2003 Holley Parts and Accessories

Intake Manifolds, LS Mid-Rise, Standard Deck, Single Carburetor, Dual Plane, 1,500-6,500 RPM Range, Aluminum, Black Finish, Chevy, 4.8-6.0L, Each

Part Number: HLY-300-130BK

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Weatherproof Connectors, Holley EFI, Replacement, Hall Effect Sensor Connector, Metripack, 3-pin Female, Black, Pins, Seals, TPA, for 554-118, Each

Part Number: HLY-570-223

5.0 out of 5 stars ( 1 )

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Alternator Brackets, Low-Mount, Aluminum, Black, Chevy, Kit

Part Number: HLY-20-166BK

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Estimated Ship Date: Jan 19, 2026 if ordered today

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Intake Manifolds, EFI, LS Mid-Rise, Cathedral Port Head, Multi-port, 105mm Bore, Standard Deck, Aluminum, Satin Finish, Chevy, 4.8-6.0L, Each

Part Number: HLY-300-127

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Intake Manifolds, Sniper EFI, Fabricated, Cathedral Port, 102mm Throttle Body, 2,200-6,800 RPM, Aluminum, Black, Chevy, LS, 4.8-6.0L, Each

Part Number: SNE-820042-1

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

Part Number: SNE-870016

5.0 out of 5 stars ( 1 )

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Valve Covers, Aluminum LS, Centerbolt, Tall, Plain Top, Cast Aluminum, Black Satin, Baffled, Chevy, LS, 4.8L, 5.3L, 5.7L, 6.0L, 6.2L, 7.0L, Pair

Part Number: HLY-241-97

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Valve Covers, LS Ford Style, Cast Aluminum, Center Bolt, Plain, Cast Aluminum, Natural Finish, Two-Piece, Chevy, LS, 4.8-7.0L, Pair

Part Number: HLY-241-185

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Valve Covers, Aluminum LS, Centerbolt, Tall, Chevrolet Logo, Cast Aluminum, Orange Gloss, Baffled, Chevy, LS, 5.7L, 6.0L, 6.2L, 7.0L, Pair

Part Number: HLY-241-403

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Intake Manifolds, LS Split Design, Carbureted, Cathedral Port Head, Single Plane, 4-barrel, Square Bore, Aluminum, Black Finish, Chevy, 4.8-6.0L, Each

Part Number: HLY-300-256BK

5.0 out of 5 stars ( 1 )

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Valve Covers, Aluminum LS, Centerbolt, Tall, Chevrolet Logo, Cast Aluminum, Natural Finish, Baffled, Chevy, LS, 5.7L, 6.0L, 6.2L, 7.0L, Pair

Part Number: HLY-241-400

5.0 out of 5 stars ( 2 )

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Valve Covers, Sniper EFI, Fabricated, Aluminum, 2.25 in. Tall, Center Bolt Mount, Black Gloss, No Breather Hole, Hardware, Chevy, LS, 4.8-7.0L, Pair

Part Number: SNE-890014B

1.0 out of 5 stars ( 2 )

Estimated Ship Date: Jan 23, 2026 if ordered today

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Intake Manifolds, Sniper EFI, Fabricated, Multi-Port, 92mm Throttle Body, 1,800-6,400 RPM, Aluminum, Silver, Cadillac, Chevy, Pontiac, Each

Part Number: SNE-820101-1

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Estimated Ship Date: Jan 20, 2026 if ordered today

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Fuel Injection Systems, Terminator X, Stealth 4150, 58X LS EFI, Four Injector, Throttle Body, Speed Density, Aluminum, Gold, Chevy, 4.8-7.0L, Kit

Part Number: HLY-550-1062

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Intake Manifolds, LS Split Design Carbureted, Single Plane, Aluminum, Natural, 4500 Dominator, Chevrolet, LS1, LS2, LS6, Each

Part Number: HLY-300-295

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Fuel Rail Fasteners, Lo-Ram Manifold, LS Series, Aluminum Brackets, Black, Kit

Part Number: HLY-534-262

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Engine Management Systems, Terminator X MAX, 8-EV6 Injectors, 8-Coils, Analog Input, USB Cable, Chevy, LS, 5,7L, 1x Cam, 24x Crank, Kit

Part Number: HLY-550-932T

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Estimated Ship Date: Jan 19, 2026 if ordered today

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Alternators, High-amp, DR44G Style, Cast Aluminum, Natural Finish, Serpentine Pulley, 105 amps, 12V, Internal Regulator, Chevy, 4.8-7.0L, Each

Part Number: HLY-197-300

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Pulley Sets, Serpentine, LS Engine Swap Accessory Drive System, Sanden 7 A/C Only, Chevy, V8, Kit

Part Number: HLY-20-142

4.83 out of 5 stars ( 6 )

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Valve Covers, Sniper EFI, Fabricated, Aluminum, 2.25 in. Tall, Center Bolt Mount, Silver Gloss, No Breather Hole, Hardware, Chevy, LS, 4.8-7.0L, Pair

Part Number: SNE-890014

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Ignition Coil Brackets, Holley EFI, Offset Coil Bracket, Steel, Black Finish, for Holley Valve Covers, High Mount Alternator, Hardware Included, Each

Part Number: HLY-561-132

3.67 out of 5 stars ( 3 )

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Air Conditioner Brackets, Passenger Side, Aluminum, Black, Sanden 508, Chevrolet, Small Block LS, Each

Part Number: HLY-20-134BK

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Valve Covers, Tall -plus 0.54 in. Inside, Centerbolt, Chevrolet Logo, Cast Aluminum, Red Gloss Finish, Baffled, w/Grommets, Hardware, Chevy, LS, Pair

Part Number: HLY-241-404

4.0 out of 5 stars ( 1 )

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Accessory Drive Systems, Mid-Mount, Natural, Serpentine, 6-groove, GM Type 2, Sanden SD-7, Chevy, LSA/LS, Kit

Part Number: HLY-20-163

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 19, 2026 if ordered today

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Fuel Injection Systems, Terminator X Max, Stealth 4150, 24X LS EFI, Four Injector, Throttle Body, Aluminum, Gold, Trans Control, Chevy, 4.8-7.0L, Kit

Part Number: HLY-550-1030

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Estimated Ship Date: Jan 15, 2026 if ordered today

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