LT1 Head Gasket thickness ?
Thread Starter
Le Mans Master
Joined: Apr 2000
Posts: 5,713
Likes: 105
From: Manassas VA
LT1 Head Gasket thickness ?
I understand that you can purchase a fel-pro head gasket that has a thickness of .039 . Is the factory gasket .049 ? Also, I understand the impala gasket is .029. If all of this is true, would there be any problems with using the impala gasket and a hot cam? And is the dealer the best source for the impala gasket?
Race Director
Joined: Jan 2002
Posts: 12,263
Likes: 86
From: O'Fallon Missouri
Re: LT1 Head Gasket thickness ? (93 ragtop)
The Impalla SS head gaskets will give you an additional .5 compression. They work great on my car, I would highly recommend.
Imp SS head gasket part # 12553160
Call Chris May at Superior Chevrolet, he'll hook you up.
(800) 728-8267
Imp SS head gasket part # 12553160
Call Chris May at Superior Chevrolet, he'll hook you up.
(800) 728-8267
Thread Starter
Le Mans Master
Joined: Apr 2000
Posts: 5,713
Likes: 105
From: Manassas VA
Re: LT1 Head Gasket thickness ? (STL94LT1)
The Impalla SS head gaskets will give you an additional .5 compression. They work great on my car, I would highly recommend.
Imp SS head gasket part # 12553160
Call Chris May at Superior Chevrolet, he'll hook you up.
(800) 728-8267
Imp SS head gasket part # 12553160
Call Chris May at Superior Chevrolet, he'll hook you up.
(800) 728-8267
Racer
Joined: Oct 2001
Posts: 466
Likes: 27
From: Hendersonville tn
Re: LT1 Head Gasket thickness ? (93 ragtop)
Stock LT1 gasket is .050". Stock cc size is 54 cc, stock deck height will be about .022-.025", and the valve relief pockets are -5cc.
There is a good calculator here.
http://www.syty.org/old/calculator.html
There is a good calculator here.
http://www.syty.org/old/calculator.html
Burning Brakes
Joined: Oct 2002
Posts: 1,152
Likes: 1
From: Wichita KS
Re: LT1 Head Gasket thickness ? (BryanC)
:iagree:
Mr Gasket is also making an LT series head gasket now, I believe it is .026 compressed, and Cometic makes one that measures .020, double check my numbers, but they are very close.
I've seen the LT series combustion chambers rated from 54.4 CC - 56.0 CC, I used a large syringe and measured 53 CC, on my LT4 heads, I'll know what a professional burette setup measures in CC's tomorrow....
Mr Gasket is also making an LT series head gasket now, I believe it is .026 compressed, and Cometic makes one that measures .020, double check my numbers, but they are very close.
I've seen the LT series combustion chambers rated from 54.4 CC - 56.0 CC, I used a large syringe and measured 53 CC, on my LT4 heads, I'll know what a professional burette setup measures in CC's tomorrow....
