Header Install
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Joined: May 2006
Posts: 94
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From: Colorado
Header Install
Hey Guys and Gals- I’m getting ready to start a long tube header install and LS6 intake swap. Is it easier to install the headers with the intake removed, or does it matter? I’m looking at using either ARP stainless or Stage8 locking header bolts (at twice the cost). Either one needs to be 3/4 inches long, correct?
Drifting
Joined: Jun 2004
Posts: 1,305
Likes: 515
From: Gilbert, Arizona Currently Own: 1998 Coupe YouTube: My Corvette Life
As stated above, the intake manifold is not an obstruction for the headers. I actually just installed a seton my buddy's car last weekend.
Depending on what set you got, they may install from the bottom or form the top. Mine are Kooks, and they go in from the top.
On the driver's side, you will need to remove the alternator, disconnect the steering shaft, and possibly remove the coil packs/bracket from the valve cover. You will also need to unbolt both engine mounts from the bottom of the from cradle. Jack up each side of the engine to allow more room to slide the headers in.
Passenger side you will do the same. Get as much of a vertical angle sliding them in as you can. The starter will be your biggest obstruction, but you can get it past.
I also use the stock bolts. They always seem to fit better than any aftermarket bolts.
Depending on what set you got, they may install from the bottom or form the top. Mine are Kooks, and they go in from the top.
On the driver's side, you will need to remove the alternator, disconnect the steering shaft, and possibly remove the coil packs/bracket from the valve cover. You will also need to unbolt both engine mounts from the bottom of the from cradle. Jack up each side of the engine to allow more room to slide the headers in.
Passenger side you will do the same. Get as much of a vertical angle sliding them in as you can. The starter will be your biggest obstruction, but you can get it past.
I also use the stock bolts. They always seem to fit better than any aftermarket bolts.
Last edited by Chris Draper; Sep 24, 2019 at 04:37 PM.
1st Gear
Joined: Sep 2019
Posts: 1
Likes: 0
Above is not exactly true. The new model kooks go in from the bottom easily without much work. It was a recent design change because customers were complaining. I would give the manufacturer a call and/or make sure you have the most up to date directions.
Last edited by Vettes4life!; Sep 24, 2019 at 04:41 PM.
Drifting
Joined: Jun 2004
Posts: 1,305
Likes: 515
From: Gilbert, Arizona Currently Own: 1998 Coupe YouTube: My Corvette Life
As I said, depends on which ones you get....
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Team Owner
Joined: Sep 2002
Posts: 29,888
Likes: 4,538
From: Bonita Springs, Florida
Install Kooks and you will have no issues. They go right in from the bottom.
Intermediate
Joined: Oct 2015
Posts: 49
Likes: 5
From: Minneapolis MN
LG longtubes install on jack stands. Driver side went in from bottom and passenger in from top after removing valve cover. Many have said both sides can slide in from bottom, but this was not the case for mine on the pass... should’ve just removed valve cover right away and slid in from top. Good luck!