If a crank trigger system is not available for your engine or space is not an option, MSD offers these Magnetic Studs that can be installed in the flywheel. For a V8 engine, four studs would need to be precisely machined into the flywheel at 90� intervals and a pickup bracket would need to be fabricated to the non-magnetic pickup, PN 8276. For V6 even-fire applications, three studs at 120�, four cylinders would require two studs at 180�.