I have a new in the box BHJ balancer/damper for a bbc. This is NOT the low end cheaper balancer. This balancer retails for $543.75 through bhj.

Fits Chevy Big Block V8
External Balance
6.9" O.D.
2.85" Overall Length
12.9 lbs. Gross Weight
Billet Steel Construction
Blower Special w/6-Bolt Blower Pulley Pattern & 2" Register
Dual Keyways Standard
SFI 18.1 Certified

$250.00 + shipping
mark 925-250-9428