【Specification】--Magnetic Trigger Style, Mechanical and Advance Vaccum Type, Male Cap, and Includes Internal Coil.One Wire installation with high-grade aluminum housing and hardened steel dual bushing construction utilizing the 4-pin ignition 【Complete HEI Distributor】-Complete unit including ignition module,one wire installation,red cap and rotor etc. 【Vehicle Fitment】--Compatible with Small Block SB and Big Block BB Pontiac 301 326 350 389 400 421 428 455 【Compatible with OEM numbers】--JM6504R,PE326,KA-1040011 【Warranty】--One year limited warranty 【Gear Material】--The gears are made of specially treated 20CR steel, which is hard and wear-resistant. Brand MAS Model Ignition Distributor KA-1040011 Item Weight 3.1 pounds Manufacturer King Auto Parts OEM Part Number 1040011, JM6504R PE326, 301ci, 326ci, 350ci, 389ci, 400ci, 421ci, 428ci, 455ci, KA-1040011 Item model number KA-1040011 Product Dimensions 7 x 4.5 x 5.5 inches Manufacturer Part Number KA-1040011 Is Discontinued By Manufacturer No