C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

FLP Headers Installation Question

Thread Tools
 
Search this Thread
 
Old Aug 30, 2002 | 11:05 PM
  #1  
7LitreC5's Avatar
7LitreC5
Thread Starter
Le Mans Master
Supporting Lifetime
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2001
Posts: 5,473
Likes: 717
From: Black Forest CO
Default FLP Headers Installation Question

I started my FLP header installation today. I got everything apart, got the passenger side header on, and then ran out of time.

When I get back at it I am going to put the driver's side header on. The instructions say that it can be installed from the top or the bottom. Which is easier? I already have the valve cover off, alternator off, and the steering bolt out with the shaft moved over up against the frame. I am doing the install with the front on ramps and the back on jack stands. The car is a MN6 car if it matters.

I am doing this by myself and the installation really is not as difficult as I thought it would be.

One other question. Should the header to head bolts be torqued to the same spec as the stock manifolds?

Thanks.
Reply
Old Aug 30, 2002 | 11:19 PM
  #2  
Bill Reid's Avatar
Bill Reid
Le Mans Master
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Nov 2000
Posts: 7,391
Likes: 3
From: Chandler AZ
Default Re: FLP Headers Installation Question (mforbes)

Drop the oil filter and stab it from the top :)

(edit) at home now... don't have FLP instructions in front of me for torque specs. Stock torque specs would be the safe bet from the chair I'm sitting in :)

:cheers:


[Modified by billreid1@***.net, 9:21 PM 8/30/2002]
Reply
Old Aug 31, 2002 | 12:23 AM
  #3  
Black_Magic's Avatar
Black_Magic
Safety Car
Veteran: Air Force
25 Year Member
All Eyes On Me
Liked
 
Joined: Jun 2000
Posts: 4,711
Likes: 552
From: St. Louis MO
2020 Corvette of the Year (appearance mods)
C2 of Year Winner (appearance mods) 2019
CI 4-5-7-9-10-11 Car Show Winner
CI 2-3-4-5-6-7-9-10-11 Vet
Default Re: FLP Headers Installation Question (mforbes)

I did the drivers side from the bottom :) :)

Here is some pics of my install Click Here

Good Luck :) :)



[Modified by Black_Magic, 10:23 PM 8/30/2002]
Reply
Old Aug 31, 2002 | 08:13 PM
  #4  
7LitreC5's Avatar
7LitreC5
Thread Starter
Le Mans Master
Supporting Lifetime
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2001
Posts: 5,473
Likes: 717
From: Black Forest CO
Default Re: FLP Headers Installation Question

Thanks for the info and the link to the pictures!
Reply
Old Aug 31, 2002 | 11:38 PM
  #5  
kh24's Avatar
kh24
Drifting
20 Year Member
 
Joined: Aug 2001
Posts: 1,903
Likes: 0
From: Oakhurst NJ
Default Re: FLP Headers Installation Question (mforbes)

I got mine in from the top. I tried the bottom but couldnt get it. I did not have to take off the alternator or the oil filter though. I unbolted the steering shaft and then twisted the header in. One tap of the hammer and it dropped into place. FLP told me on the phone to just make the bolts tight by hand(no air tools)and not to worry too much about the spec which is 18 ft. lbs. if you where wondering.
Reply
Old Sep 2, 2002 | 10:30 PM
  #6  
7LitreC5's Avatar
7LitreC5
Thread Starter
Le Mans Master
Supporting Lifetime
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2001
Posts: 5,473
Likes: 717
From: Black Forest CO
Default Re: FLP Headers Installation Question

When I went back at it today, the drivers header mostly just fell into place from the top once I removed the oil filter. I found when I went to bolt the header up to the head, the header flange was warped outward. When I tightened the bolts it drew it up to the head and it looks ok. It better not leak!

I should finish it up tomorrow. I would have been done this evening but the header kit did not provide bolts/nuts to bolt the x-pipe to the cat-back. The flange on my stock intermediate pipe is threaded and therefore does not use nuts.
Reply
Old Sep 2, 2002 | 10:45 PM
  #7  
kp's Avatar
kp
Melting Slicks
15 Year Member
 
Joined: May 2001
Posts: 2,596
Likes: 120
From: East Tennessee
Default Re: FLP Headers Installation Question (mforbes)

When I went back at it today, the drivers header mostly just fell into place from the top once I removed the oil filter. I found when I went to bolt the header up to the head, the header flange was warped outward. When I tightened the bolts it drew it up to the head and it looks ok. It better not leak!

I should finish it up tomorrow. I would have been done this evening but the header kit did not provide bolts/nuts to bolt the x-pipe to the cat-back. The flange on my stock intermediate pipe is threaded and therefore does not use nuts.
Use the nuts from the stock exhaust manifold studs and the stock bolts from the exhaust flange..
Reply

Get notified of new replies

To FLP Headers Installation Question





All times are GMT -4. The time now is 04:53 AM.

story-0
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-1
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-2
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-3
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-4
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-5
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-6
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-7
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-8
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-9
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE