couple of header ?'s
Thread Starter
TECH Resident
Joined: Feb 2005
Posts: 900
Likes: 0
From: Valdosta Ga.
couple of header ?'s I am installing a pair of mac midlengths on my 93 Trans Am. I have heard a few times that the Fel Pro 1406 gaskets dont work with these headers. Is this true? What gaskets are best to go with for these headers?
Also, what are you guys doing about the bolt on the front most passenger side. It originally held a bracket for the alternator so it was a bolt with threads which had a nut that held the brace for the alternator. A regular header bolt wont work. Can I just buy one new? Thanks.
Also, what are you guys doing about the bolt on the front most passenger side. It originally held a bracket for the alternator so it was a bolt with threads which had a nut that held the brace for the alternator. A regular header bolt wont work. Can I just buy one new? Thanks.
I am installing a pair of mac midlengths on my 93 Trans Am. I have heard a few times that the Fel Pro 1406 gaskets dont work with these headers. Is this true? What gaskets are best to go with for these headers?
Also, what are you guys doing about the bolt on the front most passenger side. It originally held a bracket for the alternator so it was a bolt with threads which had a nut that held the brace for the alternator. A regular header bolt wont work. Can I just buy one new? Thanks.
Also, what are you guys doing about the bolt on the front most passenger side. It originally held a bracket for the alternator so it was a bolt with threads which had a nut that held the brace for the alternator. A regular header bolt wont work. Can I just buy one new? Thanks.
Not sure on what gasket you need. I bought a pair of copper gaskets that had the option of using either of the front two or last two bolt holes on the heads for the headers, so it worked perfectly.
Ditch the alternator bracket off the headers but I would keep the one on the intake, the fel-pros were designed as a factory replacement and they are provisioned for stock manifolds which use the outer bolts on the head so you have to either punch a hole in the gasket or I used Mr. Gasket Ultra-Seal. I have used their copper gasket with less than perfect results but their steel impregnated Ultra-Seal is an awesome gasket with no trimming or punching of holes required.
Perceys Aluminum crush gaskets!!!
http://www.jegs.com/i/Percy%26%23039...66031/10002/-1
Kinda expensive but well worth it as they don't leak at all and are reusable.
http://www.jegs.com/i/Percy%26%23039...66031/10002/-1
Kinda expensive but well worth it as they don't leak at all and are reusable.
Last edited by DAVE00; Jan 12, 2009 at 01:29 PM.
s-r-t-4
f-t-w
You will get a dumdumdum instead.
Same things without dashes:
dumdumdumdum
dumdumdum
camaro used to be one of them too I think. I don't know who programs it, but it's there. There are probably several more examples that I am not aware of.
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
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!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo Its an automatic thing. It changes every now and then. Right now I think if you type the words (without dashes):
s-r-t-4
f-t-w
You will get a dumdumdum instead.
Same things without dashes:
dumdumdumdum
dumdumdum
camaro used to be one of them too I think. I don't know who programs it, but it's there. There are probably several more examples that I am not aware of.
s-r-t-4
f-t-w
You will get a dumdumdum instead.
Same things without dashes:
dumdumdumdum
dumdumdum
camaro used to be one of them too I think. I don't know who programs it, but it's there. There are probably several more examples that I am not aware of.
Perceys Aluminum crush gaskets!!!
http://www.jegs.com/i/Percy%26%23039...66031/10002/-1
Kinda expensive but well worth it as they don't leak at all and are reusable.
http://www.jegs.com/i/Percy%26%23039...66031/10002/-1
Kinda expensive but well worth it as they don't leak at all and are reusable.
TECH Fanatic
Joined: Jun 2007
Posts: 1,255
Likes: 11
From: centerville, ohio
Your gasket should match the ports on your header flange. I use the 1406 which is a large d-port for a Brodix head, but it was the flange I used. The 1404 is the lt1 std d-port gasket. Some are square and some are round, depends on the mfg.
