I have a 03 full size GMC with the 4.8. I'm wondering if there would be any trouble out of the electrical or fuel systems by dropping an LT1 or LT4 in. I know a guy with a LT1 or LT4 (dont know which) still in the GM crate. If it'll work I'll buy it and wait for my 4.8 to blow. I don't think i...
I have a 03 full size GMC with the 4.8. I'm wondering if there would be any trouble out of the electrical or fuel systems by dropping an LT1 or LT4 in. I know a guy with a LT1 or LT4 (dont know which) still in the GM crate. If it'll work I'll buy it and wait for my 4.8 to blow. I don't think i...