CHEVROLET Chevy small block Gen III/IV (LS-based engines) Electrical Wiring

Wiring Harnesses, Holley EFI, LS2/3/7, 58X/4X, Main Harness, Plug-and-Play, Extended Length, for Dominator/HP EFI Systems, Chevy, 6.0-7.0L, Each

Part Number: HLY-558-134

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Estimated Ship Date: Tuesday 9/2/2025

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Wiring Harnesses, Holley EFI, LS1/6, 24X/1X, Main Harness, Plug-and-Play, Extended Length, for Dominator/HP EFI Systems, Chevy, 4.8-6.0L, Each

Part Number: HLY-558-133

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tuesday 9/2/2025

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Weatherproof Connectors, Holley EFI, GM LSx Engine, Main Harness Connectors, Connectors, Pins, Seals, Cavity Plugs included, Kit

Part Number: HLY-570-103

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tuesday 9/2/2025

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Transmission Harnesses, Holley EFI, Control Harness, F-Body, T-56 Tranny, Plug-and-Play, VSS, Reverse Lockout, for Terminator X, Max X ECUs, Each

Part Number: HLY-558-481

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Estimated Ship Date: Tuesday 9/2/2025

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Weatherproof Connectors, Holley EFI, Replacement, Hall Effect Sensor Connector, Metripack, 3-pin Female, Black, Pins, Seals, TPA, for 554-118, Each

Part Number: HLY-570-223

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tuesday 9/2/2025

Weatherproof Connectors, Holley EFI, LS 58X Crank/CPS Sensor Connectors, Metripack, 3-pin, Female, Black, with Pins, Seals, TPA, 10-piece, Chevy, Set

Part Number: HLY-570-318

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Estimated Ship Date: Sep 18, 2025 if ordered today

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Wiring Harness, Two-Pin Alternator, Edelbrock Pro-Flo 4 Plus, Chevy, LS, Each

Part Number: EDL-36165

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Estimated Ship Date: Sep 26, 2025 if ordered today

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Weatherproof Connectors, Holley EFI, LS 24X Crank, MAP Sensor Connectors, Metripack, 3-pin, Female, Gray, with Pins, Seals, TPA, 10-piece, Chevy, Set

Part Number: HLY-570-317

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Estimated Ship Date: Sep 17, 2025 if ordered today

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Wiring Harness, Ignition and Engine Position, Edelbrock Pro-Flo 4 Plus, with 58-Tooth Reluctor Wheel, Chevy, LS, Each

Part Number: EDL-36122

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Sep 26, 2025 if ordered today

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Wiring Harness, Dual Drive-By-Wire, Edelbrock Pro-Flo 4 Plus, Chevy, LS, Each

Part Number: EDL-36142

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Estimated Ship Date: Sep 26, 2025 if ordered today

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Wiring Harness, Knock Sensor, Edelbrock Pro-Flo 4 Plus, Chevy, LS1, Each

Part Number: EDL-36145

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Estimated Ship Date: Sep 26, 2025 if ordered today

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