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Holley

CHEVROLET Chevy small block Gen III/IV (LS-based engines) Holley Parts and Accessories

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Holley Mid-Mount Complete Accessory Systems 20-185BK

Holley Mid-Mount Complete Accessory Systems 20-185BK

Holley Mid-Mount Complete Accessory Systems 20-185BK

Accessory Drive Systems, LS Mid-mount, Serpentine, Alternator, Water Pump, Clockwise, Power Steering, AC, SD-7, Black Finish, Chevy, 4.8-7.0L, Kit

Part Number: HLY-20-185BK

4.69 out of 5 stars ( 26 )

Estimated Ship Date: Tomorrow

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Holley Mid-Mount Complete Accessory Systems 20-185

Holley Mid-Mount Complete Accessory Systems 20-185

Holley Mid-Mount Complete Accessory Systems 20-185

Accessory Drive Systems, LS Mid-mount, Serpentine, Alternator, Water Pump, Clockwise, Power Steering, AC, SD-7, Natural Finish, Chevy, 4.8-7.0L, Kit

Part Number: HLY-20-185

4.71 out of 5 stars ( 28 )

Estimated Ship Date: Tomorrow

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Holley Terminator X MAX Engine Management Systems 550-918-6

Holley Terminator X MAX Engine Management Systems 550-918-6

Holley Terminator X MAX Engine Management Systems 550-918-6

Engine Management Systems, Terminator X MAX, 8-Injectors, 8-Coil, Sensors, Trans and Tuner Controller, Chevy, LS, 4.8-6.2L, 4x Cam, 58x Crank, Kit

Part Number: HLY-550-918-6

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Holley Mid-Mount Complete Accessory Systems 20-180BK

Holley Mid-Mount Complete Accessory Systems 20-180BK

Holley Mid-Mount Complete Accessory Systems 20-180BK

Accessory Drive Systems, LS Mid-Mount, Serpentine Style, Alternator, Water Pump, Power Steering, A/C, Hardware, Black Finish, Chevy, 4.8-7.0L, Kit

Part Number: HLY-20-180BK

4.0 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

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Holley Dominator EFI Vehicle Management Systems 550-650

Holley Dominator EFI Vehicle Management Systems 550-650

Holley Dominator EFI Vehicle Management Systems 550-650

Engine Management Systems, Dominator EFI, Connects 24-EV1 Injectors, 12-Coils, Analog/Digital inputs, 1x Cam Sensor, Chevy, 5.7L, 6.0L,24x Crank, Kit

Part Number: HLY-550-650

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Holley Mid-Mount Complete Accessory Systems 20-186BK

Holley Mid-Mount Complete Accessory Systems 20-186BK

Holley Mid-Mount Complete Accessory Systems 20-186BK

Accessory Drive Systems, LS Mid-mount, Serpentine, Alternator, Water Pump, Counterclockwise, Power Steering, GM 2, Black Finish, Chevy, 4.8-7.0L, Kit

Part Number: HLY-20-186BK

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Holley Mid-Mount Complete Accessory Systems 20-163BK

Holley Mid-Mount Complete Accessory Systems 20-163BK

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

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Holley Terminator X MAX Engine Management Systems 550-917-6

Holley Terminator X MAX Engine Management Systems 550-917-6

Holley Terminator X MAX Engine Management Systems 550-917-6

Engine Management Systems, Terminator X MAX, 8-Injectors, 8-Coil, Sensors, Trans and Tuner Controller, Chevy, LS, 4.8-6.0L, 1x Cam, 24x Crank, Kit

Part Number: HLY-550-917-6

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Holley Terminator X Stealth 4150 58X LS EFI Fuel Injection Systems 550-1062

Holley Terminator X Stealth 4150 58X LS EFI Fuel Injection Systems 550-1062

Holley Terminator X Stealth 4150 58X LS EFI Fuel Injection Systems 550-1062

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

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Holley HP EFI ECU and Harness Kits 550-602

