most commonly used 3rd gen headers?
Thread Starter
Member
Joined: Jul 2001
Posts: 401
Likes: 0
From: Surrey,BC,Canada
Car: 1989 Trans Am GTA
Engine: 5.7L 600cfm carb
Transmission: 700R4 (auto)
most commonly used 3rd gen headers?
hi, im in the process of an engine rebuild, and i want to slap on some headers. im buying a rebuilt 350 with a 650cfm edelbrock carb/intake. whats the most commonly used, best and cheapest headers to use on this set up? i also want to re-use my old y-pipe if possible. mainly i just want headers for the extra room changeing spark plugs, the added hp, is nice too though.
Joined: Mar 2000
Posts: 43,187
Likes: 42
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Two problems with your "vision" here:
1) You can't use your factory y-pipe with headers. Nobody makes them that way (for some very good reasons).
2) Spark plug clearance will not improve with headers. Some people have claimed they can do theirs in 10 minutes, but there are a bunch of liars out there, too.
The only reason to go with headers is improved performance. A new y-pipe is a must towards that goal.
The most commonly used seems to be Edelbrock TES. That doesn't make them the easiest, best, or lowest price - they were one of the first to offer smog-legal headers, which is probably a big part of their abundance. "Better/best" headers seem to be SLP and Hooker. "Cheapest" are Hedman and Flowtech (if you include y-pipe) - the Hedmans are available in emissions-legal and non-emissions versions. Hooker also makes a non-emissions version (2460) that will require fabrication of a y-pipe, but they're good, inexpensive headers - getting the y-pipe fab'ed will probably cost you more than getting the Hedmans with y-pipe, though.
1) You can't use your factory y-pipe with headers. Nobody makes them that way (for some very good reasons).
2) Spark plug clearance will not improve with headers. Some people have claimed they can do theirs in 10 minutes, but there are a bunch of liars out there, too.
The only reason to go with headers is improved performance. A new y-pipe is a must towards that goal.
The most commonly used seems to be Edelbrock TES. That doesn't make them the easiest, best, or lowest price - they were one of the first to offer smog-legal headers, which is probably a big part of their abundance. "Better/best" headers seem to be SLP and Hooker. "Cheapest" are Hedman and Flowtech (if you include y-pipe) - the Hedmans are available in emissions-legal and non-emissions versions. Hooker also makes a non-emissions version (2460) that will require fabrication of a y-pipe, but they're good, inexpensive headers - getting the y-pipe fab'ed will probably cost you more than getting the Hedmans with y-pipe, though.
Thread Starter
Member
Joined: Jul 2001
Posts: 401
Likes: 0
From: Surrey,BC,Canada
Car: 1989 Trans Am GTA
Engine: 5.7L 600cfm carb
Transmission: 700R4 (auto)
flowtech?
ok, about how much would flowtech headers and a flowtech y-pipe cost anyway? one thing is for sure, i hate my rusted up peice of crap stock exhaust manifolds. does flowtech have a web site?
Trending Topics
Senior Member
Joined: Apr 2002
Posts: 675
Likes: 0
From: Charleston, SC
Car: 1988 Pontiac Firebird, flat black
Engine: Stock 305 LO3
Transmission: Five speed
Hooker super comp shorties. PN 2055 I think. It cost me about $425. But that is a 3" y pipe, stater heat wrap, wire seperators, and special bolts that have a c clamp on them to prevent them from backing out. They do not bolt up to the cat, but I no longer have one!!
Thread
Thread Starter
Forum
Replies
Last Post
bjpotter
History / Originality
47
Jan 22, 2019 12:27 PM







