PN 31213644. Dart Big M Engine Block. 4.600" Bore.
GMP-12T Dura Bond Coated Cam Bearings BBC BB Chevy Dart Big M & GM Bowtie Block
ARP 235-5601 Main Stud Kit for Dart Big "M" 4-bolt cast iron caps
Dart Big M Sportsman 9.800" Deck Height, 4.500" Bore PN 31223444
Dart Big M Sportsman 9.800" Deck Height, 4.250" Bore PN 31223344
Dart Big M 9.800" Deck Height, 4.500" Bore PN 31213444
Dart Big M 10.200" Deck Height, 4.600" Bore PN 31213654
