2003 Holley Engines & Components - In Stock Filter Options - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

Holley LS Valve Cover Adapter Plates 241-298

Spacer and Adapters, LS Valve Cover, Adapter, Perimeter Bolt, Cast Aluminum, 1.385 in. Thick, Natural, Chevy, LS, 4.8-7.0L, Kit

Part Number: HLY-241-298

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Holley Mid LSA/LS Power Steering Brackets 20-165

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

Not Yet Reviewed

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Holley LS Valley Covers 241-369

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

Not Yet Reviewed

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Holley Aluminum LS Valve Covers 241-111

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

Part Number: HLY-241-111

4.55 out of 5 stars ( 11 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Holley LS Valley Covers 241-367

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 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Holley LS Engine Alternator and Power Steering Brackets 20-135BK

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

Part Number: HLY-20-135BK

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Holley LS Engine Accessory Drive Kits 20-131BK

Accessory Drive Bracket Kits, for R4 A/C Compressor, Aluminum, Black, Chevy, LS, Kit

Part Number: HLY-20-131BK

Not Yet Reviewed

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Holley 2-Piece Ford Style Valve Covers 241-185

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

Not Yet Reviewed

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Holley Power Steering Pulleys for 1997-2004 CORVETTE - 97-154

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

3.33 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Holley LS Engine Accessory Drive Kits 21-2

Accessory Drive Bracket Spacer Kits, Aluminum, Natural Finish, Middle Alignment, Chevy, Small Block LS, Each

Part Number: HLY-21-2

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Holley Aluminum LS Valve Covers 241-402

Valve Covers, Aluminum LS, Centerbolt, Tall, Chevrolet Logo, Cast Aluminum, Black Satin, Baffled, Chevy, LS, 4.3L, 5.3L, 5.7L, 6.0L, 6.2L, 7.0L, Pair

Part Number: HLY-241-402

Not Yet Reviewed

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Holley Alternator Brackets 20-166

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

Part Number: HLY-20-166

Not Yet Reviewed

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Holley LS Engine Accessory Drive Kits 21-3BK

Accessory Drive Bracket Spacer Kits, Aluminum, Black Finish, Long Alignment, Chevy, Small Block LS, Each

Part Number: HLY-21-3BK

Not Yet Reviewed

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Holley Harmonic Balancers 97-190

Harmonic Balancers, LS Engine, Internal Balance, Steel, Black, Degree Marked, 7.5 in. Diameter, for Mid-Mount Accessory Drive Only, GM, 5.7-6.2L, Each

Part Number: HLY-97-190

Not Yet Reviewed

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Holley Mid-Mount Complete Accessory Systems 20-163BK

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

...Loading

Estimated Ship Date: Tomorrow

Holley Aluminum LS Valve Covers 241-88

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

4.38 out of 5 stars ( 8 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Holley LS Engine Swap Accessory Drive Systems 20-141

Pulley Sets, Serpentine, LS Engine Swap Accessory Drive System, Sanden 508 A/C Only, Chevy, V8, Kit

Part Number: HLY-20-141

4.5 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Holley LS Valley Covers 241-262

Lifter Valley Plates, LS Valley, Billet Aluminum, Trussed, Black Anodized, 10-bolt Pattern, Chevy, LS, 4.8L, 5.3L, 5.7L, 6.0L, Each

Part Number: HLY-241-262

Not Yet Reviewed

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Holley Aluminum LS Valve Covers 241-164

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

2.5 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Holley LS Engine Accessory Drive Kits 20-132

Accessory Drive Bracket Kits, for Sanden SD508 or SD7 Compressor, Aluminum, Natural, Chevy, Small Block LS, Kit

Part Number: HLY-20-132

4.11 out of 5 stars ( 9 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Holley LS Engine Oil Fill Caps 241-225

Oil Fill Caps, LS Engine, Twist-in, Octagon Shape, Natural, Aluminum Cap, O-ring Included, for Holley LS Valve Covers, Each

Part Number: HLY-241-225

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Holley LS Engine Swap Accessory Drive Systems 20-156

Accessory Drive Systems, LS Engine Swap, Serpentine Style, Alternator, Power Steering, Pullies, 6-groove, Natural Finish, Chevy, LS, 4.8-7.0L, Kit

Part Number: HLY-20-156

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Holley Replacement Harmonic Balancer Bolts 97-321

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

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Holley LS Valve Cover Adapter Plates 241-297

Spacer and Adapters, LS Valve Cover, Adapter, Perimeter Bolt, Cast Aluminum, 1.385 in. Thick, Black, Chevy, LS, 4.8-7.0L, Kit

Part Number: HLY-241-297

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Holley LS Engine Swap Accessory Drive Systems 20-136

Pulley Kits, LS Swap, Serpentine, Alternator, Power Steering, A/C, GM Type 2, 130 Amp Alternator, Natural, Kit

Part Number: HLY-20-136

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 20, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 20, 2026 if ordered today