CNC-Motorsports offers the best selection of Small Block Chevy 400 406 rotating assembly kits. We offer street kits with pump gas pistons to wild fully forged lightweight rotating assembly kits to meet your racing needs. We offer quality name brands such as; Eagle, Scat, Callies, Compstar, Crower, Lunati, JE/SRP, Diamond, Wiseco, Mahle CP and Keith Black to name a few. CNC-Motorsports can customize any stroker kit to meet your specific needs. All balanced rotating assembly kits are completed in house by CNC-Motorsports. If you don’t see the rotating assembly kit you're wanting feel free to call or email our experienced staff today.
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CS-400-CPD PART NUMBER
Compstar SB Chevy 400 Balanced Assembly, CP Pistons 13.0:1 Dome$3,044.95
SB Chevy 400, Compstar Crankshaft 3.750 Stroke, 350 or 400 Main, Compstar 6.000 H Beam Rods, CP Pistons +5cc Dome, Rings, Bearings, Balanced Assembly Learn More -
CS-402-CP PART NUMBER
Compstar SB Chevy 400 Balanced Assembly, -20.5cc Dish CP Pistons$3,044.95
SB Chevy 400, Compstar Crankshaft 3.750 Stroke, 350 or 400 Main, Compstar 6.000 H Beam Rods, CP Pistons -20.5cc Dish, Rings, Bearings, Balanced Assembly Learn More -
CS-401-CPF PART NUMBER
Compstar SB Chevy 400 Balanced Assembly, -6.9cc Flat Top CP Pistons$2,996.95
SB Chevy 400, Compstar Crankshaft 3.750 Stroke, 350 or 400 Main, Compstar 6.000 H Beam Rods, CP Pistons -6.9cc Flat Top, Rings, Bearings, Balanced Assembly Learn More -
CNC-1205-MR PART NUMBER
CNC SB Chevy 400 Molnar Rotating Assembly - 8.6:1 Diamond Race Dish Pistons$3,499.95
SB Chevy, Molnar 4340 Forged Crankshaft 3.750 Stroke, 350 or 400 Main, 6.000 H Beam Rods, Diamond -36cc Race Dish Pistons, 2-PC Seal
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CNC-1206-MR PART NUMBER
CNC SB Chevy 400 Molnar Rotating Assembly - 13.7:1 Diamond Dome Pistons$3,399.95
SB Chevy, Molnar 4340 Forged Crankshaft 3.750 Stroke, 350 or 400 Main, 6.000 H Beam Rods, Diamond 8cc Dome Pistons, 2-PC Seal
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CNC-1204-MR PART NUMBER
CNC SB Chevy 400 Molnar Rotating Assembly - 9.7:1 Diamond Dish Pistons$3,399.95
SB Chevy, Molnar 4340 Forged Crankshaft 3.750 Stroke, 350 or 400 Main, 6.000 H Beam Rods, Diamond -22cc Dish Pistons, 2-PC Seal
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CNC-1207-MR PART NUMBER
CNC SB Chevy 400 Molnar Rotating Assembly - 14.7:1 Diamond Race Dome Pistons$3,650.95
SB Chevy, Molnar 4340 Forged Crankshaft 3.750 Stroke, 350 or 400 Main, 6.000 H Beam Rods, Diamond 13cc Race Dome Pistons, 2-PC Seal
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CNC-1209-MR PART NUMBER
CNC SB Chevy 400 Molnar Rotating Assembly - 13.8:1 Diamond Nitrous Dome Pistons$3,443.95
SB Chevy, Molnar 4340 Forged Crankshaft 3.750 Stroke, 350 or 400 Main, 6.000 H Beam Rods, Diamond 9cc Nitrous Dome Pistons, Total Seal AP Steel Rings, 2-PC Seal
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