MSD Pro-Billet OptiSpark Distributor - Optical Pickup - Electronic Advance - Socket Style - Black / Red - Pin Drive - GM LT-Series 1992-97 R040002 2001-2006 Chevrolet Silverado 2500 HD

2001-2006 Chevrolet Silverado 2500 HD LS Crew Cab Pickup

Includes 1/8 NPT sensor with brass adapters for 1/4 NPT and 1/8 BSPT

6mm Thread

1971-1973 Pontiac Grand Safari

MSD Pro-Billet OptiSpark Distributor - Optical Pickup - Electronic Advance - Socket Style - Black / Red - Pin Drive - GM LT-Series 1992-97 R040002 2001-2006 Chevrolet Silverado 2500 HDLeave it to MSD to build an all out performance distributor to replace the OEM GM LT1 Optispark! We machine an entire billet block of aluminum down into a precise housing that fits in place of the factory piece. Then, we fill it with a reliable new pick up assembly, a trick timing adjustment mechanism and top it off with an all new MSD distributor cap! The pick up is an advanced optical encoder, a different style of optical pickup than the OEM. This