will the stock truck intake not fit because of the hood or the cowl? will the truck manifolds work, or do i have to get f-body exhaust manifolds? i heard the older transmissions will work on the ls1 style engine, so what about a t-5? i appreciate any help, ive alreay got the 5.3 engine and im wanting to start working on it here soon : )

 

These questions are all answered in the LSx swap FAQ. However, I'll do my best to answer anyway. The truck intakes will not clear the stock hoods. The truck exhaust manifolds will not work. Custom or LSx swap headers are the way to go. While you can probably make the T5 work with an LSx engine I wouldn't bother. The T5 won't hold up to that kind of torque for long and it will be a pain in the *** to make it work. Your best bet is to switch to a T56 or a 4L60E/4L80E transmission.

You really need to read the general F-Body LSx swap guide and the LSx truck motor swap guide.

 

So there is someone that has made the T5 work behind the 5.3, however it was in a Miata. I have talked to the guy and the swap would work for our car, however, the bellhousing he used was from a 60's BBC and it is mounted straight up. Our cars have a 17* tilt to it so I am not exactly sure how to make that work. You could probably change the mounting holes, but I have heard mixed results from that. Quicktime does sell a bellhousing that will work, but it is $550 plus shipping. I am trying to get my hands on an old truck bellhousing to see if that will work since it has the tilt to it and will fit the 11" clutch.

The other parts needed would be the LS1 clutch, flywheel, and pressure plate. Pilot bearing #12557583, Howe Racing throwout bearing #82870, and two hardlines for the TO bearing.

The only trick that I have read is the bellhousing.

 

thanks for the input. ill probably just sell my t5 and get a 4L60E