Universal HPC/HCV Race 12V High Output External Male E-Core Ignition Coil - Blue These can be used on

These can be used on std or aftermarket plenum manifolds

Specialized high temperature epoxy resists shock and vibration

use Speedmaster cast iron cylinder heads

They just reuse the old

and a funnel adapter is included for assistance with filling

Universal HPC/HCV Race 12V High Output External Male E-Core Ignition Coil - Blue These can be used onSpeedmaster HPC ignition coils are designed for high rpm, long duration applications. Windings are encased in a durable epoxy and secured with extruded brackets. They also feature a spark plug style terminal and a threaded brass primary stud. They are supplied with rubber shock mounts to help them resist coil vibration.