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I want to replace the LS1 manifold with the LS6. I see there are 2 different part numbers 88894339 and 12573572. Are there any differences between the two? Also I will be installing 243 heads some time this winter.
i wouldnt imagine the internal of the intake be any different. maybe something cosmetically. from what i gather, the 888 intake is the one from the 01-02 f-body, and the 125 intake is from the z06 or ls2 motors. im a noob, but im fairly confident.
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Quote:
Originally Posted by 38DD2436
I want to replace the LS1 manifold with the LS6. I see there are 2 different part numbers 88894339 and 12573572. Are there any differences between the two? Also I will be installing 243 heads some time this winter.
There is no difference between the two. Just make sure the bottom is flat, the bottom on the LS1 intakes are not.
__________________
1999 Wrangler Saraha -- 6 cyl, Auto, 4" lift, 33s
2000 LPM Z28 M6 -- Stock with a lid, Daily Driver, Bluecat Tuned
2002 CETA A3--#2074 of 2390-- Carb'd, TH350, 12 bolt, some extras, still a little 346, BUILT NOT BOUGHT
The one that came off my '03 Corvette engine was #12561182. The bottom was flat but had stiffening ribs, is this what you consider the LS-6 bottom?
__________________ 2001 PEWTER SS #1750 of 5500: SLP Lid, SLP MAF, Polished TB, BBK Intake, MC Racing Dynoed, SLP Tuned Lenght LTs, McLeod Clutch, 3.73, NO TRACK TIMES
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Quote:
Originally Posted by 2001CamaroGuy
"YES!!! EMISSIONS CONTROLS HURT PERFORMANCE!!! THAT’S WHY MY CATS ARE IN THE LANDFILL INSTEAD OF ON MY CAR!!!"
LS6 Manifolds 
