How do you install a damper on the old Chevy engines without the threaded crank hole? This is what they used in the old days.
http://www.ebay.com/itm/KENT-MOORE-...Motors_Automotive_Tools&vxp=mtr#ht_2204wt_713
http://www.ebay.com/itm/KENT-MOORE-...Motors_Automotive_Tools&vxp=mtr#ht_2204wt_713