Are all LT1 intakes the same?
Originally posted by GUMP
The 92-93 intakes do not have provisions for the fuel cross over at the front of the fuel rails like the later manifolds.
There are also two different 94-97 intake designs. The ports are much different on the later intakes.
Daren
The 92-93 intakes do not have provisions for the fuel cross over at the front of the fuel rails like the later manifolds.
There are also two different 94-97 intake designs. The ports are much different on the later intakes.
Daren
Originally posted by anaik
It screws into the block, not the intake.
It screws into the block, not the intake.
ok so i have posted the casting number from the passenger side, my fuel rail crossover is in the front and i KNOW FOR A FACT that my oil pressure sending unit is behind this intake and my engines intake. so will what i have fit on my 1994? and will there be any adverse affects?
PB
PB
Originally posted by GUMP
The 92-93 intakes do not have provisions for the fuel cross over at the front of the fuel rails like the later manifolds.
There are also two different 94-97 intake designs. The ports are much different on the later intakes.
The early intakes have symetrical ports, the later ones do not.
Daren
The 92-93 intakes do not have provisions for the fuel cross over at the front of the fuel rails like the later manifolds.
There are also two different 94-97 intake designs. The ports are much different on the later intakes.
The early intakes have symetrical ports, the later ones do not.
Daren
The later intakes more closely (improved) match up to the port shape in the LT1 heads. The original LT1 head/intake matchup was a screwup. It wasn't their first, and don't expect it to be their last. I find it a mild surprice they actually allocated the funds for the change. But then again, the change was about the time the LT4 intake cast was made. (The later LT1 intake is a whole lot closer to the LT4 intake than many realize). My guess is, they (GM) would not have bothered with the change had the LT4 intake not become a reality.
Originally posted by turbo_Z
.. differences between the 2 are unknown to me but i have looked into this and people told me they are the same. i sure as fck hope they are the same!! i put a 95 intake on my 97 heads.
.. differences between the 2 are unknown to me but i have looked into this and people told me they are the same. i sure as fck hope they are the same!! i put a 95 intake on my 97 heads.

The diff is pretty obvious. My guess is that you'd have noticed it, if it were diff from the head ports.
Last edited by arnie; Jun 13, 2003 at 08:46 PM.
Originally posted by PoorMan
Well, I know that the 93z's were not sequential injection. That started in 94. So their is a difference.
Jeff D
Well, I know that the 93z's were not sequential injection. That started in 94. So their is a difference.
Jeff D
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