Holley HP EFI ECU and Harness Kits 550-602

Holley HP EFI ECU and Harness Kits 550-602

Engine Management Systems, HP EFI, ECU and Harness, Up to 16-Injectors, 8-Coils, Four Digital Inputs, Wideband, CANBUS, Chevy, LS, 5.7L, Kit

Part Number: HLY-550-602

4.83 out of 5 stars ( 6 )

Estimated Ship Date: Dec 11, 2025 if ordered today

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Estimated Ship Date: Dec 11, 2025 if ordered today

Holley Terminator X MAX Stealth 4150 24X LS EFI Fuel Injection Systems 550-1030

Holley Terminator X MAX Stealth 4150 24X LS EFI Fuel Injection Systems 550-1030

Holley Terminator X MAX Stealth 4150 24X LS EFI Fuel Injection Systems 550-1030

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

Not Yet Reviewed

Estimated Ship Date: Dec 11, 2025 if ordered today

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Estimated Ship Date: Dec 11, 2025 if ordered today

Holley Mid-Mount Complete Accessory Systems 20-185P

Holley Mid-Mount Complete Accessory Systems 20-185P

Holley Mid-Mount Complete Accessory Systems 20-185P

Accessory Drive Systems, LS Mid-mount, Serpentine, Alternator, Water Pump, Clockwise, Power Steering, AC, SD-7, Polished Finish, Chevy, 4.8-7.0L, Kit

Part Number: HLY-20-185P

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Holley Terminator X MAX Stealth 4150 24X LS EFI Fuel Injection Systems 550-1029

Holley Terminator X MAX Stealth 4150 24X LS EFI Fuel Injection Systems 550-1029

Holley Terminator X MAX Stealth 4150 24X LS EFI Fuel Injection Systems 550-1029

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

Part Number: HLY-550-1029

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Holley Terminator X MAX Stealth 4150 58X LS EFI Fuel Injection Systems 550-1065

Holley Terminator X MAX Stealth 4150 58X LS EFI Fuel Injection Systems 550-1065

Holley Terminator X MAX Stealth 4150 58X LS EFI Fuel Injection Systems 550-1065

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

Part Number: HLY-550-1065

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Holley Terminator X Stealth 4150 24X LS EFI Fuel Injection Systems 550-1020

Holley Terminator X Stealth 4150 24X LS EFI Fuel Injection Systems 550-1020

Holley Terminator X Stealth 4150 24X LS EFI Fuel Injection Systems 550-1020

Fuel Injection Systems, Terminator X, Stealth 4150, 24X LS EFI, Four Injector, Throttle Body, Speed Density, Aluminum, Shiny, Chevy, 4.8-7.0L, Kit

Part Number: HLY-550-1020

Not Yet Reviewed

Estimated Ship Date: Dec 11, 2025 if ordered today

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Estimated Ship Date: Dec 11, 2025 if ordered today

Holley Terminator X Stealth 4150 58X LS EFI Fuel Injection Systems 550-1061

Holley Terminator X Stealth 4150 58X LS EFI Fuel Injection Systems 550-1061

Holley Terminator X Stealth 4150 58X LS EFI Fuel Injection Systems 550-1061

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

Part Number: HLY-550-1061

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Holley Dominator EFI Vehicle Management Systems 550-656

Holley Dominator EFI Vehicle Management Systems 550-656

Holley Dominator EFI Vehicle Management Systems 550-656

Engine Management Systems, Dominator EFI, Connects 24-EV1 Injectors, 12-Coils, Analog/Digital inputs, 1x Cam Sensor, Chevy, 5.7L, 6.0L, 24x Crank, Kit

Part Number: HLY-550-656

Not Yet Reviewed

Estimated Ship Date: Dec 9, 2025 if ordered today

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Estimated Ship Date: Dec 9, 2025 if ordered today

