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-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-31273344V PART NUMBER
Dart Big M Sportsman Gen V Block 31273344V BB Chevy 1 Piece Rear Seal$3,599.99
Cast Iron, Gen V, 1pc Rear Seal, 9.800 Deck Height, 4.250 Bore, Call For best price 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.
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DRT-31273344VI PART NUMBER
Dart Big M Sportsman Gen VI Block 31273344VI BB Chevy 1 Piece Rear Seal$3,599.99
Cast Iron, Gen VI, 1pc Rear Seal, 9.800 Deck Height, 4.250 Bore, Call For best price 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.