Availability
2003 Holley Parts and Accessories
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
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Fuel Pumps, OEM Style, EFI, Electric, In-Tank, 450 lph, 60 psi, 12V, Sending Unit, 220-20 ohms, -8 AN Ports, Return Style, E85 Fuel, Dodge, Ram, Kit
Part Number: HLY-12-325
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Intake Manifolds, LS Modular, Lo-Ram EFI, Base Only, Multi-port, -8 AN, O-ring Female, Fuel Rails, Runners, Aluminum, Black, Chevy, 4.8-6.0L, Each
Part Number: HLY-300-600BK
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Valve Covers, Aluminum LS, Centerbolt, Tall, Holley Logo, Cast Aluminum, Black Powdercoated, Satin Finish, Chevy, 4.8-7.0L, Pair
Part Number: HLY-241-172
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Intake Manifolds, Fuel Injected, LS Single Plane Split-Design Race, Stock/OEM Deck, 2,500-7,000 RPM, Aluminum, Natural, Chevy, Small Block, Each
Part Number: HLY-300-255
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Alternators, Premium, OE Style, Cast Aluminum, Natural Finish, 150 amps, 12V, Internal Regulator, Serpentine Pulley, Chevy, 4.8-7.0L, Each
Part Number: HLY-197-302
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Timing Covers, Replacement, Natural Finish, for Mid-Mount Accessory Drive 20-290, 20-292, Gen III, Hemi, Non-VVT, Cast Aluminum, 5.7L, 6.1L, Each
Part Number: HLY-97-372
Not Yet Reviewed
Estimated Ship Date: Mar 4, 2026 if ordered today
Estimated Ship Date: Mar 4, 2026 if ordered today
Valve Covers, Aluminum LS, Center and Perimeter Bolt, Tall, Finned, Cast Aluminum, Orange Gloss, Two-Piece, Chevy, LS, 4.8-7.0L, Pair
Part Number: HLY-241-183
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Alternators, Premium, OE Style, Cast Aluminum, Polished Finish, 150 amps, 12V, Internal Regulator, Serpentine Pulley, Chevy, 4.8-7.0L, Each
Part Number: HLY-197-304
Not Yet Reviewed
Estimated Ship Date: Mar 4, 2026 if ordered today
Estimated Ship Date: Mar 4, 2026 if ordered today
Intake Manifolds, LS Split Design EFI, Single Plane, Aluminum, Natural, 4500 Dominator, Chevrolet, LS1, LS2, LS6, Kit
Part Number: HLY-300-294
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
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
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
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
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Valve Covers, LS Pontiac, Cast Aluminum, Perimeter Bolt, Plain, Cast Aluminum, Natural Finish, Two-Piece, Chevy, LS, 4.8-7.0L, Pair
Part Number: HLY-241-190
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Crank Triggers, Holley EFI, 12-1X LS, Hall Effect, 6.56 in. Diameter, Aluminum, Silver, Adjustable Bracket, 3-wire Pickup, Gen III, IV, SBC, Kit
Part Number: HLY-556-176
Not Yet Reviewed
Estimated Ship Date: Mar 4, 2026 if ordered today
Estimated Ship Date: Mar 4, 2026 if ordered today
Throttle Linkage, Sniper EFI, Dual Plenum Linkage, Aluminum, Black Anodized, 92mm Bore, Brackets, Cables, Hardware, Chevy, LS, 4.8-7.0L, Kit
Part Number: SNE-860028
Not Yet Reviewed
Estimated Ship Date: Mar 9, 2026 if ordered today
Estimated Ship Date: Mar 9, 2026 if ordered today
Valve Covers, Aluminum LS, Center and Perimeter Bolt, Tall, Finned, Cast Aluminum, Red Gloss, Two-Piece, Chevy, LS, 4.8-7.0L, Pair
Part Number: HLY-241-184
Estimated Ship Date: Mar 6, 2026 if ordered today
Estimated Ship Date: Mar 6, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Top Street Performance Cast Aluminum 2-Piece Valve Covers JM8082-2P
Estimated Ship Date: Tomorrow
Water Pumps, Mechanical, LS Cooling Manifold, Counterclockwise, Aluminum, Black Finish, Mid-Mount Race Drive, with A/C Delete, GM, 4.8-7.0L, Each
Part Number: HLY-97-224
Estimated Ship Date: Mar 4, 2026 if ordered today
Estimated Ship Date: Mar 4, 2026 if ordered today
Wiring Harnesses, Holley EFI, Main Harness, 24X LS TBI, for Terminator, Terminator Stealth, Throttle Body Systems, Chevy, Each
Part Number: HLY-558-111
Not Yet Reviewed
Estimated Ship Date: Mar 6, 2026 if ordered today
Estimated Ship Date: Mar 6, 2026 if ordered today
Timing Covers, Replacement, Cast Aluminum, Black Finish, for Mid-Mount Accessory Drive 20-291BK, 20-293BK, Gen III, Hemi, VVT, 5.7L, 6.4L, Each
Part Number: HLY-97-375
Not Yet Reviewed
Estimated Ship Date: Mar 4, 2026 if ordered today
Estimated Ship Date: Mar 4, 2026 if ordered today
Timing Covers, Replacement, Cast Aluminum, Black Finish, for Mid-Mount Accessory Drive 20-290BK, 20-292BK, Gen III, Hemi, Non-VVT, 5.7L, 6.1L, Each
Part Number: HLY-97-373
Not Yet Reviewed
Estimated Ship Date: Mar 4, 2026 if ordered today
Estimated Ship Date: Mar 4, 2026 if ordered today
Valve Covers, Aluminum LS, Centerbolt, Plain Top, Cast Aluminum, Polished, Baffled, Chevy, LS, 4.8L, 5.3L, 5.7L, 6.0L, 6.2L, 7.0L, Pair
Part Number: HLY-241-90
Estimated Ship Date: Mar 6, 2026 if ordered today
Estimated Ship Date: Mar 6, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Water Pump Housings, Holley, LS Cooling Manifold, Aluminum, Polished, Steam Tube Inlet, 1/8 in.-NPT, for Holley Mid-Mount Accessory Drive Only, Each
Part Number: HLY-97-165
Not Yet Reviewed
Estimated Ship Date: Mar 4, 2026 if ordered today
Estimated Ship Date: Mar 4, 2026 if ordered today
Timing Covers, Replacement, Cast Aluminum, Natural Finish, for Mid-Mount Accessory Drive 20-291, 20-293, Gen III, Hemi, VVT, 5.7L, 6.4L, Each
Part Number: HLY-97-374
Not Yet Reviewed
Estimated Ship Date: Mar 4, 2026 if ordered today
Estimated Ship Date: Mar 4, 2026 if ordered today
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