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post #1 of 8 (permalink) Old 03-02-2019, 11:05 AM Thread Starter
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Header fit

Hi guys, I'm contemplating getting long tube headers. Where I live, the only law is that 1991 and newer cars must have cats. I've deleted the smog pump & piping, so I assume that this allows for more header options that will fit. What body & year car headers will fit the LT1 B? At some point in the future I'd like to go turbo and/or LS motor, so not looking for something that'll last forever.

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post #2 of 8 (permalink) Old 03-03-2019, 02:36 AM
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post #3 of 8 (permalink) Old 03-04-2019, 11:08 AM
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+1 to the Tri-Y , I wish I had done these instead of the BBK's....
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post #4 of 8 (permalink) Old 05-04-2019, 08:42 AM Thread Starter
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If/when I have the $, I'll definitely get the CIA tri Y's.
Anyone know if the flowtech 11100 / hooker 2451 will fit (assuming cats are reworked/moved)?

Remember, when not sure what to do, hit the throttle.
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post #5 of 8 (permalink) Old 05-08-2019, 06:10 PM Thread Starter
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Originally Posted by big jack View Post
if/when i have the $, i'll definitely get the cia tri y's.
Anyone know if the flowtech 11100 / hooker 2451 will fit (assuming cats are reworked/moved)?
bump bump

Remember, when not sure what to do, hit the throttle.
It may not end well, but at least it'll end the suspense.
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post #6 of 8 (permalink) Old 05-08-2019, 07:47 PM
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Why do I think you mean the Flowtech AfterBurners?

Coated http://www.summitracing.com/parts/BIG-49100-1FLT/

These are widely regarded by the ISSF for over a decade, for much less than the CIA's options.

Here, dig this for more info.
https://www.impalassforum.com/vBulle...ners-info.html

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post #7 of 8 (permalink) Old 05-09-2019, 04:10 PM
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Big Jack, because you have a wagon with its boxed frame, it is very easy to modify a 68-72 GM "A" body cross member to fit.

Basically cut the ends off, weld on pieces of angle to sit on frame.

Doing this allows you enough length on both sides that you can mod the OE cats to sit beside the trans.

Mine was this way when it had an LT1.

Still use the cross member , just different cats with the LS


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post #8 of 8 (permalink) Old 05-15-2019, 07:11 AM Thread Starter
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Super Chevy dyno tested headers on stock exhaust system and found no increase in power (shorty headers, mind you).
I'd like to know what sort of power gain I could expect with long tube headers dumping directly through exhaust cutouts vs. manifolds & cutouts

www.superchevy.com/how-to/engines-drivetrain/sucp-0804-1996-chevy-caprice-performance-upgrades/

Remember, when not sure what to do, hit the throttle.
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