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-31213354 PART NUMBER
Dart Big M Block 31213354 BBC 4.250 Bore, 10.200 Tall Deck$4,319.99
BB Chevy, Dart Block, Dart Big M Block, 10.200 Deck Height Tall Deck, 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-31223354 PART NUMBER
Dart Big M Sportsman Block 31223354 BBC 4.250 bore, 10.200 Tall Deck$3,599.99
BB Chevy, Dart Block, Dart Big M Sportsman Block, 10.200 Deck Height, 4.250 Bore, Ductile Main Caps, Engine Block, Cast Iron, 2pc 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-31273354V PART NUMBER
Dart Big M Sportsman Gen V Block 31273354V BB Chevy 1 Piece Rear Seal$3,599.99
Cast Iron, Gen V, 1pc Rear Seal, 10.200 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-31273354VI PART NUMBER
Dart Big M Sportsman Gen V Block 31273354VI BB Chevy 1 Piece Rear Seal$3,599.99
Cast Iron, Gen VI, 1pc Rear Seal, 10.200 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-31243354 PART NUMBER
Dart Big M NON Siamesed Full Water Block MRK IV 31243354 BB Chevy$2,954.69
Cast Iron, MRK IV, 10.200 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. -
DRT-31243354VI PART NUMBER
Dart Big M NON Siamesed Full Water Block Gen VI 31243354VI BB Chevy$2,954.69
Cast Iron, Gen VI, 10.2 Deck Height, 4.250 Bore, 1 Piece Rear Seal, Call For best price, 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-31213355 PART NUMBER
Dart Big M2 Block 31213355 BBC 4.250 Bore, 10.200 Deck, +.400 Raised Cam$4,334.99
BB Chevy, Dart Block, Dart Big M2 Block, 10.200 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-31223355 PART NUMBER
Dart Big M2 Sportsman Block 31223355 BBC 4.250 Bore, 10.200 Deck, +.400 Raised Cam$3,869.99
BB Chevy, Dart Block, Dart Big M2 Sportsman Block, 10.200 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. -
DRT-31243354V PART NUMBER
Dart Big M NON Siamesed Full Water Block Gen V 31243354V BB Chevy$2,954.69
Cast Iron, Gen V, 10.200 Deck Height, 4.250 Bore, 1 Piece Rear Seal, 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.