Ford SB 289 302 351W 351C Serpentine Billet Aluminum Pulley Kit They also feature a spark

They also feature a spark plug style terminal and a threaded brass primary stud

chrome plated bezel and inlet screen

Internally the coil also has large gauge wire windings for maximum spark current and voltage with better heat dissipation at high rpm

highly polished chrome top accented by a chrome plated wing nut

Ford SB 289 302 351W 351C Serpentine Billet Aluminum Pulley Kit They also feature a sparkConverts traditional V belt pulleys to a serpentine system while retaining existing brackets. Designed for high revving street and race applications to improve belt alignment and reduce slippage. Helps prevent belt throwing under demanding conditions.