Using converted LT1 intake with GM FastBurn Heads
Le Mans Master
Joined: Oct 2008
Posts: 9,758
Likes: 49
From: Houston Texas
You guys are getting hung up on LT1 VS LT4. We are talking about vortec heads here. A little confusing.
Last edited by ch@0s; Jul 8, 2013 at 07:27 PM.
Le Mans Master
Joined: Oct 2008
Posts: 9,758
Likes: 49
From: Houston Texas
what we are forgetting about here is the LT4 intake has more material to mate with the larger ports on the LT4 head that the Fastburn head was modeled after.
Team Owner
Joined: Aug 2004
Posts: 21,543
Likes: 3,216
From: Park City Utah
Good pics. SO....
If the LT1 and LT4 have the same intake runner location and dimensions, and the LT4 head port is .1" taller (than the LT1 head), then there must be a mis-match between a stock LT4 intake and head. Yes? No?
If the LT1 and LT4 have the same intake runner location and dimensions, and the LT4 head port is .1" taller (than the LT1 head), then there must be a mis-match between a stock LT4 intake and head. Yes? No?
Le Mans Master
Joined: Oct 2008
Posts: 9,758
Likes: 49
From: Houston Texas
Oh, and that is what STL94LT1 was telling you guys all along.
Those pictures came from his link.
Last edited by ch@0s; Jul 8, 2013 at 08:25 PM.
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Team Owner
Joined: Aug 2004
Posts: 21,543
Likes: 3,216
From: Park City Utah
Sorry. It was people like this guy...
...who were f'ing me up. His claims, plus the GS Reg site is self contradicting too; They say the ports are the same, then they say that the LT4 won't work on LT1 head b/c the "ports won't match". So WTF? How can the ports not match if they are the same size in the same place?? I hope that you can see my confusion, and desire to have a full understanding of the situation.
...who were f'ing me up. His claims, plus the GS Reg site is self contradicting too; They say the ports are the same, then they say that the LT4 won't work on LT1 head b/c the "ports won't match". So WTF? How can the ports not match if they are the same size in the same place?? I hope that you can see my confusion, and desire to have a full understanding of the situation.
Last edited by Tom400CFI; Jul 9, 2013 at 10:51 AM.
