You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!
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.