98RedBird

iTrader: (77)

I was installing an underdrive pulley last night and i noticed that there was no "key way" on the end of my crank.... is this normal for the LS-1's?? I know this probably sounds stupid, but what keeps the pulley from spinning on the end of the crank?

2K2WS6TA

iTrader: (2)

Yes it's normal, it's held on by the interferance fit, and the bolt.
BTW if you run a supercharger with high boost, you drill a hole in the crank and pulley for a dowel pin to keep the pulley from spinning on the crank at high boost pressures

98RedBird

iTrader: (77)

ah ok, cool man thanks