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-9776-Pro PART NUMBER
CNC Competition BB Chevy 540 Dart Pro Charger Turbo Short Block, Callies Crank, JE 8.4:1 Pistons$11,250.95
BB Chevy 540, Dart Block, Callies Magnum Forged Steel 4.250 Crankshaft, Ultra 6.385 H Beam Rods, JE 8.4:1 Dish Pistons - Rated to 1500 Horsepower 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-9800-1S PART NUMBER
CNC Competition BB Chevy 557 Dart Short Block, Scat Crank, Diamond 10.5:1 Pistons$8,499.95
BB Chevy 557, Dart Block, Scat 4340 Forged Steel 4.375 Crankshaft, Scat 6.385 H Beam Rods, Diamond 10.5:1 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. -
CNC-9776-CW PART NUMBER
CNC Competition BB Chevy 540 Dart Short Block, Callies Crank, Wiseco 14.0:1 Pistons$10,999.95
BB Chevy 540, Dart Block, Callies Magnum Forged Steel 4.250 Crankshaft, Oliver 6.385 Billet I Beam Rods, Weisco 14.0:1 Dome Pistons, Total Seal Rings, Balanced, Assembly is blue-printed 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-9783-M PART NUMBER
CNC Competition BB Chevy 555 Dart Short Block, Manley Crank, JE 14.5:1 Nitrous Pistons$8,099.95
BB Chevy 555 Competition Short Block, Dart Block Big M Sportsman Block, Manley 4340 Forged Steel 4.250 Crankshaft, Manley 6.385 H Beam Rods, JE 14.5:1 Nitrous Dome Pistons, Rings and Bearings, Fully machined and Blue-printed 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-9555-SB PART NUMBER
CNC Competition BB Chevy 540 Dart Blown Alcohol Short Block, Callies Crank, Diamond 12.0:1:1 Pistons$12,269.95
BB Chevy 540, Dart Block, Callies Magnum Forged Steel 4.250 Crankshaft, Ultra 6.385 H Beam Rods, Diamond 12.0:1 Dome Pistons - Rated to 1500 Horsepower 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-9791-CS PART NUMBER
CNC Competition BB Chevy 540 Dart Short Block, Compstar Crank, Diamond 13.4:1 Nitrous Pistons$8,799.95
BB Chevy 540, Dart Block, Callies Compstar 4340 Forged Steel 4.250 Crankshaft, Callies Compstar 6.385 H Beam Rods, Diamond 13.4:1 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-9757-CS PART NUMBER
CNC Competition BB Chevy 540 Dart Short Block, Compstar Crank, Mahle 10.6:1 Pistons$7,899.95
BB Chevy 540, Dart Block, Compstar 4340 Forged Steel 4.250 Crankshaft, Compstar 6.385 H Beam Rods, Mahle 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-9754-MR PART NUMBER
CNC Competition BB Chevy 540 Dart Short Block, Molnar Crank, Mahle 9.4:1 Pistons$8,050.95
BB Chevy 540, Dart Block, Molnar 4340 Forged Steel 4.250 Crankshaft, Molnar 6.385 H Beam Rods, Mahle 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-9755-MR PART NUMBER
CNC Competition BB Chevy 555 Dart Short Block, Molnar Crank, Mahle 9.6:1 Pistons$8,050.95
BB Chevy 555, Dart Block, Molnar 4340 Forged Steel 4.250 Crankshaft, Molnar 6.385 H Beam Rods, Mahle 9.6:1 Flat Top Pistons
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. -
CNC-9756-MR PART NUMBER
CNC Competition BB Chevy 565 Dart Short Block, Molnar Crank, Mahle 9.8:1 Pistons$8,050.95
BB Chevy 565, Dart Block, Molnar 4340 Forged Steel 4.250 Crankshaft, Molnar 6.385 H Beam Rods, Mahle 9.8:1 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.