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-16021 PART NUMBER
Eagle 16021 SB Ford 331 Street Strip Rotating Assembly, -10cc Keith Black Dish Pistons$1,311.95
Ford 331 Street Strip Rotating Assembly, Cast Crankshaft 3.250 Stroke, 5.400 I-Beam Rods, Keith Black Hypereutectic -10cc Dish Pistons, 1 or 2-PC Rear Seal, Rings and Bearings Included
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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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CNC-3480-CSM PART NUMBER
Callies Compstar SBF 331 Stroker Kit with Mahle 8.9:1 Pistons For Twisted Wedge Head$2,629.95
SB Ford 331 Stroker Rotating Assembly Kit, Compstar Crankshaft 3.400 Stroke, Compstar 5.400 H-Beam Rods, Mahle -16cc Dish Pistons, Fits 1 or 2-PC Rear Seal
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