Dart Big M Sportsman Iron Engine Block BBC - 31223454 GEAR Deck Height: 8

Deck Height: 8

moving it out to your attach point to give you superior access

centerless-ground and thread rolled

■ Software configurable ignition interface (GM HEI

Primary and secondary windings are encased in Ciba polyurethane for vibration protection

Dart Big M Sportsman Iron Engine Block BBC - 31223454 GEAR Deck Height: 8#31223454 4. 500" Bore 10. 200" Deck Height Ductile Iron Main Caps Dart engineered the Big M to be the strongest, most reliable, and easiest to build big block on the market. With deck heights of 9. 800 and 10. 200 and bore sizes up to 4. 600, the Big M gives you the versatility to build a wide variety of engine combinations. The Big M is fitted with Billet Steel 4 bolt main caps for ultimate bottom end strength. The Sportsman block is fitted with