Here is a very rare good condition gm 3817173 harmonic balancer damper GM chevrolet Assembly Line Factory original not a reproduction part

Aprox 8" across by 2" wide This is the SPH special high perfomance from GM correct for small block engines 302 z28And L79 327 - 350 Fits camaro corvette chevelle nova It is the correct 1967 1968 version with the long three rib bars without the fins on the backside It is by ncrs correct for all 67 production cars up to 69 when they changed the timing mark 2 o clock from keyway THIS ONE IS IN LINE WITH woodruff crank key so it is pre 69 date stamp is G 6 July 1966

Fits one of the Rare 602 z28 '67 item also perfect for 1967 L79 327 4 speed chevy 2 novas this balancer was a slight change over the 62-early 66 model as the inner portion was balanced seperate with drill holes and small weights inserted and then the entire unit was balanced again after outer ring install and rubber injection molded process was completed and then balanced drilled on the outer ring

Comes with 1 new old stock GM correct NCRS

LE foundry crank bolt with safety drill hole in head of bolt neccesary to accept safety wire for road racing SCCA rules also nos GM large flat washer

great for a grumpy jenkins clone or gasser 4 speed period speed part This has never been restored its a superb survivor partKeywords Muncie m20 m21 m22 rock crusher 12 bolt posi yenko grumpy jenkins

Free shipping with tracking anywhere in the usa or canada