Another LT1 intake thread-need gasket #
Thread Starter
Team Owner
Joined: Oct 2004
Posts: 81,241
Likes: 3,063
From: altered state
St. Jude Donor '05
Another LT1 intake thread-need gasket #
For using an LT1 intake on a Gen 1 head. Noticed the LT1 intake ports are tall and skinny in comparison to the Gen 1. ....
What gaskets are you guys using. Is there an oversized one?
What gaskets are you guys using. Is there an oversized one?
Drifting
Joined: May 2004
Posts: 1,747
Likes: 0
From: Port McNicoll Ontario
I'm not sure if the LT1 gaskets will work because of the new cooling lines you added to the intake.
You will likely need the L98 gaskets.
Sorry, no part number. Someone who has done the swap should chime in. I've been collecting the parts for the swap for over a year now but haven't actually done the swap. I'm interested in the answer to your question as well.
You will likely need the L98 gaskets.
Sorry, no part number. Someone who has done the swap should chime in. I've been collecting the parts for the swap for over a year now but haven't actually done the swap. I'm interested in the answer to your question as well.
Team Owner
Joined: Mar 2001
Posts: 30,847
Likes: 293
From: Boston, Dallas, Detroit, SoCal, back to Boston MA
For an L98 AFR recommends Fel Pro 1205
http://www.popularhotrodding.com/tec...ls1/index.html
BTW just an FYI
http://www.popularhotrodding.com/tec...ls1/index.html
BTW just an FYI
It is easiest to start with a complete '94-'97 intake with fuel rails and regulator. Being the difficult type, I started with a '93 intake, which does not have a front fuel crossover and the rear of the rails interfere with the distributor if they are not shortened. After mocking the intake up a few times, I decided to add the front crossover to ensure sufficient fuel to all the injectors as it was going to be difficult to achieve the crossover in the rear. I also opted to use an Aeromotive adjustable fuel pressure regulator and plumb everything from the factory fuel hard lines with AN6 (3/8-inch) braided stainless hose. With the '94 to '97 intake it is possible to use the regulator and fabricate factory-style fuel lines to forego the aftermarket fuel setup.
Melting Slicks
Joined: Aug 2004
Posts: 2,906
Likes: 228
From: Oakbank Manitoba
The 1205 is the biggest that will fit and is the most popular to use. The 1204 is slightly too small for the LT1 stock ports. Some guys have tried the 1206 but not many have been used successfully without adding material to the manifold (welding).
Melting Slicks
Joined: Feb 2006
Posts: 2,753
Likes: 15
From: backwoods upstate ny
mr gasket 5821...$14/pr from summit, p/n MRG-5821.
5821 matches the lt1 intake...if your stock vette heads are not opened up to match the intake you can use p/n 5820 with minor trim without cutting into the seal.
5821 matches the lt1 intake...if your stock vette heads are not opened up to match the intake you can use p/n 5820 with minor trim without cutting into the seal.
