PMD Products 3 Oil Pump Primer Tools The 1/4", 5/16" Hex are Applicable for use with Ford Engines and Primer for GM Chevrolet Big Small Block and 4.3L Engines

Fits popular engines of 289, 302, 351, 390, 428 460 cubic inches and GM 283, 307, 327, 350, 383, 396, 400, 402, 427, 454 , 4.3L and other bored engines based off the GM small and Big Block engines. Primers will not work with GM LS engines. Designed to prime the lubricating system of a rebuilt engine prior to its first start to prevent the damage of a dry start. It works by connecting to the oil pump shaft through the distributor hole and inserting in oil pump. For use with 3/8" hand drill. * Black Oxide finish * Triangle Shaped Drive End to eliminate drill chick slippage * Aluminum bushing to insert in manifold for centering of tool

• Prime lubricating system of rebuilt engine prior to first start to prevent damage of dry start
• Set of 3 Oil Primers Tools - Tool Set is compatible with all popular Ford V8's and GM Chevy V8 engines. Also will fit GM 4.3L.
• One primer has 1/4 inch hex shape formed in tool end, other primer has 5/16 inset, GM Primer has metal coupler to interface to oil pump drive shaft
• All 3 Primers have Triangle Shaped Drive End to eliminate drill chuck slippage. For use with any hand drill. Black Oxide finish
• All 3 Primers have Aluminum bushing to insert in manifold for centering of tool