SKU: MSD-8139MSD
8139MSD Magneto - MSD 12 amp Pro Mag Chevy Std/Tall Deck USES 8106 POINTS BOX

MSD ProMag 12 amp -       8139MSD                  

See Also our 12 amp lite 

Supplied with a cap, rotor, wire retainer, bronze gear and a Billet Hold-Down Clamp.

Two taller, one-piece housings are available for Chevrolet engine blocks with taller deck heights.

Each generator features an adjustable slip collar that provides easy adjustment of the magneto and cam gear alignment. This is critical for engines with varying deck heights, custom heads and modified intakes.