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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CNC-3310-TFS PART NUMBER
Eagle SB Ford 331 Competition Rotating Assembly, 10.2:1 SRP Pistons, Fits TFS HeadsSpecial Price $2,234.95 Regular Price $2,299.95
SB Ford 302/331 Rotating Assembly Kit, Eagle 4340 Forged Steel Crankshaft 3.250 Stroke, Eagle 5.400 H-Beam Rods, SRP 4032 Forged -5cc Flat Top Pistons, Fits 1 or 2-PC Rear Seal, Rings and Bearings Included, Pistons fit Trick Flow Twisted Wedge Heads
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CNC-3311-TFS PART NUMBER
Eagle SB Ford 331 Competition Rotating Assembly, 9.4:1 SRP Pistons, Fits TFS HeadsSpecial Price $2,334.95 Regular Price $2,399.95
SB Ford 302/331 Rotating Assembly Kit, Eagle 4340 Forged Steel Crankshaft 3.250 Stroke, Eagle 5.400 H-Beam Rods, SRP 4032 Forged -12cc Dish Pistons, Fits 1 or 2-PC Rear Seal, Rings and Bearings Included, Pistons fit Trick Flow Twisted Wedge Heads
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CNC-3312-SRP PART NUMBER
Eagle SB Ford 331 Competition Rotating Assembly, 10.4:1 SRP PistonsSpecial Price $2,285.95 Regular Price $2,350.95
SB Ford 302/331 Rotating Assembly Kit, Eagle 4340 Forged Steel Crankshaft 3.250 Stroke, Eagle 5.400 H-Beam Rods, SRP 4032 Forged -5cc Flat Top Pistons, Fits 1 or 2-PC Rear Seal, Rings and Bearings Included, Fits stock and most aftermarket 20 degree inline valve heads
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CNC-3313-SRP PART NUMBER
Eagle SB Ford 331 Competition Rotating Assembly, 9.0:1 SRP PistonsSpecial Price $2,334.95 Regular Price $2,399.95
SB Ford 302/331 Rotating Assembly Kit, Eagle 4340 Forged Steel Crankshaft 3.250 Stroke, Eagle 5.400 H-Beam Rods, SRP 4032 Forged -15cc Dish Pistons, Fits 1 or 2-PC Rear Seal, Rings and Bearings Included, Fits stock and most aftermarket 20 degree inline valve heads
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CNC-3477-MRM PART NUMBER
SB Ford 331 Pro Rotating Assembly with Molnar Crank & Rod, Mahle -6.5cc Flat Top Pistons$2,793.95
SB Ford 331 Stroker Rotating Assembly Kit, Molnar Crankshaft 3.250 Stroke, Molnar 5.400 H-Beam Rods, Mahle -6.5cc Flat Top Pistons,, Fits 1 or 2-PC Rear Seal
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CNC-3478-MRM PART NUMBER
SB Ford 331 Rotating Assembly with Molnar Crank & Rod, Mahle -16cc Dish Pistons$2,856.95
SB Ford 331 Stroker Rotating Assembly Kit, Molnar Crankshaft 3.400 Stroke, Molnar 5.400 H-Beam Rods, Mahle -16cc Dish Pistons,, Fits 1 or 2-PC Rear Seal
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CNC-3479-MRM PART NUMBER
SB Ford 331 Pro Rotating Assembly with Molnar Crank & Rod, Mahle 10.0:1 Pistons For Twisted Wedge Head$2,793.95
SB Ford 331 Stroker Rotating Assembly Kit, Molnar Crankshaft 3.400 Stroke, Molnar 5.400 H-Beam Rods, Mahle -6cc Flat Top Pistons, Fits 1 or 2-PC Rear Seal
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