4.8 to 5.3 stuff..

since you have access to a 5.3 i would just swap that in and then get a tune

put a 5.3L in it with cam, hardened pushrods, tune and longtube headers. THe 4.8L is anemic without a lot of work and with it's short stroke crank has a hard time making torque to pull hills even with an empty truck.

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Originally Posted by RedHeartbeat

put a 5.3L in it with cam, hardened pushrods, tune and longtube headers. THe 4.8L is anemic without a lot of work and with it's short stroke crank has a hard time making torque to pull hills even with an empty truck.

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X2 or 6.0 with the mentioned above. I hate my 4.8.

http://www.ls1truck.com/forums/front...in-budget.html

5.3 and 4:10s would be a good combo I bet.