Buying an LT1 intake, any diff in castings?
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From: LA/SD, CA
Buying an LT1 intake, any diff in castings?
I have a 96 ws6. I need to fix the intake oil leak. I was planning on buying an lt1 intake ($40 local) and having it powdercoated, then installing that intake on my car to minimize downtime. Are there any real differences between casting numbers from 94-94?
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Joined: Feb 2004
Posts: 4,800
As mentioned the early castings lack the fuel rail crossover, avoid those and you will be fine.
The LT4 intake does NOT I repeat does NOT have taller ports. The heads do but the intake internally is the same as some of the LT1 intakes, just has more material above the port wehich will interfere with the LT1 head valvecover rail.
Among the probably 2-3 castings that are LT1 and have the fuel rail crossover the differences are not anything to get worked up over, they will all work for you.
The LT4 intake does NOT I repeat does NOT have taller ports. The heads do but the intake internally is the same as some of the LT1 intakes, just has more material above the port wehich will interfere with the LT1 head valvecover rail.
Among the probably 2-3 castings that are LT1 and have the fuel rail crossover the differences are not anything to get worked up over, they will all work for you.
Registered User
Joined: Sep 2002
Posts: 3,456
As mentioned the early castings lack the fuel rail crossover, avoid those and you will be fine.
The LT4 intake does NOT I repeat does NOT have taller ports. The heads do but the intake internally is the same as some of the LT1 intakes, just has more material above the port wehich will interfere with the LT1 head valvecover rail.
Among the probably 2-3 castings that are LT1 and have the fuel rail crossover the differences are not anything to get worked up over, they will all work for you.
The LT4 intake does NOT I repeat does NOT have taller ports. The heads do but the intake internally is the same as some of the LT1 intakes, just has more material above the port wehich will interfere with the LT1 head valvecover rail.
Among the probably 2-3 castings that are LT1 and have the fuel rail crossover the differences are not anything to get worked up over, they will all work for you.
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Joined: Feb 2004
Posts: 4,800
http://i85.photobucket.com/albums/k5...1/DCP_1456.jpg
GIZMO from over on LS1tech was good enough to share this with the community.
GIZMO from over on LS1tech was good enough to share this with the community.
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