header install q's
Thread Starter
On The Tree
Joined: Feb 2003
Posts: 114
Likes: 0
From: Bremerton, Wa
header install q's Me and a buddy spent 7 hours installing a set of BBK shorty headers onto his LT1 trans am. After we had everything buttoned down and fired it up I an exhaust leak on both sides. I upgraded and used the MR Gasket copper header gaskets and torqued them down as tight as I dared to go on those cheesy little bolts that BBK supplied me with. I was wondering if anyone out there has had this problem and has any input on what my next plan of attack should be for clearing up this exhaust problem.
Thread Starter
On The Tree
Joined: Feb 2003
Posts: 114
Likes: 0
From: Bremerton, Wa
I don't think there is any way I could have overtorqued them with a 3/8 box end wrench which happens to be the only thing that fits in there and also I noticed that there are two extra bolt holoes on each side and BBK supplied enough bolts to go in all of the holes am I supposed to utilize 8 bolts per side when factory only had 6???
Thread Starter
On The Tree
Joined: Feb 2003
Posts: 114
Likes: 0
From: Bremerton, Wa
well we put in the other 4 bolts and it seemed to help some, but it still leaks. What is kinda strange is after the engine warms up, it seemed to quiet down a bit. There isn't, like, some sort of wear in time or anything like that is there? The coating has burned off, so there is a little time on them but.... I don't know. Guess we'll just keep F'en with it.
Originally Posted by BLK,97,T/A,M-6
you may have them to tight, causing gaps to form between the header flange/gasket/head.
There should be torque specs on their website. thats where i would start.
There should be torque specs on their website. thats where i would start.
My BBKs sealed fine, i used the percys carbon fiber gaskets and they were just great, i have used the copper gaskets on my older 3rd gens and some lead a c hair but others seal fine. If you do leak a bit on my older f cars then it doesnt bother me due to the cam in the car being louder than the leak, but that is because the leak is verry verry small.
Trending Topics
Thread Starter
On The Tree
Joined: Feb 2003
Posts: 114
Likes: 0
From: Bremerton, Wa
ok well here is the deal, I backed off my headers and retorqued, changed the gasket in the drivers side cat, I had to cut 1 inch off of my y pipe because i did not cut enough off the first time and it was putting a lot of tension on my exhaust system. I still have a leak on the passengers side where I nedd to weld the pipe together because BBK supplied me with a POS band clamp and it needs to clamp on a bend so that wouldn't work anyways. The only problem I think I have now is it feels like I have lost power and it seems to misfire under load. I am going to change my wires in case I damaged one during the install but other than that does anyone have any input as to why it would run like **** now. Would the lasck of backpressure to one side make a difference???
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?
Pouria Savadkouei
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
