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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