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.
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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-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. -
CNC-9824-E PART NUMBER
CNC Competition BB Chevy 632 Dart Short Block, Eagle Crank, Diamond 14.2:1 Nitrous Pistons$8,699.95
BB Chevy 632, Dart Block, Eagle 4340 Forged Steel 4.750 Crankshaft, Eagle 6.700 H Beam Rods, Diamond 14.2:1 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-9825-E PART NUMBER
CNC Competition BB Chevy 638 Dart Short Block, Eagle Crank, Diamond 14.4:1 Nitrous Pistons$8,699.95
BB Chevy 638, Dart Block, Eagle 4340 Forged Steel 4.750 Crankshaft, Eagle 6.700 H Beam Rods, Diamond 14.2:1 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-9826-E PART NUMBER
CNC Competition BB Chevy 604 Dart Short Block, Eagle Crank, Diamond 15.0:1 Pistons$8,199.95
BB Chevy 604, Dart Block, Eagle 4340 Forged Steel 4.750 Crankshaft, Eagle 6.700 H Beam Rods, Diamond 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-9827-E PART NUMBER
CNC Competition BB Chevy 632 Dart Short Block, Eagle Crank, Diamond 15.7:1 Pistons$8,199.95
BB Chevy 632, Dart Block, Eagle 4340 Forged Steel 4.750 Crankshaft, Eagle 6.700 H Beam Rods, Diamond 15.7:1 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-632-CDUSA PART NUMBER
All American BB Chevy 632 Short Block, Callies Crankshaft, Diamond 14.2:1 Nitrous Pistons$12,450.95
All American BB Chevy 632 Short Block, Dart Block Big M Tall Deck Block, Callies 4340 Forged Steel 4.750 Crankshaft, Callies Enforcer 6.700 I Beam Rods, Diamon 14.2:1 Nitrous Pistons, Fully Machined, Balanced, Short Block Assembled and Blue-printed *2000 HP Rating* 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.