Magneto HEI Distributor Internal Ignition Coil Only They're made to replace defective

They're made to replace defective or damaged pickups in all Speedmaster distributors

Convert your GM Turbo 400 into a 2 speed by using the Speedmaster billet aluminum intermediate clutch pack insert

This new setup ensures a more 'crisp' shift

equal-distribution layout produces great midrange torque without compromising top-end power

Magneto HEI Distributor Internal Ignition Coil Only They're made to replace defectiveFailure or poor performance from a coil can result in a misfire, a rough running, hard starting engine, and excessive emissions. Speedmaster's ignition coils provide the performance needed to help keep vehicles running the way that they were designed. These coils have corrosion protected laminations to protect coils from the harsh operating environment