Headers for a stock 305 TBI
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From: La Mirada, California
Car: 1991 Camaro RS
Engine: L98 350 TPI
Transmission: 700R4
Axle/Gears: ZT LSD with 3.42 - LS1 brakes
Headers for a stock 305 TBI
Im looking into headers for a 91 camaro rs. How difficult are they to install myself? Would i need any special tools etc.? also, how much would it cost to get them installed by a shop? what kind of headers should i get? should i get shorty or long tube? Thanks for your time.
-Tim-
-Tim-
Joined: Mar 2000
Posts: 43,187
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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
I'll assume the words "smog test" mean something to you.
Get emissions-legal shorties for '86-'90 TPI single-cat application, and cat & cat-back for same. Yes, I know, you don't have TPI. But, those headers, whether from Hooker (2055's), Edelbrock (TES), Hedman, or SLP, will be the best you can do from a performance standpoint, and won't give the Smog ***** cause to haul you off in the middle of the night. And, they will support any other future upgrades you may decide to make (like a 350 swap).
You can install them yourself if you have basic hand tools and means to get and support the car a foot or so off the ground. The hardest part is getting the old stuff out (Saws-All helpful there). A shop is going to ream you for the job - more for labor than the parts cost (if they'll even take it on).
Get emissions-legal shorties for '86-'90 TPI single-cat application, and cat & cat-back for same. Yes, I know, you don't have TPI. But, those headers, whether from Hooker (2055's), Edelbrock (TES), Hedman, or SLP, will be the best you can do from a performance standpoint, and won't give the Smog ***** cause to haul you off in the middle of the night. And, they will support any other future upgrades you may decide to make (like a 350 swap).
You can install them yourself if you have basic hand tools and means to get and support the car a foot or so off the ground. The hardest part is getting the old stuff out (Saws-All helpful there). A shop is going to ream you for the job - more for labor than the parts cost (if they'll even take it on).
Last edited by five7kid; Aug 5, 2003 at 06:32 PM.
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From: Milwaukee, Wisconsin
Car: 1982 Trans Am
Engine: LG4
Transmission: 200C
Axle/Gears: 3:73
Flowtechs are the cheapest with 1 1/2 inch primaries. They cost around 80 from Summit but do not have air tubes needed for emissions.
Thread Starter
Senior Member
iTrader: (9)
Joined: Jun 2002
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From: La Mirada, California
Car: 1991 Camaro RS
Engine: L98 350 TPI
Transmission: 700R4
Axle/Gears: ZT LSD with 3.42 - LS1 brakes
Thanks guys.... one more thing... im in california, does that change anything (smog legal wise)?
Joined: Mar 2000
Posts: 43,187
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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
Yes. Like I said.
Get an emissions-legal version. They will cost more, but they'll have the y-pipe, which makes installation easier, and won't cause you any problems at smog test time.
Flowtech makes an emissions-legal version, p/n 16102. I would recommend the other Holley brand, though, the Hooker 2055's I mentioned above.
Get an emissions-legal version. They will cost more, but they'll have the y-pipe, which makes installation easier, and won't cause you any problems at smog test time.
Flowtech makes an emissions-legal version, p/n 16102. I would recommend the other Holley brand, though, the Hooker 2055's I mentioned above.
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Joined: Jul 2003
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From: Raleigh, NC
Car: 1988 Pontiac Firebird Trans Am Vert
Engine: 5.0L TPI
Transmission: 5-Speed
Axle/Gears: 3.08
wait.... I was under the assumption that headers in an 89-92 RS couldn't be installed without raising the engine out of the bay.
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Joined: Mar 2000
Posts: 43,187
Likes: 43
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
You may or may not have to raise the engine off the engine mounts. But, you don't have to remove it.
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Senior Member
iTrader: (9)
Joined: Jun 2002
Posts: 742
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From: La Mirada, California
Car: 1991 Camaro RS
Engine: L98 350 TPI
Transmission: 700R4
Axle/Gears: ZT LSD with 3.42 - LS1 brakes
thanks guys....
That was very helpful....
I appreciate it
That was very helpful....
I appreciate it
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