2003 Holley Parts and Accessories

Lifter Valley Plates, LS Valley, Billet Aluminum, Trussed with Oil Fill, Natural Finish, 10-Bolt Pattern, Chevy, LS, 5.7L, Each

Part Number: HLY-241-367

5.0 out of 5 stars ( 1 )

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Alternator and Power Steering Brackets, Driver Side, Cylinder Head Mount, Aluminum, Black Powdercoated, Chevy, Small Block, Each

Part Number: HLY-20-135BK

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Accessory Drive Systems, LS Mid-Mount, Serpentine, Alternator, Power Steering, Water Pump, AC, Pulleys, 6-groove, Black Finish, Chevy, 4.8-7.0L, Kit

Part Number: HLY-20-190BK

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Estimated Ship Date: Jan 15, 2026 if ordered today

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Air Cleaners, Retrofilter, Drive-By-Wire, 14 in. Round, Dual Snorkel, Aluminum, Chrome, Cotton Gauze Filter, Red, GM LS 4-Bolt 92mm Throttle Body, Kit

Part Number: HLY-120-520

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Oil Pans, Gen III Hemi, Retrofit, Non-VVT, Wet Sump, Rear, 1-piece Main Seal, 6.2 Quart, Dipstick Passenger Side, Aluminum, Natural, Hardware, Each

Part Number: HLY-302-75

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Fuel Pumps, OEM Style, EFI, Electric, In-Tank, 450 lph, 60 psi, 12V, Sending Unit, 220-20 ohms, -8 AN Ports, No Return, E85 Fuel, Dodge, Ram, Kit

Part Number: HLY-12-324

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Brackets, Sniper EFI, Throttle Cable Mount, Intake Manifold, Aluminum, Black, for Sniper EFI, Fabricated, with Hardware, Chevy, LS, 5.7L, 6.0L, Kit

Part Number: SNE-870017

5.0 out of 5 stars ( 1 )

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Idler Pulleys, Holley, Serpentine Style, Black Finish, 2.75 in. Diameter, 76 mm, Smooth, Steel, for Holley LS Accessory Drive Brackets Only, Each

Part Number: HLY-97-150

5.0 out of 5 stars ( 2 )

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Fuel Rails, Holley EFI, LS Fuel Rails, Aluminum, Black, -8 AN O-ring Inlet, Hardware, for Hi-Ram Intakes, Dual Quad, Cathedral Port, Chevy, 5.7L, Kit

Part Number: HLY-534-204

5.0 out of 5 stars ( 1 )

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Intake Manifold Adapter, Adapts Small Port Engines for use with Holley Hi-Ram Intakes, 0.945 in. Thickness, Billet Aluminum, Mopar, Gen III Hemi, Kit

Part Number: HLY-300-652

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Valve Covers, Aluminum LS, Centerbolt, Tall, Plain, Cast Aluminum, Natural Finish, Chevy, LS, 4.8-7.0L, Pair

Part Number: HLY-241-110

4.8 out of 5 stars ( 15 )

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Accessory Brackets, LS Engine, Cast Aluminum, Natural Finish, Alternator, Power Steering, Chevy, LS, 4.8-7.0L, Kit

Part Number: HLY-20-155

4.33 out of 5 stars ( 3 )

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Valve Covers, Aluminum LS, Center and Perimeter Bolt, Tall, Finned, Cast Aluminum, Polished Finish, Two-Piece, Chevy, LS, 4.8-7.0L, Pair

Part Number: HLY-241-181

5.0 out of 5 stars ( 3 )

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Water Pump Fasteners, Holley, LT/LS Cooling Manifold, Replacement, Hardware, Steel, Cadmium Finish, GM, Gen III/IV, LS Engines, Kit

Part Number: HLY-97-162

4.0 out of 5 stars ( 1 )

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Valve Covers, Vintage Series, Centerbolt, Stock Height, Finned, Cast Aluminum, Polished Finish, Chevy, LS, 4.8-7.0L, Pair

Part Number: HLY-241-131

4.0 out of 5 stars ( 1 )

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Air Cleaners, Retrofilter, Drive-By-Wire, 16 in. Round, Aluminum, Black, Cotton Gauze Filter, Red, GM LS 4-Bolt 92mm Throttle Body, Kit

Part Number: HLY-120-501

1.0 out of 5 stars ( 1 )

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Fuel Rails, Sniper EFI, Billet Aluminum, Black Anodized, -8 AN Inlet, Hardware, Fittings, for Sniper EFI Intakes, Chevy, LS, 5.7L, 6.0L, Kit

Part Number: SNE-850001

5.0 out of 5 stars ( 4 )

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Engine Management Systems, Terminator X MAX, 8-EV1 Injectors, 8-Coil, Trans Control, Sensors, USB Tune Cable, Chevy, LS, 5.7L, 1x Cam, 24x Crank, Kit

Part Number: HLY-550-926T

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Estimated Ship Date: Jan 19, 2026 if ordered today

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Intake Manifolds, LS Mid-Rise, Standard Deck, Single Carburetor, Single Plane, 2,500-7,000 RPM Range, Aluminum, Black Finish, Chevy, 4.8-6.0L, Each

Part Number: HLY-300-132BK

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Intake Manifolds, Sniper EFI, Dual Plenum, Cathedral Port, 102mm Throttle Body, 1,600-6,800 RPM, Aluminum, Black, Chevy, LS, 4.8-6.0L, Each

Part Number: SNE-820242

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Estimated Ship Date: Jan 20, 2026 if ordered today

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Alternator and Power Steering Brackets, Aluminum, Natural, Chevy, Small Block LS, Each

Part Number: HLY-20-135

4.67 out of 5 stars ( 12 )

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Power Steering Brackets, Mid LSA/LS, Accessory Drive Bracket, Power Steering, Aluminum, Satin Finish, Chevy, 4.8L, 5.3L, 5.7L, 6.0L, 6.2L, 7.0L, Kit

Part Number: HLY-20-165

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Water Neck Thermostat Housings, Replacement, Aluminum, 1.50 in. Outlet, O-ring Seal, with Thermostat, for LT/LS Mid-Mount Accessory Drive Only, Each

Part Number: HLY-97-169

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Weatherproof Connectors, Holley EFI, GM LSx Engine, Main Harness Connectors, Connectors, Pins, Seals, Cavity Plugs included, Kit

Part Number: HLY-570-103

5.0 out of 5 stars ( 1 )

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Lifter Valley Plates, LS Valley, Billet Aluminum, Trussed with Oil Fill, Black Anodized, 10-Bolt Pattern, Chevy, LS, 5.7L, Each

Part Number: HLY-241-369

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