im having built right now a 423 iron 6.0 liter block and 6.0 liter heads and I bought the felpro 1041. gaskets they are 4.135 bore and .41 compressed. they better work on the 6.0 liter heads
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
Originally Posted by 1fstTA
well Im having built right now a 423 iron 6.0 liter block and 6.0 liter heads and I bought the felpro 1041. gaskets they are 4.135 bore and .41 compressed. they better work on the 6.0 liter heads
Launching!
Joined: May 2003
Posts: 200
Likes: 0
Originally Posted by 1fstTA
well Im having built right now a 423 iron 6.0 liter block and 6.0 liter heads and I bought the felpro 1041. gaskets they are 4.135 bore and .41 compressed. they better work on the 6.0 liter heads
Using cometic now you can see the difference
so the LS6 gasket will suffice for the 6.0 liter bore of 101.6 mm even though the LS6 bore is 99mm??
if yes, then I guess the bore of the gasket isnt exact to the bore of the cylinder
thanks
RAT
if yes, then I guess the bore of the gasket isnt exact to the bore of the cylinder
thanks
RAT
yes they have been used and are sufficient for a 4.030 bore. Its close, but it works just fine with a FATTY shot of nitrous 
the bore size of the gasket is always a little bigger than the hole. How much depends on the gasket maker.
the bore size of the gasket is always a little bigger than the hole. How much depends on the gasket maker. 
On The Tree
Joined: Dec 2002
Posts: 173
Likes: 5
From: Flower Mound, TX
actually, the ZO6 gaskets bore size is right around the 4" size, but I don't think they can accomodate a bore size above 4"... But I do use them on 3.905 bores all the time. They come out to be .047" crushed, although I've 'discussed/debated' this with Scoggin Dickey several times... the advertized crush is .065ish, but every time on the mic, they come out to .047 +-.001 Personally, I'll believe the measurments that I can actually see and check over advertised specs anyday....
The 6.0L gaskets are different than the ZO6 gaskets in that they have a larger bore, and these are the ones that can accomodate the 4.030 bore size, and probably even a 4.060 too. I haven't mic'ed a set of these crushed lately, but the last mic I did was on a set that had been preveiously crushed, and then removed from the motor, and my mic read in the .034ish range... although thats not the best/most accurate measurement method, so don't quote me on saying that's the final actual crush... I would assume it to be closer to the ZO6/LS6 gaskets thickness since they are the same design and each of the 3 layers is the same thickness and material type...
the GM part number for an idivudiual LS6 gaskets is 12573949 (they are identical/interchangeable from side to side)
The part number for a pair is 12498544
I have the pN for the 6.0 gaskets somewhere, just cant' find it at the moment...
The 6.0L gaskets are different than the ZO6 gaskets in that they have a larger bore, and these are the ones that can accomodate the 4.030 bore size, and probably even a 4.060 too. I haven't mic'ed a set of these crushed lately, but the last mic I did was on a set that had been preveiously crushed, and then removed from the motor, and my mic read in the .034ish range... although thats not the best/most accurate measurement method, so don't quote me on saying that's the final actual crush... I would assume it to be closer to the ZO6/LS6 gaskets thickness since they are the same design and each of the 3 layers is the same thickness and material type...
the GM part number for an idivudiual LS6 gaskets is 12573949 (they are identical/interchangeable from side to side)
The part number for a pair is 12498544
I have the pN for the 6.0 gaskets somewhere, just cant' find it at the moment...
