106-1071 | 3-5/8" Bore Single Plug Retro Cylinder Head and Valve Train Upgrade Kit for 1966-'84 big twins plate cup set Heavy-walled extreme duty crystal clear

Heavy-walled extreme duty crystal clear FEP Fluoropolymer outer insulation eliminates the need for grounding wires and ensures no interference with late model computer modules

light-weight die-cast aluminum

Interior front slip pocket

Tour pak quick disconnect harness (part # 2120-1427) for seamless connections under the seat

2024 Touring Models

106-1071 | 3-5/8" Bore Single Plug Retro Cylinder Head and Valve Train Upgrade Kit for 1966-'84 big twins plate cup set Heavy-walled extreme duty crystal clearS&S Cycle 106 1071 Heres a way to give your 3 5 8" bore shovelhead engine the nostalgic look of a pan, and improve performance at the same time. The Retro Cylinder Head and Valve Train Upgrade Kit consists of a set of S&S P Series 3 5 8" single plug cylinder heads with rocker cradles, S&S roller rocker arms, S&S hydraulic tappets, billet tappet guides, Quickee pushrods, pushrod cover clips, and the required gaskets and hardware for assembly. Fits 3 5