Black, Ford Small Block Crank Trigger Kit - 86403 flywheels-flexplates-and-parts 3 V8 1966 - 1969

3 V8 1966 - 1969 Chevrolet Corvette 427/7 V8 1970 - 1974 Chevrolet Corvette 454/7

7 V8 1987 - 1995 Chevrolet G10 305/5 V8 1991 - 1993 Buick Roadmaster / 1991 - 1993 Buick Commercial Chassis / 1993 Cadillac Fleetwood / 1990 Cadillac Brougham 350/5

6L V8 1975 - 1980 Chevrolet K10 400/6

1L/V6 1981 - 1993 Buick Riviera 3

25 Tip Diameter 3

Black, Ford Small Block Crank Trigger Kit - 86403 flywheels-flexplates-and-parts 3 V8 1966 - 1969Overview: For a long time, racers have known that one of the best things to do to an engine to improve its performance is to stabilize the ignition timing. The MSD Flying Magnet Crank Trigger system does exactly that by using four magnets embedded in an aluminum wheel. Although similar in appearance to other crank triggers, the MSD Flying Magnet design works on a different principle. Most crank triggers have a wheel, with steel studs sticking out,