BDV5502SS- 55-57 Chevy Bel Air, Impala: 265/283 CID 8cyl. 2BBL Distributor Vacuum Advance Line; Stainless
BDV5502OM- 55-57 Chevy Bel Air, Impala: 265/283 CID 8cyl. 2BBL Distributor Vacuum Advnace Line; Steel
BDV5501SS- 55-57 Chevy Bel Air, Impala, 235 CID 6cyl, Distributor Vacuum Advance Line; Stainless
BDV5501OM- 55-57 Chevy Bel Air, Impala, 235 CID 6cyl, Distributor Vacuum Advance Line; Steel