got a zz4 shortblock to replace the 350 that was in it
question is which flywheel should I use
the large flywheels are for trucks and for cars the only one I see anywhere are the smaller (153 tooth)
the large ones you can only put a truck 12" which won't fit in the bell housing (flywheel will but not when pressure plate is installed)
any ideas would be greatly appreciated thank you

What kind of bellhousing do you have?

Originally posted by Tom's 68 conv:
got a zz4 shortblock to replace the 350 that was in it
question is which flywheel should I use
the large flywheels are for trucks and for cars the only one I see anywhere are the smaller (153 tooth)
the large ones you can only put a truck 12" which won't fit in the bell housing (flywheel will but not when pressure plate is installed)
any ideas would be greatly appreciated thank you Tom,
What's the question??
Are you wanting to use a large or small flywheel?
The 168 tooth flywheel is normally drilled for the 10.5 & or the 11" clutch.
I think this is the GM part number you need
10105832
Try a search at SDPC or the GM parts depot & see if it is the right one ;)

bb485 it is the bellhousing from the 327 that had a heavy duty clutch
looks almost the same as the truck bell housing except for a couple of important dimensions that won't let a truck pressure plate fit
pretty sure the one wolfplace is talking about is the one that I need
thanks guys