Draco Conventional Front Coil Spring 5.5" x 10.5" - 400 lb. - Purple RS00100308 These Fuel Plugs seal in

These Fuel Plugs seal in 30

000" long Hi-Tech 3/8" diameter pushrods handle the requirements of today's all-out race engines

3/4 in Pilot

1963-1966 GMC 3500

Draco Conventional Front Coil Spring 5.5" x 10.5" - 400 lb. - Purple RS00100308 These Fuel Plugs seal inDraco Racing Coil Springs are engineered to offer the fewest coil and largest coil gap currently available, reducing weight while providing maximum travel with a linear rate. All springs are preset to prevent sag. Draco Spring is a manufacture of racing springs available in a large selection of sizes and rates. A family owned and operated business since 1969, Draco Spring has grown into the one of the largest custom spring manufacturers in the world.