Want to upgrade engine

I want to change my 2000 Silverado's engine from the 4.3L V6 to the 4.8L V8. Does anyone know of the costs and anything else that would need to be changed in oreder to swap the engines? Any web sites with instructions on doing an engine swap for my truck would be helpful as well.

I am in the final stages of completing this conversion that you inquired about. You would need of course, the complete running block (heads/intake/wiring harness/you get the idea). The fuel lines will not convert so you need new ones. They are $89 brand new from GM. The transmission, alternator, power steering pump, mass air flow sensor, air cleaner box, and junction block from the V6 will all convert. However, you do need new engine mounts. I was lucky and found a set on ebay for $20 shipped. GM wants $75 per mount (must be made of gold). You also need a new ECM. The ECM for the V6 is way different from the V8. The ECM on the V6 has red, blue, white, and black wiring connectors connecting directly under the junction block. The V8 ECM has only red and blue. But don't worry it all connects in the end. I hope this has helped or that you haven't given up on the fact of doing the conversion. I know once I complete mine it will be well worth it. If you have any other questions you can email me at [email protected]

i also have a 2000 silverado reg cab but want to put a LS1 in it i also want to change from auto to standard can anyone tell me where would be a good place to start or the chepest places to go



thank you for your time, kenneth frazier

That's what I dropped in my 2000 Silverado, an LS1. You just gotta keep your eyes open for a good deal. I got my motor for $500 from LKQ Corp, which is a crazy deal.

shoot i got a ls1 sittin in the garage, was the swap hard?
i got another question...i have never seen or worked on an ls6...would an ls6 bolt up to my tranny in my 99 silverado???

I have a Hypertech Power Programmer for a 2002 gm truck or suv for sale ($350) Im selling my truck and dont need it any more if interested email me at [email protected]