4 th gen ls headers

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Mar 26, 2012 | 08:19 PM

slinginrods

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4 th gen ls headers

got a set of 4th gen headers cheap anybody try em on a 3rd gen?

Mar 26, 2012 | 09:13 PM

88blackiroc

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From: MD

Car: 88 Iroc-z

Engine: ls1

Transmission: t56

Axle/Gears: 3.42

Re: 4 th gen ls headers

Wont work. The sbc head have the exhaust holes like. O OO O and lsx is O O O O.
However if its a lt1 header it will have the exhaust holes as classic sbc, however wont fit due to the radical frame differences.

Mar 28, 2012 | 12:05 PM

1ADan

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From: Pepperell, MA

Car: 1987 Trans Am

Engine: LQ9/L92

Transmission: 4L60E

Re: 4 th gen ls headers

if they're shorties, should fit exactly the same as the factory manifolds. if they're long tubes, been discussed quite a bit already, not a chance they'll fit.