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ESP-35550 PART NUMBER
Eagle 35550 SB Chevy 415/421 Pro Rotating Assembly, 10.8cc JE Dome Pistons, 350 MainsSpecial Price $2,990.95 Regular Price $3,040.95
Small Block Chevy 415/421 Pro Rotating Assembly Kit, Eagle 4340 Forged steel Crankshaft, 3.875 Stroke, 350 Main, Eagle 6.000 H-Beam Rods, JE 2618 Forged +10.8cc Dome Pistons, 2-PC Rear Seal, Performance Rings and Bearings Included
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ESP-35540 PART NUMBER
Eagle 35540 SB Chevy 415/421 Stroker Rotating Assembly, 5.6cc JE Dome Pistons, 350 MainsSpecial Price $2,990.95 Regular Price $3,040.95
Small Block Chevy 415/421 Rotating Assembly Kit, Eagle 4340 Forged Steel Crankshaft, 3.875 Stroke, 350 Main, Eagle 6.000 H-Beam Rods, JE 2618 Forged +5.6cc Dome Pistons, 2-PC Rear Seal, Performance Rings and Bearings Included Learn More -
CS-422-CPF PART NUMBER
Compstar SB Chevy 415/421 Stroker Kit, Balanced Assembly, CP Pistons 11.6:1 Flat Top$2,996.95
SB Chevy 415 421, Compstar Crankshaft 3.875 Stroke, 350 or 400 Main, Compstar 6.000 H Beam Rods, CP Pistons -6.9cc Flat Top, Rings, Bearings, Balanced Assembly Learn More -
CS-421-CPD PART NUMBER
Compstar SB Chevy 415/421 Stroker Kit, Balanced Assembly, CP Pistons 13.5:1 Dome$3,044.95
SB Chevy 415 421, Compstar Crankshaft 3.875 Stroke, 350 or 400 Main, Compstar 6.000 H Beam Rods, CP Pistons +5.1cc Dome, Rings, Bearings, Balanced Assembly Learn More -
MOL-4222-NOS PART NUMBER
Molnar SB Chevy 415/421 Nitrous Rotating Assembly 13.5:1 Diamond Pistons$4,200.95
SB Chevy, 415 421 Stroker, Molnar Crankshaft 3.875 Stroke, Molnar 5.850 Power Adr Plus Stroker rods, Diamond Nitrous Pistons +9cc Dome, 2-PC Rear Seal, Nitrous kit
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CNC-421-MRCPD PART NUMBER
Molnar SB Chevy 415/421 Stroker Kit, Balanced Assembly, CP Pistons 13.5:1 Dome$2,999.95
SB Chevy 415 421, Molnar Crankshaft 3.875 Stroke, 350 or 400 Main, Molnar 6.000 H Beam Rods, CP Pistons +5.1cc Dome, Rings, Bearings, Balanced Assembly
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CNC-422-MRCPF PART NUMBER
Molnar SB Chevy 415/421 Stroker Kit, Balanced Assembly, CP Pistons 11.6:1 Flat Top$2,950.95
SB Chevy 415 421, Molnar Crankshaft 3.875 Stroke, 350 or 400 Main, Molnar 6.000 H Beam Rods, CP Pistons -6.9cc Flat Top, Rings, Bearings, Balanced Assembly
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CNC-1264-MR PART NUMBER
SB Chevy 415/421 Molnar Rotating Assembly, Balanced - 8.5:1 Diamond Race Dish Pistons$3,550.95
SB Chevy, Molnar 4340 Forged Crankshaft 3.875 Stroke, 350 or 400 Main, 6.000 H Beam Rods, Diamond -38cc Race Dish Pistons, 2-PC Seal, Balanced
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CNC-1266-MR PART NUMBER
CNC SB Chevy 415/421 Molnar Rotating Assembly - 14.7:1 Diamond Race Dome Pistons$3,699.95
SB Chevy, Molnar 4340 Forged Crankshaft 3.875 Stroke, 350 or 400 Main, 6.000 H Beam Rods, Diamond 11cc Race Dome Pistons, 2-PC Seal
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CNC-1269-MR PART NUMBER
CNC SB Chevy 415/421 Molnar Rotating Assembly - 13.8:1 Diamond Nitrous Dome Pistons$3,799.95
SB Chevy, Molnar 4340 Forged Crankshaft 3.875 Stroke, 350 or 400 Main, 6.000 H Beam Rods, Diamond 7cc Nitrous Dome Pistons, Total Seal AP Steel Rings, 2-PC Seal
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CNC-Motorsports offers the best selection of Small Block Chevy 415-421 rotating assembly kits. We offer street kits with pump gas pistons to wild fully forged 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 stroker kit you're wanting feel free to call or email our experienced staff today.