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550" long Hi-Tech 5/16" diameter pushrod handles the requirements of today's all-out race engines
heavy-duty diaphragms
Works with flat gasket or taper seat 14mm spark plugs
A Borla CrateMuffler gives you premium looks
this High Energy stud set has a 7/16" base thread and 7/16" rocker thread
Dart Big M Engine Block - 4.500" Bore - 10.200 Deck - 4-Bolt Main - 2 Piece Seal - Iron - BB Chevy Oil Filter Bypass Eliminator Adapter 550" long Hi-Tech 5/16" diameterProduct Description: Engine Big M Bare Block 4. 500 in Bore 10. 200 Deck 4 Bolt Main 2 Piece Seal Iron Big Block Chevy Sold Individually Since 1981, Dart Machinery has become the acknowledged leader in producing race winning components. Dart Machinery aluminum and cast iron engine blocks are designed to meet the specialized needs of racers and performance enthusiasts. Dart components are developed in house, manufactured on Dartas own CNC machining
