Read the whole post please. This suburban was custom built to tow. At 60,000 miles it was built to add a DSC1 Procharger. The 454 was bored to a 502 CID. It has JE pistons, rods, and crank. Both heads were removed and milled. At that time all new springs, valves, and a new cam, it also has long tube headers. The 4LE60 transmission was rebuilt to stage 2, and the transfer case was replaced with a new one. I drove it and towed with it for a while. The Procharger gave out about a year ago I took the intercooling system out. We drove it after that, until I bought something else. This is a beast of a drivetrain, runs great. The body has holes in the front 2 fenders, and 1 door sags when its open. This suburban does not have a cat converter, where we lived it didn't need one. The body has 160,000 miles. This was a 5 figure build on the motor alone, it will run for a long time. I am open to trades.