CNC-Motorsports SBC Chevy 355-377-383-400-415-427 long blocks designed for performace racers. Our long blocks have become a huge hit among racers of all types worldwide. We use the best name brands such as AFR, Dart, Brodix, Callies, Lunati, CP-Carillo, Crower, Eagle, Scat, JE, Diamond, Mahle and Manley just to name a few. All our long blocks are 100% machined, CNC Machined and blue-printed to our race wining specs. Custom builds available upon request.
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CNC-355-DLN PART NUMBER
SB Chevy 355 Long Block with AFR Heads - 10.3:1 Compression$10,199.95SB Chevy 350/355, Dart SHP Block, Scat 9000 Cast Steel Crankshaft, Scat 4340 I Beam Rods, Mahle Pistons, Hydraulic Roller Cam, AFR 195 Cylinder Heads, 10.3:1 Compression Ratio 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-383-DLN PART NUMBER
SB Chevy 383 Dart Long Block with AFR Heads - 11.0:1 Compression$10,049.95SB Chevy 383, Dart SHP Block, Scat 9000 Cast Steel Crankshaft, Scat 4340 I Beam Rods, Mahle Pistons, Hydraulic Roller Cam, AFR 195 Cylinder Heads, 11.0:1 Compression Ratio 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-400-DLN PART NUMBER
SB Chevy 400 Dart Long Block with AFR Heads - 10.1:1 Compression$10,099.95SB Chevy 400, Dart SHP Block, Scat 9000 Cast Steel Crankshaft, Scat 4340 I Beam Rods, Mahle Pistons, Hydraulic Roller Cam, AFR 195 Cylinder Heads, 10.1:1 Compression Ratio 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-415-DLN PART NUMBER
SB Chevy 415 Dart Long Block with AFR Heads - 10.4:1 Compression$11,599.95SB Chevy 415, Dart SHP Block, 4340 Forged Steel Crankshaft, 4340 H Beam Rods, SRP Pistons, Hydraulic Roller Cam, AFR 210 Cylinder Heads, 10.4:1 Compression Ratio
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-427C-DLN PART NUMBER
SB Chevy 427 Dart Long Block with AFR Heads - 10.7:1 Compression$11,349.95SB Chevy 427, Dart SHP Block, 4340 Forged Steel Crankshaft, 4340 H Beam Rods, Mahle Pistons, Hydraulic Roller Cam, AFR 210 Cylinder Heads, 10.7:1 Compression Ratio 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-427C-DLNR PART NUMBER
CNC SB Chevy 427 Dart Long Block with AFR 220 Heads - 10.4:1 Compression, Solid Roller$12,299.95CNC SB Chevy 427, Dart SHP Block, 4340 Forged Steel Crankshaft, 4340 H Beam Rods, Mahle Pistons, Solid Street Roller Camshaft, AFR 220 Cylinder Heads, 10.4:1 Compression Ratio
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-415-DLNR PART NUMBER
SB Chevy 415 Dart Long Block with AFR 220 Heads - 10.4:1 Compression, Street Roller Cam$12,549.95SB Chevy 415, Dart SHP Block, 4340 Forged Steel Crankshaft, 4340 H Beam Rods, SRP Pistons, Street Solid Roller Cam, AFR 220 Cylinder Heads, 10.4:1 Compression Ratio
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-400C-DLNR PART NUMBER
CNC SB Chevy 400 Dart Long Block with AFR 220 Heads - 10.2:1 Compression, Solid Roller$11,999.95CNC SB Chevy 400, Dart SHP Block, 4340 Forged Steel Crankshaft, 4340 H Beam Rods, Mahle Pistons, Solid Street Roller Camshaft, AFR 220 Cylinder Heads, 10.2:1 Compression Ratio 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-400-CBST PART NUMBER
SB Chevy 400 Dart Little M Long Block - Boosted$22,649.95Long Block, SBC 400, Dart Little M Block, Callies Crankshaft, Callies Rods, Diamond Pistons, Solid Roller Cam, 245 AFR Heads , Jesel Shaft Rockers 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-415-BDLN PART NUMBER
SB Chevy 415 Dart Street Boosted Long Block with AFR Heads - 8.5:1 Compression$12,149.95SB Chevy 415, Dart SHP Block, 4340 Forged Steel Crankshaft, 4340 H Beam Rods, Diamond Pistons, Hydraulic Roller Cam, AFR 210 Cylinder Heads, 8.5:1 Compression Ratio 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.