MSD Ignition Crank Trigger Distributor Features: Fit In Extremely Tight Areas Improve Oil Control w/Two Optional O-Rings Small Oil Bleed Hole On Bottom To Prevent Wear Adjustable Slip Collar Alkyd Cap w/Brass Terminals Bronze Gear At The Base Use w/MSD 6/7/8-Series Ignitions/Crank Trigger Height: 18.00 Width: 7.00 Length: 7.00 Weight: 4.50 lbs Vehicle Type: 2717