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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SCA-1-45155 PART NUMBER
Scat 1-45155 SB Ford 331 Street And Strip Performance Rotating Assembly - 9.1:1 Icon Flat Top PistonsSpecial Price $2,370.95 Regular Price $2,420.95
SB Ford 331, Rotating Assembly, Scat 4340 Forged Steel Crankshaft 3.250 Stroke, Scat 5.400 I-Beam Rods, Icon Forged -11cc Flat Top Pistons
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SCA-1-45205 PART NUMBER
Scat 1-45205 SB Ford 331 Street And Strip Performance Rotating Assembly - 9.0:1 Icon Dish PistonsSpecial Price $2,549.95 Regular Price $2,599.95
SB Ford 331, Rotating Assembly, Scat 4340 Forged Steel Crankshaft 3.250 Stroke, Scat 5.400 I-Beam Rods, Icon Forged -12.6cc Dish Pistons
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SCA-1-45160 PART NUMBER
Scat 1-45160 SB Ford 331 Competition Rotating Assembly - 9.6:1 Mahle Flat PistonsSpecial Price $2,486.95 Regular Price $2,536.95
SB Ford 331, Rotating Assembly, Scat 4340 Forged Steel Crankshaft 3.250 Stroke, Scat 5.400 H-Beam Rods, Mahle Forged -6cc Flat Top Pistons
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SCA-1-45210 PART NUMBER
Scat 1-45210 SB Ford 331 Competition Rotating Assembly - 9.0:1 Mahle Dish PistonsSpecial Price $2,561.95 Regular Price $2,611.95
SB Ford 331, Rotating Assembly, Scat 4340 Forged Steel Crankshaft 3.250 Stroke, Scat 5.400 H-Beam Rods, Mahle Forged -16.0cc Dish Pistons
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SCA-1-45255 PART NUMBER
Scat 1-45255 SB Ford 331 Competition Rotating Assembly - 11.4:1 Icon Dome PistonsSpecial Price $2,569.95 Regular Price $2,619.95
SB Ford 331, Rotating Assembly, Scat 4340 Forged Steel Crankshaft 3.250 Stroke, Scat 5.400 H-Beam Rods, Icon Forged 6.8cc Dome Pistons
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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 $2,249.95 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 $2,349.95 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 $2,300.95 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 $2,349.95 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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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