Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

Header Install

Thread Tools
 
Search this Thread
 
Old Aug 6, 2008 | 11:34 AM
  #1  
scp23's Avatar
Thread Starter
Teching In
iTrader: (1)
 
Joined: Apr 2008
Posts: 18
Likes: 0
From: Sav,Ga
Default Header Install

hey guys my buddy has a 99 formula and hes buying some hooker headers off ebay or goin with the hedmans from summit.. anyways we plan to do it without a lift... is there any great tips?? also should he get a new y pipe? hes got flowfaster exhaust now... thanks
Reply
Old Aug 6, 2008 | 12:06 PM
  #2  
conan's Avatar
TECH Senior Member
20 Year Member
iTrader: (5)
 
Joined: May 2004
Posts: 6,492
Likes: 6
From: Back in the Burg
Default

He will need to get a new y pipe. the oem y pipe will not work with headers. also get new gaskets from GM, dont use paper ones. When you install them get the car jacked up and on stands as high as you can. it wont be to hard. Change the spark plugs when you have the manifolds off very easy to do then.
Reply
Old Aug 6, 2008 | 12:21 PM
  #3  
Damian's Avatar
LSX Mechanic
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (89)
 
Joined: Nov 2001
Posts: 10,396
Likes: 15
From: Atlanta
Default

First thing you need to tell your buddy is to **** can that Flowmaster and buy a muffler that actually flows well.

I wouldn't get the car too high up on jack stands, because you'll cause yourself problems trying to lean over the fender and work. If you've got two jacks, I would recommend just jacking up each side of the car with it's own individual jack, set the height you need to do what you're doing, and then when you're ready to work under the hood again, lower your jacks down to the desired level. Kinda like a ghetto lift system.

To break it down simple..

-Go ahead and pop off the stock Ypipe first. The bolts on the manifold are 15mm, and will probably have to be snapped off unless you're using an impact gun. Most of the time they're rusted and won't turn well with a ratchet.
-Take the coil packs off the car. Makes a word of difference for reaching in there
-Change the plugs while you're in there, as they have to be removed anyway
-Take your dipstick out, 15mm bolt on the side of the pass. head. Makes things a lot easier. Just make sure to have some help with lining it back up when you reinstall it.
-To give yourself more room and to not beat the hell out of the header on the drivers side getting it in, remove the steering knuckle. It's two 7/16 bolts, that are easily accessible. This will give you a world of room to slide the header right in with no interruptions
-Yes you will need an aftermarket Ypipe
-Where some types of tight fitting mechanics gloves if you can. The cowl is sharp and will rip your hands apart
-Don't forget you will need 02 extensions to plug in the front 02's *DO NOT plug them in to the back harness just because they're closer *
-Good luck


PS- I'm right up the road if you guys throw in the towel and don't wanna do it
Reply




All times are GMT -5. The time now is 04:38 AM.

story-0
10 Reasons Daily Driving a Swap Project SUCKS! (& 1 Reason to Do It Anyway)

Slideshow: 10 reasons daily-driving a swap project might not be for you. Or is it?

By Michael S. Palmer | 2026-06-17 09:39:05


VIEW MORE
story-1
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-09 14:55:56


VIEW MORE
story-2
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-06-18 10:26:23


VIEW MORE
story-3
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-4
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-5
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-6
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-7
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-8
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-9
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE