[lukecp]

If it is a 4.8, 5.3, or 6.0 litre vortec motor, it is completely different than the old small blocks we are all familliar with. There isn't even a distributor on one, it has one coil per plug wires. The new Vortec motors are basically a iron version of the LS1/LS6 motors in the Corvette, Camaro, and Firebird. I read an article in Popular Hot Rodding a few years ago about upgrades about the LS1, and they showed a picture of the bellhousing on one. They said the bolt pattern was the same, but all the fastners were metric, and one extra bolt was added at the top. While i think that 1350 is a great deal for that motor, it would be a real bear to put in your truck.