Got a beat up 2.66 LT1 and a 2.66 LS1 in a box for a couple of projects. Not sure on the years as the ink has been washed off the GM tags. The LS1 needs a bell housing, front bearing plate, bearings, 1-4 sincros and blockers and a 5-6 driven with good splines, I got an extra output. The LT1 needs a bellhousing, clutch fork assm. 5th gear, blocker and sincro for starters. Could also use a viper output.