brningdawn
Newbie
Hey guys, wanted some thoughts on what do to with my truck. It's a 92 GMC K1500 5.7 with the 4l60. The engine is on it's last leg. Compression is low in 7 and it some days it has a pretty loud knock. Other days it doesn't. Haven't tracked it down yet as I haven't been driving it except to move it around. The transmission was rebuilt maybe 20-30k miles ago.
This last week I bought a parts truck that is all rusted out but has an excellent interior and a good motor with only 138k miles on it. It's a 94 GMC K1500 5.7 with 4l60e. I'm swapping the interior over and am thinking about swapping the drivetrain as well. I had a guy offer me $600 for the motor today so I could sell it and go a different direction with mine.
If I swap the engine from the 94 into the 92 what problems might I run into? Should I swap the transmission as well as all the harnesses? I can't be certain the transmission is good other than first gear because the 94 has a broken torsion bar cross member making it undriveable. The 94 transmission is also really rusted at the mount and adaptor between the transmission and transfer case.
Would swapping just the motor be as simple as yanking the old one out and dropping the new one in with the 92 harness and then just swapping over the bracket for the TV cable? I'm not sure if the 92 harness will work with the 94 motor. It looks like the 94 has a 3 wire o2 and it has an electronic transmission so I know the harnesses aren't identical.
This last week I bought a parts truck that is all rusted out but has an excellent interior and a good motor with only 138k miles on it. It's a 94 GMC K1500 5.7 with 4l60e. I'm swapping the interior over and am thinking about swapping the drivetrain as well. I had a guy offer me $600 for the motor today so I could sell it and go a different direction with mine.
If I swap the engine from the 94 into the 92 what problems might I run into? Should I swap the transmission as well as all the harnesses? I can't be certain the transmission is good other than first gear because the 94 has a broken torsion bar cross member making it undriveable. The 94 transmission is also really rusted at the mount and adaptor between the transmission and transfer case.
Would swapping just the motor be as simple as yanking the old one out and dropping the new one in with the 92 harness and then just swapping over the bracket for the TV cable? I'm not sure if the 92 harness will work with the 94 motor. It looks like the 94 has a 3 wire o2 and it has an electronic transmission so I know the harnesses aren't identical.