CNC-Motorsports offers the best selection in BBC 540-555-565 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-9766-E PART NUMBER
CNC Competition BB Chevy 540 Dart Short Block, Eagle Crank, SRP 9.4:1 Pistons$7,699.95
BB Chevy 540, Dart Block, Eagle 4340 Forged Steel 4.250 Crankshaft, Eagle 6.385 H Beam Rods, SRP 9.4:1 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-9768-E PART NUMBER
CNC Competition BB Chevy 540 Dart Short Block, Eagle Crank, SRP 10.4:1 Pistons$7,750.95
BB Chevy 540, Dart Block, Eagle 4340 Forged Steel 4.250 Crankshaft, Eagle 6.385 H Beam Rods, SRP 10.4:1 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-9769-E PART NUMBER
CNC Competition BB Chevy 555 Dart Short Block, Eagle Crank, SRP 10.6:1 Pistons$7,750.95
BB Chevy 555, Dart Block, Eagle 4340 Forged Steel 4.250 Crankshaft, Eagle 6.385 H Beam Rods, SRP 10.6:1 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-9770-E PART NUMBER
CNC Competition BB Chevy 540 Dart Short Block, Eagle Crank, SRP 12.8:1 Pistons$7,799.95
BB Chevy 540, Dart Block, Eagle 4340 Forged Steel 4.250 Crankshaft, Eagle 6.385 H Beam Rods, SRP 12.8:1 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-9772-E PART NUMBER
CNC Competition BB Chevy 565 Dart Short Block, Eagle Crank, SRP 13.0:1 Pistons$7,799.95
BB Chevy 565, Dart Block, Eagle 4340 Forged Steel 4.250 Crankshaft, Eagle 6.385 H Beam Rods, SRP 13.0:1 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-9772-S PART NUMBER
CNC Competition BB Chevy 565 Dart Short Block, Scat Crank, SRP 13.0:1 Pistons$7,850.95
BB Chevy 565, Dart Block, Scat 4340 Forged Steel 4.250 Crankshaft, Scat 6.385 H Beam Rods, SRP 13.0:1 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-9771-S PART NUMBER
CNC Competition BB Chevy 555 Dart Short Block, Scat Crank, SRP 12.8:1 Pistons$7,850.95
BB Chevy 555, Dart Block, Scat 4340 Forged Steel 4.250 Crankshaft, Scat 6.385 H Beam Rods, SRP 12.8:1 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-9770-S PART NUMBER
CNC Competition BB Chevy 540 Dart Short Block, Scat Crank, SRP 12.8:1 Pistons$7,850.95
BB Chevy 540, Dart Block, Scat 4340 Forged Steel 4.250 Crankshaft, Scat 6.385 H Beam Rods, SRP 12.8:1 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-9769-MR PART NUMBER
CNC Competition BB Chevy 555 Dart Short Block, Molnar Crank, SRP 10.6:1 Pistons$8,099.95
BB Chevy 555, Dart Block, Molnar 4340 Forged Steel 4.250 Crankshaft, Molnar 6.385 H Beam Rods, SRP 10.6:1 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-9768-S PART NUMBER
CNC Competition BB Chevy 540 Dart Short Block, Scat Crank, SRP 10.4:1 Pistons$7,799.95
BB Chevy 540, Dart Block, Scat 4340 Forged Steel 4.250 Crankshaft, Scat 6.385 H Beam Rods, SRP 10.4:1 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.