CNC-Motorsports offers the best selection in BBC 604-621-632-638 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.
-
CNC-9813-E PART NUMBER
CNC Competition BB Chevy 604 Dart Short Block, Eagle Crank, SRP 14.2:1 Pistons$8,550.95
BB Chevy 604, Dart Block, Eagle 4340 Forged Steel 4.750 Crankshaft, Eagle 6.700 H Beam Rods, SRP 14.2:1 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-9814-E PART NUMBER
CNC Competition BB Chevy 621 Dart Short Block, Eagle Crank, SRP 14.4:1 Pistons$7,899.95
BB Chevy 621, Dart Block, Eagle 4340 Forged Steel 4.750 Crankshaft, Eagle 6.700 H Beam Rods, SRP 14.4:1 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-9816-E PART NUMBER
CNC Competition BB Chevy 604 Dart Short Block, Eagle Crank, JE 15.0:1 Pistons$8,050.95
BB Chevy 604, Dart Block, Eagle 4340 Forged Steel 4.750 Crankshaft, Eagle 6.700 H Beam Rods, JE 15.0:1 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-9817-E PART NUMBER
CNC Competition BB Chevy 632 Dart Short Block, Eagle Crank, JE 15.6:1 Pistons$8,099.95
BB Chevy 632, Dart Block, Eagle 4340 Forged Steel 4.750 Crankshaft, Eagle 6.700 H Beam Rods, JE 15.6:1 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-9818-E PART NUMBER
CNC Competition BB Chevy 638 Dart Short Block, Eagle Crank, JE 15.8:1 Pistons$8,099.95
BB Chevy 638, Dart Block, Eagle 4340 Forged Steel 4.750 Crankshaft, Eagle 6.700 H Beam Rods, JE 15.8:1 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-9819-E PART NUMBER
CNC Competition BB Chevy 632 Dart Short Block, Eagle Crank, JE 14.0:1 Nitrous Pistons$8,450.95
BB Chevy 632, Dart Block, Eagle 4340 Forged Steel 4.750 Crankshaft, Eagle 6.700 H Beam Rods, JE 14.0:1 Nitrous 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-9820-E PART NUMBER
CNC Competition BB Chevy 604 Dart Short Block, Eagle Crank, Diamnd 10.3:1 Pistons$8,250.95
BB Chevy 604, Dart Block, Eagle 4340 Forged Steel 4.750 Crankshaft, Eagle 6.700 H Beam Rods, Diamond 10.3:1 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-9821-E PART NUMBER
CNC Competition BB Chevy 632 Dart Short Block, Eagle Crank, JE 10.7:1 Pistons$8,099.95
BB Chevy 632, Dart Block, Eagle 4340 Forged Steel 4.750 Crankshaft, Eagle 6.700 H Beam Rods, JE 10.7:1 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-9822-E PART NUMBER
CNC Competition BB Chevy 632 Dart Short Block, Eagle Crank, Diamnd 9.0:1 Pistons$8,199.95
BB Chevy 632, Dart Block, Eagle 4340 Forged Steel 4.750 Crankshaft, Eagle 6.700 H Beam Rods, Diamond 9.0:1 Dish 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-9823-E PART NUMBER
CNC Competition BB Chevy 604 Dart Short Block, Eagle Crank, Diamnd 13.6:1 Nitrous Pistons$8,699.95
BB Chevy 604, Dart Block, Eagle 4340 Forged Steel 4.750 Crankshaft, Eagle 6.700 H Beam Rods, Diamond 13.6:1 Nitrous 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.