[atijohn]

a damper is more then something to bolt pulleys to. it controls torsional twist. some manufactures of elastomer-type dampers use the single strip elastomer that has been proven effective on oem applications operated at low rpm's. bhj looks like one of those manufactors. georges engine looks like $$$ spent. the damper looks to be a new oem replacement. the super damper is the only damper designed exclusively for performance engines. it will be money well spent. ati resource and development has proven an increase in horsepower by just a switch from the oem style to ati super damper.