Holley Engines & Components

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

Part Number: HLY-241-180

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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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Accessory Drive Systems, LS Engine Swap, Serpentine, Black Air Conditioning Pulley, Compressor, Tensioner, Chevrolet, Small Block LS, Kit

Part Number: HLY-20-140

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Valve Covers, Vintage Series. Perimeter Bolt, Tall, Finned, Cast Aluminum, Polished Finish, Chevy, 4.3-6.6L, Pair

Part Number: HLY-241-107

5.0 out of 5 stars ( 2 )

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Harmonic Balancers, LT1 Engine, Internal Balance, Steel, Black, Degree Marked, 7.5 in. Diameter, with Mid-Mount Accessory Drive Only, GM, 6.2L, Each

Part Number: HLY-97-192

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Breathers, Valve Cover, Push-in, 1.250 in. OD Tube, Round, Steel, Chrome Plated, Universal, Each

Part Number: HLY-241-213

2.5 out of 5 stars ( 2 )

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Pulley Sets, Serpentine, LS Engine Swap Accessory Drive System, Without A/C, Chevy, V8, Kit

Part Number: HLY-20-143

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Valve Cover Fasteners, Holley EFI, Tall LS Valve Cover Bolts, Polished, Aluminum, Hex Head, 6mm x 1.0 Thread, Hardware Included, Chevy, 4.8-7.0L, Each

Part Number: HLY-561-133

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Oil Pan Baffles, Replacement, LS Swap, Off-Road Oil Pan, Aluminum, Satin Finish, for Holley 302-4, 4BK, Chevy, 4.8L, 5.3L, 5.7L, 6.0L, 6.2L, 7.0L, Kit

Part Number: HLY-302-33

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Accessory Drive Systems, Gen III, Hemi, Mid-Mount System, Natural Finish, Serpentine, A/C, P/S, Water Pump, Hardware, Chrysler, Dodge, 5.7L, 6.2L, Kit

Part Number: HLY-20-290

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Oct 27, 2025 if ordered today

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Valve Covers, Chrome, Perimeter Bolt, Holley Logo, Steel, Plated, Baffled, Chevy, Gen I, 283ci, 302ci, 305ci, 307ci, 327ci, 350ci, 400ci, Pair

Part Number: HLY-241-80

1.0 out of 5 stars ( 1 )

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Alternator Brackets, Relocation Bracket, Low Inward, Right Side, Steel, Black Powdercoat, for 197-302, 197-303 Holley Alternators, Gen III, Hemi, Each

Part Number: HLY-97-368

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Pulley Sets, Serpentine, LS Engine Swap Accessory Drive System, Without A/C, Black Powdercoated, Chevy, V8, Kit

Part Number: HLY-20-143BK

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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

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Idler Pulleys, Holley, Replacement, Serpentine, Smooth, Black, Composite, 2.75 in. Diameter, for LT4 Accessory Drive Systems, GM, 6.2L, Each

Part Number: HLY-97-242

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Accessory Drive Systems, LS Engine Swap, Serpentine, Black Air Conditioning Pulley, Compressor, Tensioner, Chevrolet, Small Block LS, Kit

Part Number: HLY-20-140BK

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Alternator and Power Steering Brackets, Power Steering Bracket with Short Spacer, Cast Aluminum, Black Finish, GM LT5 System, Dry Sump Only, Each

Part Number: HLY-97-267BK

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Accessory Drive Systems, LS Engine Swap, Serpentine, Black Air Conditioning Pulley, Sanden SD-7 Compressor, Tensioner, Chevrolet, Small Block LS, Kit

Part Number: HLY-20-160BK

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

Part Number: HLY-20-142BK

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Accessory Belt Tensioner Dress-Up Covers, Holley, Aluminum, Polished, for Mid Mount Accessory Drive, includes Hardware, Each

Part Number: HLY-97-157

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Accessory Drive Systems, LT Mid-Mount, Serpentine, Alternator, Power Steering, AC, Water Pump, Pulleys, 6-groove, Polished, Chevy, 5.3L, 6.2L, Kit

Part Number: HLY-20-200P

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Accessory Drive Systems, LS Mid-Mount, Serpentine, Alternator, A/C, Water Pump, Power Steering, SFI Damper, Polished Finish, Chevy, 4.8-6.2, Kit

Part Number: HLY-20-180P

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Air Conditioner Brackets, Replacement, Bracket, Sanden SD7 Compressor, Aluminum, Natural, for High-Mount Accessory Drive, Ford, 7.3L Godzilla, Each

Part Number: HLY-97-403

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Accessory Drive Systems, Mid-mount, Serpentine, Alternator, Power Steering, AC, Water Pump, Black, Pulleys, 6-groove, Chevy, 6.2L, Gen V, LT5, Kit

Part Number: HLY-20-230BK

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Accessory Drive Systems, Mid-Mount, Gen III, Hemi, VVT, Serpentine, 6-groove, Alternator, Power Steering, AC, Water Pump, Belts, Black Finish, Kit

Part Number: HLY-20-293BK

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