okay i have a 1990 chevorlet silverado that has an old worn out 5.7 tbi motor in it.
i recently bought a 2003 5.3 motor complete with all accessories and wiring harness and computer. i am wanting to keep my 700r4 trans and run it cause i love that transmission. they are so easy to rebuild. my problem is i am completely lost when it comes to wiring anything and i cant seem to find the motor mounts anywhere to fit that motor in my truck. any info or clues on how to fix the harness or anywhere i could get one would be greatly appreciated