Dart Big M Engine Block - Bare Block - 4.250 in Bore - 9.800 Deck - 4-Bolt Main - 2-Piece Seal - Big Block Chevy 31213344 Helmet Air System Blower Mount Jesel has built our Precision

Jesel has built our Precision Roller Lifters with features that other companies are just starting to call standard

To Activate Solenoids and Fuel Pumps

Replacement Gauge Lights

3 Rev Limiters - Choose between 4 options for each: Fuel Only

Dart Big M Engine Block - Bare Block - 4.250 in Bore - 9.800 Deck - 4-Bolt Main - 2-Piece Seal - Big Block Chevy 31213344 Helmet Air System Blower Mount Jesel has built our PrecisionProduct Description: Engine Big M Bare Block 4. 250 in Bore 9. 800 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