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Will a LS1 78mm throttle body work on a '00 5.3 truck intake manifold?
I'm thinking about getting a ported 78mm TB when I change the engine out to a 5.7 long block, but use my 5.3 intake manifold to keep everything matched up on top. I don't want to go the pulley relocation route, etc. needed with an LS6 intake.
Would I see any gains over just using my stock TB from the 5.3?
Any experienced info or opinions would be appreciated. Thanks.
The throttle cam on the side is keyed differently. You'll have to relocate your throttle cables. Not worth the hassle IMO...they are either exactly the same size or close enough that you won't notice a difference.
2011 LML CCSB Silverado - stock 1999 RCSB 1500 4x4 Silverado - LLY/Allison swapped - 5300 lbs - 1/2 ton running gear - Wehrli S475 over stock twin kit - Mike L trans, MLGK converter - 3.42 gears - TrueTrac - Tuned by Mark @ Danville - Kennedy twin pumps - 1500 e-fans - 11.9 @ 116