Intake Manifold Question
Thread Starter
Burning Brakes
Joined: Jan 2006
Posts: 788
Likes: 105
From: Olathe Kansas
Intake Manifold Question
I have a 2000 Vert.
I am thinking about upgrading to the 2001+ LS6 Style Intake Manifold.
My question is: Is the Dorman Products Replacement Manifold
listed for 2002 Vette the same?? Or is "my" old
Style Intake Manifold???
Is is Part #615900
I am thinking about upgrading to the 2001+ LS6 Style Intake Manifold.
My question is: Is the Dorman Products Replacement Manifold
listed for 2002 Vette the same?? Or is "my" old
Style Intake Manifold???
Is is Part #615900
That thing looks like crap. 
.
Joined: Apr 2013
Posts: 5,042
Likes: 1,157
From: Oregon
St. Jude Donor '14-'15-'16-'17-'18-'19-'20-'21-'22-'23
The for sale section here or ls1tech has them there also
Drifting
Joined: Mar 2013
Posts: 1,496
Likes: 353
From: Little Rock Arkansas
The Dorman reproduction is becoming a popular item, particularly among those with 4th Gen F-bodies that have an LS1 that want a cost effective upgrade. It composition is basically a FAST 78mm lower with an LS6-style upper.
It has been tested quite a bit and the general consensus is that it performs better than the LS1 manifold but is slightly down on power gains from an actual LS6 manifold swap. There have been some questions on product quality, particularly in where one sources it from, as some buyers have had issues with pieces of intake runner gasket material broken or wedged in odd places.
It is hard to pass it up though. With the prices that some used LS6 manifolds go for one could get the Dorman piece new at near the same price.
It has been tested quite a bit and the general consensus is that it performs better than the LS1 manifold but is slightly down on power gains from an actual LS6 manifold swap. There have been some questions on product quality, particularly in where one sources it from, as some buyers have had issues with pieces of intake runner gasket material broken or wedged in odd places.
It is hard to pass it up though. With the prices that some used LS6 manifolds go for one could get the Dorman piece new at near the same price.
