3817173 chevrolet 67 68 camaro Z28 corvette harmonic balancer GM 8"

This is a original 1967 1968 long rib assembly line harmonic balancer damper part# 3817173 Very rare with straight up timing mark directly in line with woodruff keyway this fit 1967-68 This does not have fins on the backside (those were deleted by gm in late '66 Chevrolet corvette camaro chevelle Nova with SPH high performance 302 327 small block engines it is aprox 8" across 2"wide Has the long rib bars that continue all the way to the outer ring It is in very good original condition has orig chev orange paint with patina vintage 60's part not a reproduction. Located on the west coast can ship anywhere needed With tracking. Date code stamp is G6 July 1966 Fits all 67-68 special high performance small block chevrolet V8 engines corvette nova camaro chevelle L79 Z28