Rollmaster Red Series SFI 18.1 Harmonic Balancer - 6.200 in OD - Internal Balance - Small Block Ford IDI1300710051 They are patterned after the

They are patterned after the 1969-70 Ram Air IV Pontiac cylinder head

Honda and Chrysler replacements

Available with patent pending multi-tether system to enhance side to side movement

Light Springs - Black

Low SWR and broader band

Rollmaster Red Series SFI 18.1 Harmonic Balancer - 6.200 in OD - Internal Balance - Small Block Ford IDI1300710051 They are patterned after theProduct Description: Harmonic Balancer Red Series 6. 200 in OD SFI 18. 1 Steel Clear Powder Coat Internal Balance Small Block Ford Sold Individually Rollmaster and Romac designs and manufactures high strength timing sets and harmonic balancers respectively. By using billet strength steel these products are both stronger and lighter than standard cast iron pieces. The first step Rollmaster took in creating the world's best chain and sprocket timing