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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Summit Racing™ SBC Camlock Plate and Cam Bolt Kit SUM-G1792

Summit Racing™ SBC Camlock Plate and Cam Bolt Kit SUM-G1792

Camshaft Bolts and Lock Plate kit, SBC V-8, Cam Bolts and Lock plate, Steel, Black Oxide, 3-Bolt, 5/16, V8, Early non-roller Each

Part Number: SUM-G1792

4.9 out of 5 stars ( 50 )

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Summit Racing™ Camlock Plate and Cam Bolt Kits SUM-G1793

Camshaft Bolts and Lock Plate kit, GM LS-1, Cam Bolts and Lock plate, Steel, Black Oxide, 3-Bolt, 8mm x 1.25, V8, Each

Part Number: SUM-G1793

5.0 out of 5 stars ( 3 )

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Mahle Lock Rings 6458137

Wrist Pin Lock Ring, C-clip Type, Steel, 0.063 in. Thick, 1.100 in. O.D., 0.990 in. Pin Diameter, Each

Part Number: MLE-6458137

4.5 out of 5 stars ( 4 )

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Engine Works Valve Spring and Retainer Lock Systems SRK940

Valve Springs, Valve Spring and Retainer Lock System, Standard Style, Dual, 1.450 in. O.D., Retainers, 7 degree Locks, Kit

Part Number: EW1-SRK940

Not Yet Reviewed

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Summit Racing™ Split Lock Bolt Kits SUM-910140

Valve Cover Bolts, Split Lock, 1/4-20 in. Thread, 0.750 in. UHL, 12-Point, Stainless Steel, Polished, Set of 8

Part Number: SUM-910140

Not Yet Reviewed

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Mahle Lock Rings 2042968

Piston Wrist Pin Retainers, Lock Rings, Wire Lock Type, Clip Has No Tang, Steel, 0.866 in. Pin Diameter, Each

Part Number: MLE-2042968

Not Yet Reviewed

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Engine Works Valve Spring and Retainer Lock Systems SRK927

Valve Springs, Valve Spring and Retainer Lock System, Standard Style, Single, 1.265 in. O.D., Retainers, 7 degree Locks, Kit

Part Number: EW1-SRK927

Not Yet Reviewed

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Engine Works Valve Spring and Retainer Lock Systems SRK900

Valve Springs, Stock Replacement, Mild Hydraulic, 1.260 in. Outside Diameter, Chromoly Retainers, Machined Valve Locks, 7 Degree, Chevy, SB, Kit

Part Number: EW1-SRK900

Not Yet Reviewed

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Mahle Lock Rings 4394680

Wrist Pin Lock Ring, Wire Lock with Tang, Steel, 0.866 in./22mm Pin Diameter, 0.062 in. Thick, Each

Part Number: MLE-4394680

Not Yet Reviewed

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Mahle Lock Rings 6442412

Wrist Pin Lock Ring, Wire Lock with Tang, Steel, 0.944 in./24mm Pin Diameter, 0.062 in. Thick, Each

Part Number: MLE-6442412

Not Yet Reviewed

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Mahle Lock Rings 6458129

Piston Wrist Pin Retainers, Lock Rings, C-clip Type, Steel, 0.912 in. Pin Diameter, Each

Part Number: MLE-6458129

Not Yet Reviewed

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Mahle Lock Rings 9315805

Clips (each) w/o tang, 23mm x 1.6mm Round Wire Lock

Part Number: MLE-9315805

Not Yet Reviewed

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Tuffy Locking Dry Boxes for 2022-2025 FRONTIER - 45001-13-07

Storage Box, Hard Sided, Locking, 75 Quart, Sand Granite, Each

Part Number: TFP-45001-13-07

Not Yet Reviewed

Estimated Ship Date: May 27, 2026 if ordered today

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Estimated Ship Date: May 27, 2026 if ordered today

Mahle Lock Rings 6441489

Wrist Pin Lock Ring, C-Clip without Tang, Steel, .927 Pin Diameter, .063 in. Thick, Each

Part Number: MLE-6441489

5.0 out of 5 stars ( 3 )

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Wiseco Piston Lock Rings CW20

Wrist Pin Retainers, Wire Lock Type, Steel, 0.049 in. Thick, 0.787 in. Diameter, Pair

Part Number: WIS-CW20

5.0 out of 5 stars ( 1 )

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Mahle Lock Rings 9900539

Wrist Pin Lock Ring, C-Clip without Tang, Steel, .945 Pin Diameter, .063 in. Thick, Each

Part Number: MLE-9900539

5.0 out of 5 stars ( 1 )

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Engine Works Valve Spring and Retainer Lock Systems SRK960

Valve Springs, Valve Spring and Retainer Lock System, Standard, Dual, 1.540 in. O.D., Retainers, 10 degree Locks, for Use with Solid Roller Cams, Kit

Part Number: EW1-SRK960

Not Yet Reviewed

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Mahle Lock Rings 6436901

Wrist Pin Lock Ring, C-clip Type, Steel, 0.063 in. Thick, 1.100 in. O.D., 0.927 in. Pin Diameter, Each

Part Number: MLE-6436901

Not Yet Reviewed

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Tuffy Locking Dry Boxes for 2022-2025 FRONTIER - 45001-14-07

Storage Box, Hard Sided, Locking, 75 Quart, Gray Granite, Each

Part Number: TFP-45001-14-07

Not Yet Reviewed

Estimated Ship Date: May 22, 2026 if ordered today

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Estimated Ship Date: May 22, 2026 if ordered today

COMP Cams Ultra Pro Magnum Rocker Arms 1620-16

Rocker Arm; Ultra Pro Magnum; Rocker Arm; Stud 7/16 in. Ratio 1.7 in.; Chevy Big Block 396-454 cid; 16 pc.

Part Number: CCA-1620-16

4.95 out of 5 stars ( 38 )

Estimated Ship Date: Today

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Eagle Street Performance Rotating Assemblies with Silv-O-Lite Claimer Pistons B15404E030

Engine Rotating Assembly, Street, Cast Crank, Hypereutectic Pistons with Pins, Spiro-Locks, I-Beam Rods, Chevy, Small Block Gen I, Kit

Part Number: ESP-B15404E030

Not Yet Reviewed

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Trick Flow® PowerPort® 175 Cylinder Heads for Ford 390-428 TFS-56417002-C00

Cylinder Head, PowerPort® 175, Street Port, Assy, 70cc Chambers, 1.55 in. Springs, Ford 390, 406, 427, 428, Each

Part Number: TFS-56417002-C00

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Today

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Trick Flow® Track Max® Pacaloy Valve Spring and Retainer Kits TFS-2500295

Valve Springs, Dual, 1.295 in. OD, 7 Degree Locks, Steel Retainers, 440 lbs/in., Set of 16

Part Number: TFS-2500295

5.0 out of 5 stars ( 2 )

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PROMAXX Performance Freedom Series Valve Spring and Retainer Kits 7070

Valve Springs, Freedom Series, Single, 1.260 in. O.D., Steel Retainers, Locks, Valve Seals, Kit

Part Number: PMX-7070

1.0 out of 5 stars ( 1 )

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Summit Racing™ Top End Engine Kits for Small Chevy SME-K-415-405

Combo, Aluminum, Cylinder Heads, Manifold, Cam/Lifters 528/539, Gaskets, Bolts, SB Chevy

Part Number: SME-K-415-405

4.0 out of 5 stars ( 1 )

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