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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COMP Cams Specialty Camshafts 12-865-9

COMP Cams Specialty Camshafts 12-865-9

Camshaft; Drag Race; Camshaft; Mech. Roller; 4500-7800rpm; Adv. Dur. 307 Int./317 Exh.; Valve Lift .684 Int./.

Part Number: CCA-12-865-9

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

Dorman Idler Pulleys 419-684

Idler Pulleys, Serpentine, 6-groove, Steel, Black, for Nissan, Lexus, Toyota, Each

Part Number: RNB-419-684

Not Yet Reviewed

Estimated Ship Date: Apr 22, 2026 if ordered today

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Estimated Ship Date: Apr 22, 2026 if ordered today

COMP Cams Oval Track Camshafts 12-684-5

Camshaft, Mechanical Flat Tappet, Advertised Duration 270/274, Lift .483/.483, Chevy, Small Block, Each

Part Number: CCA-12-684-5

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

Clevite P-Series Rod Bearings CB684P10(8)

Olds. V8, 260-307-350-403, 1964-90

Part Number: CLE-CB684P108

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Clevite P-Series Rod Bearings CB-684P(8)

Olds. V8, 260-307-350-403, 1964-90

Part Number: CLE-CB684P8

Not Yet Reviewed

Estimated Ship Date: May 15, 2026 if ordered today

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Estimated Ship Date: May 15, 2026 if ordered today

ACDelco Gold Oil Filters 19385586

Oil Filter, Professional, Cartridge, Ford, Lincoln, Each

Part Number: ADO-PF684G

Not Yet Reviewed

Estimated Ship Date: Today

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Standard Motor Engine Variable Timing Sprockets for 2017-2018 86 - VVT684

Engine Variable Valve Timing Sprocket

Part Number: SMP-VVT684

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

Clevite P-Series Rod Bearings CB-684P-20

OLDSMOBILE V8, 260-307-33

Part Number: CLE-CB684P20-AM

Not Yet Reviewed

Estimated Ship Date: Today

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Clevite P-Series Rod Bearings CB-684P

OLDSMOBILE V8, 260-307-33

Part Number: CLE-CB684P-AM

Not Yet Reviewed

Estimated Ship Date: Today

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Clevite P-Series Rod Bearings CB-684P-20(8)

Olds. V8, 260-307-350-403, 1964-90

Part Number: CLE-CB684P208

Not Yet Reviewed

Estimated Ship Date: May 15, 2026 if ordered today

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Estimated Ship Date: May 15, 2026 if ordered today

Clevite P-Series Rod Bearings CB-684P-10

OLDSMOBILE V8, 260-307-33

Part Number: CLE-CB684P10-AM

Not Yet Reviewed

Estimated Ship Date: Today

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Moroso No-Weld Oil Fill Cap Kits 68485

Valve Cover Oil Fill Cap, Screw-in, Aluminum, Black Anodized, Moroso Cap Top Style, 1.50 in. Diameter, Kit

Part Number: MOR-68485

3.86 out of 5 stars ( 7 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Mr. Gasket Aluminum Valve Covers 6843G

Valve Covers, Tall, Perimeter Bolt, Fabricated Aluminum, Natural, Ford, Small Block Windsor, Pair

Part Number: MRG-6843G

4.43 out of 5 stars ( 14 )

Estimated Ship Date: Today

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PRW Sportsman Steel Roller Tip Rocker Arms 68455752

Rocker Arms, Sportsman Series, Stud Mount, Roller Tip, 1.52 Ratio, Fits 7/16 in. Stud, With Oil Deflector, Pontiac, Set of 16

Part Number: PQX-68455752

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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PRW Sportsman Steel Roller Tip Rocker Arms 68454717

Rocker Arms, Sportsman Series, Stud Mount, Roller Tip, 1.7 Ratio, Fits 7/16 in. Stud, With Oil Deflector, Chevy, Big Block, Set of 16

Part Number: PQX-68454717

Not Yet Reviewed

Estimated Ship Date: Today

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Moroso Fabricated Aluminum Valve Covers 68481

Valve Covers, Tall, Perimeter Bolt, Fabricated Aluminum, Natural, Chevy, Big Block, Pair

Part Number: MOR-68481

Not Yet Reviewed

Estimated Ship Date: Today

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Moroso Diecast Aluminum Valve Covers 68425

Valve Covers, Tall, Aluminum, Polished, Plain, Chevy, Big Block, Pair

Part Number: MOR-68425

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Crower Performance Valve Springs 68404-16

Valve Springs, Dual, 1.405 in. Outside Diameter, 338 lbs./in. Rate, 0.950 in. Coil Bind Height, Set of 16

Part Number: CRO-68404-16

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Today

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Moroso Fabricated Aluminum Valve Covers 68478

Valve Covers, SBF 302/351W, Fab. Aluminum, Black Anodized

Part Number: MOR-68478

Not Yet Reviewed

Estimated Ship Date: Today

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Moroso Fabricated Aluminum Valve Covers 68482

Valve Covers, Tall, Perimeter Bolt, Fabricated Aluminum, Natural, Chevy, Big Block, Pair

Part Number: MOR-68482

2.6 out of 5 stars ( 5 )

Estimated Ship Date: Today

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Moroso Fabricated Aluminum Valve Covers 68479

Valve Covers, Tall, Perimeter Bolt, Fabricated Aluminum, Natural, Intake Pocket, Exhaust Pocket, Chevy, Big Block, Pair

Part Number: MOR-68479

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Moroso Fabricated Aluminum Valve Covers 68456

Valve Covers, Tall, Aluminum, Natural, Moroso Logo, Chevy, Big Block, Pair

Part Number: MOR-68456

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

PRW Sportsman Steel Roller Tip Rocker Arms 68455765

Rocker Arms, Sportsman Series, Stud Mount, Roller Tip, 1.65 Ratio, Fits 7/16 in. Stud, With Oil Deflector, Pontiac, Set of 16

Part Number: PQX-68455765

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Moroso Diecast Aluminum Valve Covers 68411

Valve Covers, Tall, Aluminum, Black, Moroso Logo, Chevy, Small Block, Pair

Part Number: MOR-68411

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Moroso Billet Aluminum Valve Covers 68486

V/C, BBC, POCK, TUBES, BILLET, NO LOGO

Part Number: MOR-68486

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 28, 2026 if ordered today

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Estimated Ship Date: Apr 28, 2026 if ordered today

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