Dart Big M2 Cast Iron BB Chev Engine Block with 4-Bolt Steel Cap DA31213344 Product:4.250" Bore, 9.8" Deck, STD Mains B&M Transpak modification components including

B&M Transpak modification components including special replacement valves and springs

AF8005-4013BLK

4L60E - 4L80E without PRNDL switch brackets sold separately

3" Billet Aluminium Weld-On Filler with Polished Cap

Dart Big M2 Cast Iron BB Chev Engine Block with 4-Bolt Steel Cap DA31213344 Product:4.250" Bore, 9.8" Deck, STD Mains B&M Transpak modification components includingDart Big M2 Cast Iron BB Chev Engine Block with 4 Bolt Steel Cap4. 250" Bore, 9. 8" Deck, STD Mains DA31213344 31213344 Dart engineered the Big M to be the strongest, most reliable, and easiest to build big block on the market. The Dart Big M2 is designed from the ground up as a true racing engine block which can be used with standard off the shelf big block components. The Big M2 is cast from premium high strength Iron and beefed up in all the