ART T

I am trying to find a reasonably price exhaust manifold for my LS1/Chevy II swap. The car has a TCI clip on it. Would 1 5/8" block huggers hurt the performance that much? The car is pretty much a driver and a toy. Thanks

LS1 pwrd NOVA

iTrader: (2)

I can't recall what all fits with an aftermarket clip. What is your budget exactly? I don't think 1-5/8 would hurt if its a mostly stock engine. But if I wasn't going full length headers or some nice midlength like from church boys I'd just use stock manifolds for now. I have the church boys mid length n they are nice but still in the box....
Have you been on the nova web sight?
What year n do u have pics of your car/setup?

ART T

I have been doing a lot of research on this. The car is a 65 sedan with a TCI clip, 99LS1 with a 4L60e. I tried a set of GTO's, but they hit the frame rails.
From the pictures I have been looking at, I think 2010/11 Camaro manifolds will clear. And possibly 05/09 Trailblazer. I am not going to spend $400 + on a set of headers. Art

LS1 pwrd NOVA

iTrader: (2)

When you say they hit the frame rails. What exactly hit? If its the flanged part, people have cut it off and welded the band clamps to make work.
But your right I didn't want to spend a lot of money on headers myself but they were the only ones that fit a stock subframe.

ART T

It would take major surgery to make the goats fit. There is a weekly show tommorrow night and I hope one of the Camaro club members has something I can work with.

sierrac3_s2000

iTrader: (6)

You can also angle mill the mounting flange on the stock manifolds to tuck them tighter to the engine. I did this with CTS-V manifolds to fit them in a Supra. Worked great.

Novas Forever

Hedman shorties are what I used. They fit nearly perfect and they are coated. Not sure of the tubing size but my LS1 runs very fine with them, and they are not terribly expensive.

ART T

I have no problem angle milling them, but the GTO's stick out way too far.

sierrac3_s2000

iTrader: (6)

Try the CTS-V manifolds, they are pretty close to the block.

ART T

Not the easiest thing to find. I just ordered a 2010 SS set from Mandrel Bending Solutions.

Forcefed86

iTrader: (4)

the ls3 manifolds aren't to hard to find and hug close. Here is a set of block hugges installed as well.

Good luck!







block huggers...