CNC-Motorsports offers the best selection of aftermarket engine blocks. Browse brands by Brodix, BMP, Dart, Eliminator and World Products. Custom machined and race prep blocks available in cast iron and aluminum.
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DRT-31213344 PART NUMBER
Dart Big M Block 31213344 BBC 4.250 Bore, 9.800 Deck$4,319.99
BB Chevy, Dart Block, Dart Big M Block, 9.800 Deck Height, 4.250 Bore, Steel Main Caps, Engine Block, Cast Iron, 2pc Rear Seal
Learn MoreFREIGHT CHARGEThis part will be shipped via truck freight and additional shipping charges will apply. Multiple parts shipped via freight in an order may increase the total shipping amount. -
DRT-31223344 PART NUMBER
Dart Big M Sportsman Block 31223344 BBC 4.250 Bore, 9.800 Deck$3,599.99
BB Chevy, Dart Block, Dart Big M Sportsman Block, 9.800 Deck Height, 4.250 Bore, Ductile Main Caps, Engine Block, Cast Iron, 2pc Rear seal
Learn MoreFREIGHT CHARGEThis part will be shipped via truck freight and additional shipping charges will apply. Multiple parts shipped via freight in an order may increase the total shipping amount. -
DRT-31213345 PART NUMBER
Dart Big M2 Block 31213345 BBC 4.250 Bore, 9.800 Deck, +.400 Raised Cam$4,334.99
BB Chevy, Dart Block, Dart Big M2 Block, 9.800 Deck Height, 4.250 Bore, Billet Steel Main Caps, Engine Block, Cast Iron, 2pc Rear Seal, +.400 Raised Cam
Learn MoreFREIGHT CHARGEThis part will be shipped via truck freight and additional shipping charges will apply. Multiple parts shipped via freight in an order may increase the total shipping amount. -
DRT-31223345 PART NUMBER
Dart Big M2 Sportsman Block 31223345 BBC 4.250 Bore, 9.800 Deck, +.400 Raised Cam$3,869.99
BB Chevy, Dart Block, Dart Big M2 Sportsman Block, 9.800 Deck Height, 4.250 Bore, Ductile Iron Main Caps, Engine Block, Cast Iron, 2pc Rear Seal, +.400 Raised Cam
Learn MoreFREIGHT CHARGEThis part will be shipped via truck freight and additional shipping charges will apply. Multiple parts shipped via freight in an order may increase the total shipping amount.