CNC-Motorsports offers the best selection of 331 stroker 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, K1, JE/SRP, Diamond, Wiseco, Mahle CP and Keith Black to name a few. CNC-Motorsports can customize any 331 stroker kit to meet your specific needs. All balanced 331 rotating assembly kits are completed in house by CNC-Motorsports. If you don’t see the 331 kit you're wanting feel free to call or email our experienced staff today.
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ESP-64005 PART NUMBER
Eagle 64005 SB Ford 331 Pro Street Rotating Assembly, -16cc Mahle Dish PistonsSpecial Price $2,303.95 Regular Price $2,353.95
Small Block Ford 331 Pro Street Rotating Assembly Kit, Eagle 4340 Forged Steel Crankshaft 3.250 Stroke, Eagle 5.400 I-Beam Rods, 4032 Mahle -16cc Dish Pistons, Fits 1 or 2-PC Rear Seal, Rings and Bearings Included
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ESP-64031 PART NUMBER
Eagle 64031 SB Ford 331 Pro Street Rotating Assembly, -6.2cc Mahle Flat Top PistonsSpecial Price $2,229.95 Regular Price $2,279.95
Small Block Ford 331 Pro Street Rotating Assembly Kit, Eagle 4340 Forged Steel Crankshaft 3.250 Stroke, Eagle 5.400 I-Beam Rods, 4032 Mahle -6.2cc Twisted Wedge Flat Top Pistons, Fits 1 or 2-PC Rear Seal, Rings and Bearings Included
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ESP-64006 PART NUMBER
Eagle 64006 SB Ford 331 Pro Street Rotating Assembly, -6cc Mahle Flat Top PistonsSpecial Price $2,229.95 Regular Price $2,279.95
Small Block Ford 302 Pro Street Rotating Assembly Kit, Eagle 4340 Forged Steel Crankshaft 3.250 Stroke, Eagle 5.400 I-Beam Rods, 4032 Mahle -6cc Flat Top Pistons, Fits 1 or 2-PC Rear Seal, Rings and Bearings Included
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ESP-64007 PART NUMBER
Eagle 64007 SB Ford 331 Pro Street Rotating Assembly, 7cc Mahle Dome PistonsSpecial Price $2,339.95 Regular Price $2,389.95
Small Block Ford 302 Pro Street Rotating Assembly Kit, Eagle 4340 Forged Steel Crankshaft 3.250 Stroke, Eagle 5.400 I-Beam Rods, 4032 Mahle +7cc Dome Pistons, Fits 1 or 2-PC Rear Seal, Rings and Bearings Included
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LUN-32505VRK01LUN PART NUMBER
32505VRK01LUN Lunati SB Ford 331 Voodoo Rotating Assembly - 9.6:1 Icon Dish Pistons$2,928.95
Lunati 4340 Forged Crankshaft 3.250 Stroke, 302 Main, Lunati 5.400 H-Beam Rods, Icon Premium Forged -12.6cc Dish Pistons, 2-PC Rear Seal Learn More -
LUN-32505VRK02LUN PART NUMBER
32505VRK02LUN Lunati SB Ford 331 Voodoo Rotating Assembly - 10.5:1 Icon Dish Pistons$2,928.95
Lunati 4340 Forged Crankshaft 3.250 Stroke, 302 Main, Lunati 5.400 H-Beam Rods, Icon Premium Forged -4.8cc Flat Top Pistons, 2-PC Rear Seal Learn More -
ESP-16351 PART NUMBER
Eagle 16351 SB Ford 331 Street Strip Rotating Assembly, -11cc Icon Flat Top Pistons$1,463.95
SB Ford 331 Street Strip Rotating Assembly, Eagle Cast Steel Crankshaft 3.250 Stroke, Eagle 5.400 I-Beam Rods, Icon FHR Forged -11cc Flat Top Pistons, Fits 1 or 2-PC Rear Seal, Rings and Bearings Included
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ESP-16323 PART NUMBER
Eagle 16323 SB Ford 347 Street Strip Rotating Assembly, -11cc Icon Flat Top Pistons$1,463.95
Ford 347 Street Strip Rotating Assembly, Eagle Cast Steel Crankshaft 3.400 Stroke, Eagle 5.400 I-Beam Rods, Icon FHR Forged -11cc Flat Top Pistons, Fits 1 or 2-PC Rear Seal, Rings and Bearings Included
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ESP-64251 PART NUMBER
Eagle 64251 SB Ford 331 Pro Street Rotating Assembly, 9.5 Icon Flat Top PistonsSpecial Price $2,142.95 Regular Price $2,192.95
Small Block Ford 331 Street Strip Rotating Assembly Kit, Eagle 4340 Forged Steel Crankshaft 3.250 Stroke, Eagle 5.400 I-Beam Rods, Icon 4032 Forged -11cc Flat Top Pistons, Fits 1 or 2-PC Rear Seal, Rings and Bearings Included
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ESP-14251 PART NUMBER
Eagle 14251 SB Ford 331 Pro Competition Rotating Assembly, -11cc Icon Flat Top PistonsSpecial Price $2,266.95 Regular Price $2,316.95
SBF 331 Pro Rotating Assembly Kit, Eagle 4340 Forged Steel Crankshaft 3.250 Stroke, Eagle 5.400 H-Beam Rods, Icon 4032 Forged -11cc Flat Top Pistons, Fits 1 or 2-PC Rear Seal, Rings and Bearings Included
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