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LT1/4 intake remove and install guide

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Old Feb 7, 2008 | 12:13 PM
  #1  
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From: Grand Sport #82
Default LT1/4 intake remove and install guide

I my LT4 is leaking oil form the front and rear of the intake, which I heard is pretty common.

How big a job is it to remove the intake, re seal, and re install the intake on these cars?

Anybody have pictures of the process?
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Old Feb 7, 2008 | 12:52 PM
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It's not hard at all. I might have pictures on my hard drive. I'll check when I get home.

The most important thing would be to torque the intake correctly to provide even pressure and prevent leaks.
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Old Feb 7, 2008 | 01:35 PM
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Should be a cakewalk compared to the L98 Superram you had.
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Old Feb 7, 2008 | 01:35 PM
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Originally Posted by Bluewasp
The most important thing would be to torque the intake correctly to provide even pressure and prevent leaks.
The most important thing is to clean all the oil/grease off the intake manifold and on the block where they mate. The prep work takes longer than the actual tearing into and replacing. I think it took me about 4 hrs with my brother helping. Make sure to use at leat 3/16" RTV on the front and rear of the china wall. I would suggest using "The Right Stuff". Might as well leak test the injectors before buttoning everything up.

There are a couple of write ups on the internet if you search.
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Old Feb 7, 2008 | 01:54 PM
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An afternoon job. Two people work good to set back on and align. Just remember to take some photos of it and/or lable anything you disconnect.
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Old Feb 7, 2008 | 04:42 PM
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From: Grand Sport #82
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Originally Posted by Bluewasp
It's not hard at all. I might have pictures on my hard drive. I'll check when I get home.

The most important thing would be to torque the intake correctly to provide even pressure and prevent leaks.
sounds good...Pictures would be nice

What do i need to complete this:

Gaskets (2)
RTV for front and rear seal
seal for the bolts thread

other things?
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Old Feb 7, 2008 | 04:49 PM
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Originally Posted by Lars87
sounds good...Pictures would be nice

What do i need to complete this:

Gaskets (2)
RTV for front and rear seal
seal for the bolts thread

other things?
You'll be removing stuff like AIR, EGR, and the throttle body, so you might as well pick up those gaskets, since they're pretty cheap. Honestly, Disconnecting/removing everything attached to the manifold is a much harder job than actually removing it. Be sure to label everything and take pictures as you remove, so you can put everything back like it was. It's just 12 bolts and it's off. Be sure to look up the correct torquing sequence in the FSM!
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