suspect2001

i'm in the middle of a head/cam swap. i just got done pulling off the stock pulley and i noticed there is no keyway on the pulley or crank.
the pulley im putting on is an SLP, it has a keyway in it.
is this an issue? should i just put it on however? there are degree markings on the SLP pulley, so i would assume it would matter.
or should i stop having beers while i work on my truck?

'01 silverado 5.3L, 2wd, SCSB
thank you.

JRENIGAR

iTrader: (37)

just put it on. the ls1's dont use crank marks for timing. All aftermarket balancers are keyed. It would only need a key if using a blower driven off the crank because of extra drag on the pulley used to turn the blower. Make sense?

suspect2001

got it. i appreciate your help. have a good one.