CNC-Motorsports Chevy 415-421 short blocks have quickly raised the bar to a new level in offering high quality performance short blocks at an affordable price. CNC dart short blocks have become a huge hit among racers and performance enthusiast all over the world. We have the ability to custom build you just about any combination the way you want it. All our short blocks are 100% machined, CNC Machined and blue-printed to our race wining specs. We will never cut corners just to lessen the price. Please contact us if you’re looking for something not listed and we will be more than happy to give you a quote..
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CNC-9359-E PART NUMBER
CNC Competition 415/421 Short Block, Eagle 3.875 Crank, 6.0 H Beam Rods, Dart Block, Mahle 13.7:1 Pistons$6,099.95
Dart SHP Block, Eagle 3.875 Forged Crankshaft, Eagle 6.0 H Beam Stroker Rods, Mahle 13.7:1 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-9360-E PART NUMBER
CNC Competition 415/421 Short Block, Eagle 3.875 Crank, 6.0 H Beam Rods, Dart Block, Mahle 11.9:1 Pistons$6,199.95
Dart SHP Block, Eagle 3.875 Forged Crankshaft, Eagle 6.0 H Beam Stroker Rods, Mahle 11.9:1 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-9373-S PART NUMBER
CNC Competition 415/421 Short Block, Scat 3.875 Crank, 6.0 H Beam Rods, Dart Block, Diamond 13.6:1 Nitrous Pistons$7,099.95
Dart SHP Block, Scat 3.875 Forged Crankshaft, Scat 6.0 H Beam Stroker 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-9373-CS PART NUMBER
CNC Competition 415/421 Short Block, Compstar 3.875 Crank, 6.0 H Beam Rods, Dart Block, Diamond 13.6:1 Nitrous Pistons$7,150.95
Dart SHP Block, Compstar 3.875 Forged Crankshaft, Compstar 6.0 H Beam Stroker 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-9372-S PART NUMBER
CNC Competition 415/421 Short Block, Scat 3.875 Crank, 6.0 H Beam Rods, Dart Block, Diamond 14.4:1 Pistons$6,950.95
Dart SHP Block, Scat 3.875 Forged Crankshaft, Scat 6.0 H Beam Stroker Rods, Diamond 14.4:1 Race 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-9372-CS PART NUMBER
CNC Competition 415/421 Short Block, Compstar 3.875 Crank, 6.0 H Beam Rods, Dart Block, Diamond 14.4:1 Pistons$6,999.95
Dart SHP Block, Compstar 3.875 Forged Crankshaft, Compstar 6.0 H Beam Stroker Rods, Diamond 14.4:1 Race 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-9359-S PART NUMBER
CNC Competition 415/421 Short Block, Scat 3.875 Crank, 6.0 H Beam Rods, Dart Block, Mahle 13.7:1 Pistons$6,250.95
Dart SHP Block, Scat 3.875 Forged Crankshaft, Scat 6.0 H Beam Stroker Rods, Mahle 13.7:1 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-9359-CS PART NUMBER
CNC Competition 415/421 Short Block, Compstar 3.875 Crank, 6.0 H Beam Rods, Dart Block, Mahle 13.7:1 Pistons$6,299.95
Dart SHP Block, Compstar 3.875 Forged Crankshaft, Compstar 6.0 H Beam Stroker Rods, Mahle 13.7:1 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-9370-S PART NUMBER
CNC Competition 415/421 Short Block, Scat 3.875 Crank, 6.0 H Beam Rods, Dart Block, Diamond 8.4:1 Pistons$6,799.95
Dart SHP Block, Scat 3.875 Forged Crankshaft, Scat 6.0 H Beam Stroker Rods, Diamond 8.4:1 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-9370-CS PART NUMBER
CNC Competition 415/421 Short Block, Compstar 3.875 Crank, 6.0 H Beam Rods, Dart Block, Diamond 8.4:1 Pistons$6,850.95
Dart SHP Block, Compstar 3.875 Forged Crankshaft, Compstar 6.0 H Beam Stroker Rods, Diamond 8.4:1 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.