401 buick nailhead

Can anyone tell me the measurement from the bellhousing to the front of the harmonic balancer,not the pulleys,on a 401 Buick Nailhead.
Many thanks Paul.

 

I know it's not what you asked for but bell housing to front lip of bottom pulley 29"

Best I can do at the moment, well unless I walk to the parking lot with a tape.

 

Thanks zman,
Is that measurement with two pulleys.
Regards Paul.

 

Yes, I believe it was, if I remember I can pull a tape when I get back to the shop.