Availability
2003 Holley Engines & Components
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
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
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
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Lifter Valley Plates, LS Valley, Billet Aluminum, Trussed, Natural Finish, 10-bolt Pattern, Chevy, LS, 4.8L, 5.3L, 5.7L, 6.0L, Each
Part Number: HLY-241-260
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Accessory Drive Bracket Kits, for R4 Compressor, Aluminum, Natural, Chevy, Small Block LS, Kit
Part Number: HLY-20-131
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Pulley Sets, Serpentine, LS Engine Swap Accessory Drive System, Sanden 7B10 A/C Only, Black Powdercoated, Chevy, GMC, V8, Kit
Part Number: HLY-20-138BK
Estimated Ship Date: Mar 4, 2026 if ordered today
Estimated Ship Date: Mar 4, 2026 if ordered today
Oil Pans, Gen III Hemi, RetroFit, Wet Sump, Rear, 6.2 Quart, Dipstick Compatible, Cast Aluminum, Black, Chrysler, Dodge, GMC, Plymouth, 376ci,
Part Number: HLY-302-63BK
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Valve Covers, Aluminum LS, Centerbolt, Tall, Plain, Cast Aluminum, Natural Finish, Chevy, LS, 4.8-7.0L, Pair
Part Number: HLY-241-110
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
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
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Accessory Drive Bracket Spacer Kits, Aluminum, Natural Finish, Middle Alignment, Chevy, Small Block LS, Each
Part Number: HLY-21-2
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Accessory Drive Systems, LS Mid-mount, Serpentine, Alternator, Water Pump, Counterclockwise, Power Steering, GM 2, Polished, Chevy, 4.8-7.0L, Kit
Part Number: HLY-20-186P
Not Yet Reviewed
Estimated Ship Date: Mar 5, 2026 if ordered today
Estimated Ship Date: Mar 5, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
March Performance Chevy LS Series Serpentine Kits 20085-08
Not Yet Reviewed
Estimated Ship Date: Tomorrow
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
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Valve Covers, Aluminum LS, Centerbolt, Tall, Plain, Cast Aluminum, Red Powdercoat, Glossy, Chevy, LS, 4.8-7.0L, Pair
Part Number: HLY-241-113
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Pulley Sets, Serpentine, LS Engine Swap Accessory Drive System, Sanden 7 A/C Only, Black Powdercoated, Chevy, V8, Kit
Part Number: HLY-20-142BK
Not Yet Reviewed
Estimated Ship Date: Mar 4, 2026 if ordered today
Estimated Ship Date: Mar 4, 2026 if ordered today
Power Steering Pulleys, Holley, Replacement, 6-groove, LS Serpentine, Press-fit, Steel, Black, 5.75 in. OD, 0.66 in. Bore, for GM Type 2 Pump, Each
Part Number: HLY-97-154
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
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
Crankshaft Pulleys, Holley, Replacement, LS Serpentine, 3-bolt, 6-groove, Steel, Black, for Holley Mid-Mount Accessory Drive, Chevy, 5.7-6.2L, Each
Part Number: HLY-97-159
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Accessory Drive Systems, Mid-Mount, Black, Serpentine, 6-groove, GM Type 2, Sanden SD-7, Chevy, LSA, LS, Kit
Part Number: HLY-20-163BK
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Valve Covers, Aluminum LS, Centerbolt, Tall, Cast Aluminum, Orange Powdercoated, Gloss Finish, Chevy, 5.7L, 6.0L, 6.2L, 7.0L,Pair
Part Number: HLY-241-164
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Accessory Drive Systems, LS Engine Swap, Serpentine, Black Air Conditioning Pulley, Sanden SD-7 Compressor, Tensioner, Chevrolet, Small Block LS, Kit
Part Number: HLY-20-160
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Spacer and Adapters, LS Valve Cover, Adapter, Perimeter Bolt, Cast Aluminum, 1.385 in. Thick, Polished, Chevy, LS, 4.8-7.0L, Kit
Part Number: HLY-241-296
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Harmonic Balancer Bolts, Replacement, Steel, Black E-Coat, 1/2 in.-20 Thread, 2.5 in. Long, 12-Point Head, Washer included, Chevy, 6.5-8.1L, Each
Part Number: HLY-97-321
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Valve Covers, Aluminum LS, Centerbolt, Plain Top, Cast Aluminum, Natural Finish, Baffled, Chevy, LS, 4.8L, 5.3L, 5.7L, 6.0L, 6.2L, 7.0L, Pair
Part Number: HLY-241-88
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Alternator Brackets, Low-Mount, Aluminum, Black, Chevy, Kit
Part Number: HLY-20-166BK
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster