I put a 2003 4.3 into my truck and it was the worse thing I ever did.If you going to go with a chevy engine get something before 1996 0b2 is a pain in the ass. It ran fine for 11 years but not that many miles on it. It stopped one day and has...
With my kit the seat still bolts to the floor in the same position. What I did was modify the rail so it operates in the same range but 2” back. No loss of head room.