Engines & Engine Parts

Welcome to your headquarters for horsepower—the place to get everything you need to build real power and performance! We’ve got competition-proven crate engines, performance-matched...

Welcome to your headquarters for horsepower—the place to get everything you need to build real power and performance! We’ve got competition-proven crate engines, performance-matched top end kits, and complete rotating assemblies from the biggest names in the industry. You can add a set of high-flow cylinder heads to your powerplant, upgrade your valvetrain, improve your oiling system, or drop in a new set of pistons. We also have a complete selection of crankshafts, connecting rods, harmonic balancers, pulleys, and engine brackets. We even have everything you need to restore the horsepower that time has stolen from your...

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JE Pistons Pro Seal Premium Sportsman Series Piston Rings S100S8-4030-5

Piston Rings, Plasma-moly, 4.030 in. Bore, 1/16 in. 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: JEP-S100S8-40305

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Today

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JE Pistons Pro Seal Premium Sportsman Series Piston Rings S100S8-4500-5

Piston Rings, Plasma-moly, 4.500 in. Bore, 1/16 in. 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: JEP-S100S8-45005

5.0 out of 5 stars ( 1 )

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JE Pistons Pro Seal Premium Sportsman Series Piston Rings S100S8-4350-5

Piston Rings, Plasma-moly, 4.350 in. Bore, 1/16 in. 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: JEP-S100S84350-5

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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JE Pistons Lock Rings 990-042-CS

JE Pistons Lock Rings 990-042-CS

Wrist Pin Retainer, Spiral, 1.081 in. Diameter, .042 in. Thick, Each

Part Number: JEP-990-042-CS

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

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JE Pistons Pro Seal Premium Sportsman Series Piston Rings S100S8-4040-5

Piston Rings, Plasma-moly, 4.040 in. Bore, 1/16 in. 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: JEP-S100S8-40405

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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JE Pistons Pro Seal Premium Sportsman Series Piston Rings S100S8-4280-5

Piston Rings, Plasma-moly, 4.280 in. Bore, 1/16 in. 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: JEP-S100S8-42805

5.0 out of 5 stars ( 1 )

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JE Pistons Pro Seal Premium Sportsman Series Piston Rings S100S8-4310-5

Piston Rings, Plasma-moly, 4.310 in. Bore, 1/16 in. 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: JEP-S100S8-43105

Not Yet Reviewed

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JE Pistons Pro Steel Piston Rings JG31F8-4070-0

Piston Rings, Gas Nitrided, 4.070 in. Bore, 1.2mm, 1.5mm, 3.0mm, 8-Cylinder, Set

Part Number: JEP-JG31F8-40700

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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JE Pistons Pro Seal Premium Sportsman Series Piston Rings S100S8-4155-5

Piston Rings, Plasma-moly, 4.155 in. Bore, 1/16 in. 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: JEP-S100S841555

Not Yet Reviewed

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JE Pistons Lock Rings 827-063-MW

Wrist Pin Lock Ring, Wire Lock, Chrome Silicon Steel, .827 Pin Diameter, Each

Part Number: JEP-827-063-MW

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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JE Pistons Lock Rings 990-073-MW

Wrist Pin Retainer, Wire Lock, 0.990 in. Diameter, .073 in. Thick, Each

Part Number: JEP-990-073-MW

Not Yet Reviewed

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JE Pistons Lock Rings 927-073-AS

Wrist Pin Retainer, Spiral, 0.927 in. Diameter, .073 in. Thick, Each

Part Number: JEP-927-073-AS

Not Yet Reviewed

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JE Pistons Premium Race Series Piston Rings JG7708-4600-5

Piston Rings, Premium Race Series, Plasma-moly, 4.600 in. Bore, 0.043 in., 0.043 in., 3.0mm Thickness, V8, Set

Part Number: JEP-JG770846005

Not Yet Reviewed

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JE Pistons Lock Rings 927-042-CS

Wrist Pin Retainer, Spiral, 1.017 in. Diameter, .042 in. Thick, Each

Part Number: JEP-927042CS

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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JE Pistons Lock Rings 927-073-MW

Wrist Pin Retainer, Wire Lock, 0.927 in. Diameter, .073 in. Thick, Each

Part Number: JEP-927-073-MW

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Today

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JE Pistons Premium Race Series Piston Rings J100F1-4310-5

Piston Rings, Plasma-moly, 4.310 in. Bore, 1/16 in, 1/16 in. 3/16 in. Thickness, Single Piston, Set

Part Number: JEP-J100F1-43105

Not Yet Reviewed

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JE Pistons Premium Race Series Piston Rings JG6008-3905

Piston Rings, Premium Race Series, Gas Nitrided, 3.905 in. Bore, 1.5mm, 1.5mm, 3.0mm Thickness, V8, Set

Part Number: JEP-JG6008-3905

Not Yet Reviewed

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JE Pistons Series 51 Wrist Pins 927-2750-15-51S

Piston Wrist Pin, 51 Series, 5115 Steel, 0.927 in. Diameter, 2.750 in. Length, 0.150 in. Wall Thickness, 130 Grams, Straight End, Each

Part Number: JEP-92727501551S

Not Yet Reviewed

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JE Pistons Pro Seal Premium Sportsman Series Piston Rings S100S8-4125-5

Piston Rings, Plasma-Moly, 4.125 in. Bore, 1/16 in., 1/16 in., 3/16 in. Thickness, Set

Part Number: JEP-S100S8-41255

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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JE Pistons Pro Seal Piston Rings JG31F8-4125-2

Piston Rings, Pro Seal, Gas Nitrided, 4.125 in. Bore, 1.2mm, 1.5mm, 3.0mm Thickness, Single Piston, Set

Part Number: JEP-JG31F8-41252

Not Yet Reviewed

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JE Pistons Premium Race Series Piston Rings J100F8-4030-5

Piston Rings, Plasma-moly, 4.030 in. Bore, 1/16 in, 1/16 in. 3/16 in. Thickness, 8-Cylinder, Set

Part Number: JEP-J100F84030-5

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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JE Pistons Pro Seal Premium Sportsman Series Piston Rings S100S8-4560-5

Piston Rings, Plasma-moly, 4.560 in. Bore, 1/16 in. 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: JEP-S100S8-45605

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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JE Pistons Pro Steel Piston Rings JG3108-4000-7

Piston Rings, Gas Nitrided, 4.000 in. Bore, 1.2mm, 1.5mm, 3.0mm Thickness, 8-Cylinder, Set

Part Number: JEP-JG310840007

Not Yet Reviewed

Estimated Ship Date: May 13, 2026 if ordered today

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Estimated Ship Date: May 13, 2026 if ordered today

JE Pistons Lock Rings 927-042-SS

Wrist Pin Retainer, Spiro Lock, Stainless Steel, 0.927 in. Diameter, 0.042 in. Lock Thickness, Each

Part Number: JEP-927-042-SS

Not Yet Reviewed

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JE Pistons Lock Rings 787-050-MW

Wrist Pin Retainer, Wire Lock Type, Chrome Silicon, 0.050 in. Thick, for 0.787 in. Wrist Pin Diameter, Each

Part Number: JEP-787-050-MW

Not Yet Reviewed

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