Holley Terminator X Stealth 4150 24X LS EFI Fuel Injection Systems 550-1021

Holley Terminator X Stealth 4150 24X LS EFI Fuel Injection Systems 550-1021

Holley Terminator X Stealth 4150 24X LS EFI Fuel Injection Systems 550-1021

Fuel Injection Systems, Terminator X, Stealth 4150, 24X LS EFI, Four Injector, Throttle Body, Speed Density, Aluminum, Black, Chevy, 4.8-7.0L, Kit

Part Number: HLY-550-1021

Not Yet Reviewed

Estimated Ship Date: Dec 10, 2025 if ordered today

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Estimated Ship Date: Dec 10, 2025 if ordered today

Holley Mid-Mount Complete Accessory Systems 20-163

Holley Mid-Mount Complete Accessory Systems 20-163

Holley Mid-Mount Complete Accessory Systems 20-163

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: Tomorrow

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Estimated Ship Date: Tomorrow

Holley Terminator LS Plug-and-Play Multi-Port Systems 550-614

Holley Terminator LS Plug-and-Play Multi-Port Systems 550-614

Holley Terminator LS Plug-and-Play Multi-Port Systems 550-614

Engine Management Systems, Terminator LS, Plug-andPlay, 8-Injectors, 8-Coils, Analog Inputs, with Controller, Chevy, Truck, 4.8-6.0L, 24x Crank, Kit

Part Number: HLY-550-614

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 11, 2025 if ordered today

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Estimated Ship Date: Dec 11, 2025 if ordered today

Holley Terminator X MAX Stealth 4150 24X LS EFI Fuel Injection Systems 550-1028

Holley Terminator X MAX Stealth 4150 24X LS EFI Fuel Injection Systems 550-1028

Holley Terminator X MAX Stealth 4150 24X LS EFI Fuel Injection Systems 550-1028

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

Part Number: HLY-550-1028

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Holley HP EFI ECU and Harness Kits 550-603

Holley HP EFI ECU and Harness Kits 550-603

Holley HP EFI ECU and Harness Kits 550-603

Engine Management Systems, HP EFI, ECU and Harness, Up to 16-Injectors, 8-Coils, Four Digital Inputs, GM, LS2, LS7, 58x Crank Sensor, Kit

Part Number: HLY-550-603

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Holley LS Engine Swap Accessory Drive Systems 20-137BK

Holley LS Engine Swap Accessory Drive Systems 20-137BK

Holley LS Engine Swap Accessory Drive Systems 20-137BK

Accessory Drive Systems, LS Engine Swap, Serpentine, Black, Air Conditioning Pulley, Compressor, Tensioner, Chevy, LS, 4.8-7.0L, Kit

Part Number: HLY-20-137BK

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Holley Dominator EFI Vehicle Management Systems 550-657

Holley Dominator EFI Vehicle Management Systems 550-657

Holley Dominator EFI Vehicle Management Systems 550-657

Engine Management Systems, Dominator EFI, 24-EV1 Injectors, 12-Coils, Analog/Digital, Drive-by-wire, 1x Cam Sensor, Chevy, 5.7L, 6.0L, 24x Crank, Kit

Part Number: HLY-550-657

Not Yet Reviewed

Estimated Ship Date: Dec 11, 2025 if ordered today

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Estimated Ship Date: Dec 11, 2025 if ordered today

Holley Mid-Mount Complete Accessory Systems 20-187BK

Holley Mid-Mount Complete Accessory Systems 20-187BK

Holley Mid-Mount Complete Accessory Systems 20-187BK

Accessory Drive Systems, LS Mid-Mount, Serpentine, Alternator, Water Pump, Counterclockwise, Pulleys, 6-groove, Black Finish, Chevy, 4.8-7.0L, Kit

Part Number: HLY-20-187BK

Not Yet Reviewed

Estimated Ship Date: Dec 10, 2025 if ordered today

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Estimated Ship Date: Dec 10, 2025 if ordered today

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