Head gaskets - LT4 (dealer or ?)
Race Director
Joined: Jul 2000
Posts: 11,007
Likes: 1
From: Probably in the paint booth....
Re: Head gaskets - LT4 (tdock)
I putting mine back together with the LT1 Impala head gaskets. I decided on that after talking with several people on the LT1edit mail group.
Just FYI
Neal
Just FYI
Neal
Safety Car
Joined: Jun 1999
Posts: 3,570
Likes: 3
From: Austin, Singapore, Kuala Lumpur, Houston, Dallas, Hong Kong, Elgin, etc.. Texas
Re: Head gaskets - LT4 (tdock)
I believe the question is about head gaskets not intake manifold gaskets. P/N 12367777 is the intake manifold gasket.
I understand the LT1 head gasket is approximately .010" thinner than the stock LT4 head gaskets. This increases the compression and combustion chamber squish/turbulance. However, I am not sure it this is a good thing for the already high LT4 compression. Anybody do this?
I understand the LT1 head gasket is approximately .010" thinner than the stock LT4 head gaskets. This increases the compression and combustion chamber squish/turbulance. However, I am not sure it this is a good thing for the already high LT4 compression. Anybody do this?
Team Owner
Joined: Mar 2000
Posts: 83,383
Likes: 87
From: Boston, MA
"GM has 2 different sets of intake gaskets for the LT4, the stock ones (P/N 12528884) and the "Performance Parts" ones (P/N 12367777). The ones with the larger ports are the GM Performance Parts gaskets. I got mine from Jeff Kopp for something like $14.69 each, you'll need two. I used Felpro for most of the other gaskets, but GMPP for the intake."
Le Mans Master
Joined: Sep 2001
Posts: 7,928
Likes: 1
From: More cowbell...
St. Jude Donor '04
Re: (ericcer)
I would go with fel-pro.. they seem to be the strongest (and most expensive) of the gasket brands.. Just make sure you get the right set.. I was sold a set of Chevy Small Block Fel-Pros.. not right..
-Mark
-Mark
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Thread Starter
Drifting
Joined: Jul 2001
Posts: 1,296
Likes: 0
From: Largo Florida
Re: (RichS)
Do you recall if Felpro gaskets are the same for LT1/4? Autozone list one Felpro but NAPA (their own brand) list two for 1996. I trust you guys more than some Autozone counter help.
