Small Dia. Cap & Rotor Kit (8431/8467)

The MSD IGNITION Small Diameter Cap & Rotor Kit (model 84315) is a complete HEI-style replacement solution specifically engineered for V8 engines utilizing small diameter MSD distributors. This kit is ideal for those performing maintenance or upgrades on their ignition systems, particularly in high-performance or racing contexts.

Featuring solid brass terminals and precision construction, this cap and rotor assembly ensures consistent spark timing, which is crucial for maintaining engine output and throttle response. The race-grade rotor includes venting to manage heat and carbon tracking, while the screw-down terminal connections help eliminate signal loss, particularly in high-RPM environments.

This kit is commonly paired with MSD 6-series ignition boxes and 8mm spark plug wires, making it a popular choice among serious V8 builders. Its small diameter design is particularly beneficial for compact engine bays and vintage restorations where space is limited, ensuring compatibility with a range of performance applications.