1.400 Height Progressive Valve Spring
Price is for 1 spring
This is a trick spring for the intake valve.. It enables lower seat pressure and higher nose pressure.
This set up in most cases gives you better acceleration.
This set up is mostly used on all unrestricted stock classes and WKA Gold Plate. This set up is not advised for smaller plate applications.
Dover Power LLC * Speed Seeker Race Engines * Predator Engines & Parts * ARC * Dyno Cams* Rev Pro Cams & Valve Springs * Holey Moses Carburetors & Headers * Briggs & Stration * Race Tire ReHab * Goldie Locks Disc Clutches * Pro Line Race Jackets * RLV Chain & Mufflers * Kart Bearings * Custon Cylinder Hrads * Machine Work