Matt Conner
The louder the better
So I got a 1990 GMC 1500 with the 4.3 TBI with the 5 speed. Loosing a lot of coolant through the Exhaust, don’t know if it’s head gaskets or intake gaskets, but I’m trying to come up with a plan B just in case the 4.3 is clapped. I need to know if I got a 5.7 complete with the throttle body and everything. I know I’ll need to change the motor mounts and I’ll need the 5.7 flywheel and clutch, but I don’t know what all I need for the wiring and ECM, so if anyone has some suggestions about all that needs to be done please, reply to this thread, I can provide more info if needed