CNC-Motorsports offers the best selection in BBC 496-505 short blocks. Our short blocks are in high demand among racers of all types worldwide. We use the best name brands such as Dart, Callies, Lunati, CP-Carillo, Eagle, Scat, JE, Diamond, Mahle and Manley just to name a few. All our short blocks are 100% machined, CNC Machined and blue-printed to our proven race wining specs. Custom builds available upon request, call or e-mail us to get started today.
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CNC-9731-MR PART NUMBER
CNC Competition BB Chevy 454/496 Dart Short Block, Molnar Crank, SRP 10.2:1 Pistons$8,099.95
BB Chevy 454/496, Dart Block, Molnar 4340 Forged Steel 4.250 Crankshaft, Molnar 6.385 H Beam Rods, SRP 10.2:1 Dome Pistons
Learn More3% CREDIT PAYMENT FEEAn additional 3% fee will be charged for applicable engines purchased via credit card, PayPal or affirm.FREIGHT 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. -
CNC-9732-MR PART NUMBER
CNC Competition BB Chevy 454/496 Dart Short Block, Molnar Crank, SRP 12.7:1 Pistons$8,099.95
BB Chevy 454/496, Dart Block, Molnar 4340 Forged Steel 4.250 Crankshaft, Molnar 6.385 H Beam Rods, SRP 12.7:1 Dome Pistons
Learn More3% CREDIT PAYMENT FEEAn additional 3% fee will be charged for applicable engines purchased via credit card, PayPal or affirm.FREIGHT 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. -
CNC-9733-MR PART NUMBER
CNC Competition BB Chevy 454/496 Dart Short Block, Molnar Crank, JE 8.7:1 Pistons$8,350.95
BB Chevy 454/496, Dart Block, Molnar 4340 Forged Steel 4.250 Crankshaft, Molnar 6.385 H Beam Rods, JE 8.7:1 Flat Top Pistons
Learn More3% CREDIT PAYMENT FEEAn additional 3% fee will be charged for applicable engines purchased via credit card, PayPal or affirm.FREIGHT 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. -
CNC-9734-MR PART NUMBER
CNC Competition BB Chevy 454/496 Dart Short Block, Molnar Crank, JE 12.9:1 Pistons$8,350.95
BB Chevy 454/496, Dart Block, Molnar 4340 Forged Steel 4.250 Crankshaft, Molnar 6.385 H Beam Rods, JE 12.9:1 Dome Pistons
Learn More3% CREDIT PAYMENT FEEAn additional 3% fee will be charged for applicable engines purchased via credit card, PayPal or affirm.FREIGHT 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. -
CNC-9735-MR PART NUMBER
CNC Competition BB Chevy 454/511 Dart Short Block, Molnar Crank, JE 13.4:1 Pistons$8,350.95
BB Chevy 454/511, Dart Block, Molnar 4340 Forged Steel 4.250 Crankshaft, Molnar 6.385 H Beam Rods, JE 13.4:1 Dome Pistons
Learn More3% CREDIT PAYMENT FEEAn additional 3% fee will be charged for applicable engines purchased via credit card, PayPal or affirm.FREIGHT 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. -
CNC-9736-MR PART NUMBER
CNC Competition BB Chevy 454/496 Dart Short Block, Molnar Crank, Diamond 8.4:1 Pistons$8,499.95
BB Chevy 454/496, Dart Block, Molnar 4340 Forged Steel 4.250 Crankshaft, Molnar 6.385 H Beam Rods, Diamond 8.4:1 Flat Top Pistons
Learn More3% CREDIT PAYMENT FEEAn additional 3% fee will be charged for applicable engines purchased via credit card, PayPal or affirm.FREIGHT 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. -
CNC-9737-MR PART NUMBER
CNC Competition BB Chevy 454/496 Dart Short Block, Molnar Crank, Diamond 13.1:1 Pistons$8,499.95
BB Chevy 454/496, Dart Block, Molnar 4340 Forged Steel 4.250 Crankshaft, Molnar 6.385 H Beam Rods, Diamond 13.1:1 Dome Pistons
Learn More3% CREDIT PAYMENT FEEAn additional 3% fee will be charged for applicable engines purchased via credit card, PayPal or affirm.FREIGHT 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. -
CNC-9738-MR PART NUMBER
CNC Competition BB Chevy 454/505 Dart Short Block, Molnar Crank, Diamond 13.5:1 Pistons$8,499.95
BB Chevy 454/505, Dart Block, Molnar 4340 Forged Steel 4.250 Crankshaft, Molnar 6.385 H Beam Rods, Diamond 13.5:1 Dome Pistons
Learn More3% CREDIT PAYMENT FEEAn additional 3% fee will be charged for applicable engines purchased via credit card, PayPal or affirm.FREIGHT 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.