Okay so we are needing to replace the whole engine in my 2002 GMC sierra and it has the 4.3L V6 in it is there any possible way we can put in a 350 in there with out changing the motor mounts or radiator or anything or even a 323 or any V8 in sort, With out changing anything just a simple buy the motor and bolt it up to the tranny and the basics?
2002 GMC sierra Engine swap?
- Thread starter Bryan C
- Start date
Molson02536
New member
Engine will bolt right up, but your going to replace the exhaust system, wire harness and PCM to do the V6 swap to a V8 swap. Also so your going to need to replace a few thig in the transmission like the boost valve to recalibrate it for the extra HP and TQ. The radiator should be fine but replace the motor mounts regardless if your going to do the swap.
Good luck and keep us posted.
