I have a short bed 4x4 87 chevy with a EFI stock 350. The engine has around 200K Miles on it. I have recently installed a 4" suspension lift and added 33" tires. The motor needs valve seals and several other tune ups. Question is should I pull the motor and have it rebuilt/beefed up or just buy a package motor from some parts house to increase horse power.
In doing this several other questions come to mind. The tranny is a stock 4speed w/ overdrive. Not to sure on the gear ratio. I'm pretty sure it has a Spicer rear end? When I had 35" tires on it there seemed to be trouble with constantly down shifting and hardly any acceleration power.
If I beef up the engine will the ECM (computer) have to reprogramed to accomidate for the changes and where/how do I get this taken care of? Transmition/rearend changes needed to be made?
Basically I want to build it up to be a moderate mussle truck and I am not satisfied with the current engine.
Thanx,
-Daniel