CNC-Motorsports offers the best in 427 LS cubic inch LS 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, JE, Diamond, and Total Seal 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..
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CNC-LS4271-PRO PART NUMBER
LS 427 Pro Short Block, 11.0:1 LS2K Diamond Pistons, Fits 12 Degree Heads$8,999.95
GM LS 427 Short Block, Cast Iron Dart SHP Next Block, Callies Compstar 4.000 Crankshaft, Callies Compstar 6.125 H Beam Rods with ARP 2000 Bolts, LS2K Diamond Pistons -4.8cc Flat Top, Fully Machined and Blue-printed, Rated to 1500 horsepower, Pistons Fit 12 Degree Heads
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-LS427-Outlaw PART NUMBER
LS 427 Outlaw Short Block, 11.0:1 LS2K Diamond Pistons, Fits 12 Degree Heads, 2000+ Horsepower Rated$11,199.95
GM LS 427 Short Block, Dart SHP LS Next Pro Block, Callies Apex 4.000 CCW Crankshaft, Oliver Speedway 6.125 Connecting Rods with ARP 2000 Bolts, LS2K Diamond Pistons -4.8cc Flat Top, Fully Machined and Blue-printed, Rated to 2000 + horsepower, Pistons Fits 12 Degree Heads
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-LS4271-Outlaw PART NUMBER
LS 427 Outlaw Short Block, 9.5:1 LS2K Diamond Pistons, Fits 12 Degree Heads, 2000+ Horsepower Rated$11,199.95
GM LS 427 Short Block, Dart SHP LS Next Pro Block, Callies Apex 4.000 CCW Crankshaft, Oliver Speedway 6.125 Connecting Rods with ARP 2000 Bolts, LS2K Diamond Pistons -20cc Dish Pistons, Fully Machined and Blue-printed, Rated to 2000 + horsepower, Pistons Fits 12 Degree Heads
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-LS4272-Outlaw PART NUMBER
LS 427 Outlaw Short Block, 11.3:1 LS2K Diamond Pistons, Fits 15 Degree Heads, 2000+ Horsepower Rated$11,319.95
GM LS 427 Short Block, Dart SHP LS Next Pro Block, Callies Apex 4.000 CCW Crankshaft, Oliver Speedway 6.125 Connecting Rods with ARP 2000 Bolts, LS2K Diamond Pistons -3cc Flat Top Pistons, Fully Machined and Blue-printed, Rated to 2000 + horsepower, Pistons Fits 15 Degree Heads
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-LS4273-Outlaw PART NUMBER
LS 427 Outlaw Short Block, 9.5:1 LS2K Diamond Pistons, Fits 15 Degree Heads, 2000+ Horsepower Rated$11,319.95
GM LS 427 Short Block, Dart SHP LS Next Pro Block, Callies Apex 4.000 CCW Crankshaft, Oliver Speedway 6.125 Connecting Rods with ARP 2000 Bolts, LS2K Diamond Pistons -21cc Dish Pistons, Fully Machined and Blue-printed, Rated to 2000 + horsepower, Pistons Fits 15 Degree Heads
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-LS4272-PRO PART NUMBER
LS 427 Pro Short Block, 9.5:1 LS2K Diamond Pistons, Fits 12 Degree Heads$8,550.95
GM LS 427 Short Block, Cast Iron Dart SHP Next Block, Callies Compstar 4.000 Crankshaft, Callies Compstar 6.125 H Beam Rods with ARP 2000 Bolts, LS2K Diamond Pistons -20cc Dish, Fully Machined and Blue-printed, Rated to 1500 horsepower, Pistons Fit 12 Degree Heads
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-LS4273-PRO PART NUMBER
LS 427 Pro Short Block, 11.3:1 LS2K Diamond Pistons, Fits 15 Degree Heads$8,850.95
GM LS 427 Short Block, Cast Iron Dart SHP Next Block, Callies Compstar 4.000 Crankshaft, Callies Compstar 6.125 H Beam Rods with ARP 2000 Bolts, LS2K Diamond Pistons -3cc Flat Top, Fully Machined and Blue-printed, Rated to 1500 horsepower, Pistons Fit 15 Degree Heads
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-LS4274-PRO PART NUMBER
LS 427 Pro Short Block, 9.5:1 LS2K Diamond Pistons, Fits 15 Degree Heads$8,850.95
GM LS 427 Short Block, Cast Iron Dart SHP Next Block, Callies Compstar 4.000 Crankshaft, Callies Compstar 6.125 H Beam Rods with ARP 2000 Bolts, LS2K Diamond Pistons -21cc Dish, Fully Machined and Blue-printed, Rated to 1500 horsepower, Pistons Fit 15 Degree Heads
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-13004-EDS PART NUMBER
CNC Competition Dart LS 427 Short Block, Eagle Crank, JE 11:6:1 Pistons (Assymetrical)$8,099.95
LS 427 Stroker, Dart LS Next Iron Block, Eagle 4340 Crankshaft, Eagle H Beam Rods, JE 11.6:1 Flat Top Pistons (Assymetrical) 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-13005-EDS PART NUMBER
CNC Competition Dart LS 427 Short Block, Eagle Crank, JE 8.8:1 Pistons (Assymetrical)$8,099.95
LS 427 Stroker, Dart LS Next Iron Block, Eagle 4340 Crankshaft, Eagle H Beam Rods, JE 8.8:1 Dish Pistons (Assymetrical) 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.