BB headers with LS flanges?
02-28-2011, 02:15 PM
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Car: 1987 IROC
Engine: Turbo 293ci 4.8l
Transmission: T56
BB headers with LS flanges?
I was wondering if anyone has tried big block long tube headers but put LS1 flanges for a LS1 swapped 3rd gen. i believe the ports are t about the same point on the head.
i know when i was building my 5.3L swapped 87 RX7 there was a bunch o fpeople using 5.0 mustang headers and putting LS1 flanges and they fit pretty good.
i know when i was building my 5.3L swapped 87 RX7 there was a bunch o fpeople using 5.0 mustang headers and putting LS1 flanges and they fit pretty good.
02-28-2011, 03:00 PM
#3
Re: BB headers with LS flanges?
I believe my buddy did this to an 80's el camino. 6.0 truck motor swapped in, and he reused his BBC headers for an A-body chevelle. Just cut and modified the tubes to LS flange. It fits nicely. Not a 2" primary tube tho.
I think that would work on 3rd gens but then again not sure of the clearance issues you may have.
You also could modify stock sbc longtubes but that is abit more work since the spacing isnt as close.
I think that would work on 3rd gens but then again not sure of the clearance issues you may have.
You also could modify stock sbc longtubes but that is abit more work since the spacing isnt as close.
02-28-2011, 03:08 PM
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Car: 1989 Pontiac Trans Am GTA
Engine: cammed LS1
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Axle/Gears: 9 bolt posi w/ 3.70 gears
Re: BB headers with LS flanges?
Seems like a lot of work to me when there are already long tube headers made specifically for the third gens and LSx engines. Just my two cents
02-28-2011, 03:15 PM
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Re: BB headers with LS flanges?
Yep, and with what those BBC swap headers cost, you might as well just buy headers meant for an LSx swap. They cost about the same. BBC swap headers are not cheap.
02-28-2011, 03:47 PM
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Re: BB headers with LS flanges?
no i was just curious. i did not know how much the BB headers cost.
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02-28-2011, 05:39 PM
#9
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Re: BB headers with LS flanges?
no but i got a good exhaust shop.
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