Lt1 -93 or 94-97 intake manifold

[Rick.H]

I have a -93 Lt1 intakemanifold and a -97 intake, witch intake should I use on my stock b/sa Camaro?

[GUMP]

Originally Posted by Rick.H

I have a -93 Lt1 intakemanifold and a -97 intake, witch intake should I use on my stock b/sa Camaro?

I prefer the 1997.

[Dan Fahey]

Originally Posted by GUMP

I prefer the 1997.

What are the differences between them?

D

[Rick.H]

Lt1 -93 intake casting nb 10208145 has no crossover pipe between fuilrails behind map so it has straight inner roof.
Rectangular ports with injectors located straight pointing to head intakerunner

Lt1 -94-97 intake has a crossover pipe between fuilrails behind map and create a small bumb on the inner roof just after Tb.
Ports match more or less to the head and sized as the head intake runners+injectors are angeld against intake valve.

You can see a few -93 intake on 93-98 f-body so i just wonder if missed something.

[GUMP]

Actually there are three different LT1 intakes.

The 1992-93 intake (10208145) has no fuel crossover and rectangular ports. If you run this I would modify some of the later fuel rails.

The 1994-1996 (10106830) intake has a fuel crossover and rectangular ports.

The 1997 (12552138) has a fuel crossover and ports that almost match the head.

Some comparison photos. The red intake is an LT4.

[Rick.H]

The 12552138 intake is the way to go if you locking on port shape and the injector angeld against intake valve.

I have the 630 intake on my camaro so i might change.

You can find the 138 intake on the -96 f-bodys as well.

[GUMP]

Originally Posted by Rick.H

The 12552138 intake is the way to go if you locking on port shape and the injector angeld against intake valve.

I have the 630 intake on my camaro so i might change.

I feel it is worth changing........

[Rick.H]

Ok i get it.