This module will work on all cast aluminum GM HEI distributors.
Brute Strength and Precision Timing
MSD's "stock appearing" Circle Track HEI Distributor is designed with a bulletproof ignition module for ultimate reliability from idle to max RPM. A high-output ignition coil in the cap produces peak spark energy at any RPM, while a quench, polish, quench nitride or tuffride (QPQ)-coated chromoly advance cam and weights provide smooth operation and precision timing.
- Meets Sanctioning Body HEI Distributor Rules
- Tig Welded Shaft and Weight Plate Pins
- Easily Lock-out Timing Advance with Supplied Timing Lock-out Cam
- Works Perfectly with 121-8727CT HEI Circle Track RPM Control
Emission Code 3
This part is legal for use on Uncontrolled (Non-Emissions Controlled) Vehicles or Racing Vehicles.
The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:
- 1965 and older U.S. manufactured California Certified vehicles
- 1967 and older U.S. manufactured Federally Certified vehicles
- 1967 and older Foreign manufactured vehicle
Racing Vehicles are vehicles that are used exclusively for racing or other forms of competition that are not registered and that may never be used on the street.
WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.
WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.
WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.