Sierra/Prime Line (740) 18-5483 Distributor

Rotation: Conventional; Cobalt magnets and Hall Effect trigger for stable timing and precise spark distribution; Compensates for inherent electronic delay, Synchronized peak current and spark timing reduces head build-up; Compatible with most capacitive discharge ignition boxes; Integrated patented Ignitor II technology with adaptive dwell control, Non-vented distributor cap equipped with stainless steel fasteners; Triple screen spark arrestor for added protection; Resistance Ohms: 0.6, Magnetic triggered billet distributors designed to meet or exceed SAE J1171 Standards; Machined heat treated gear; Tight tolerance insures durability and consistent timing to maximize performance, Complete with high dialectic strength cap and rotor for years of performance; Bored for accuracy for maximum durability; Fits: Chevrolet Marine small & big block engine (standard deck height).