CHEVROLET Fuel Injection System Wiring Harnesses

Wiring Harness, Fuel Injection, for Engine Swaps, Multi-Port, Mass Airflow, with 10 Circuit Fuse Block/GM Colors, Chevy, LS 4.8, 5.3, 6.0L, Each

Part Number: PRF-60217

4.69 out of 5 stars ( 16 )

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Wiring Harnesses, Holley EFI, Replacement, LS Style, 58X/4X Main Harness, Speed Density, for HP, Dominator, EFI Systems Only, Chevy, 6.0-7.0L, Each

Part Number: HLY-558-103

5.0 out of 5 stars ( 1 )

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Wiring Harness, Fuel Injection, Multi-Port, Mass Airflow, Chevy, 4.8/5.3/6.0L, Kit

Part Number: PRF-60221

3.93 out of 5 stars ( 14 )

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Wiring Harnesses, Holley EFI, Replacement, LS1/6, 24X/1X Main Harness, Mass Airflow Metered, for HP, Dominator, EFI Systems Only, Chevy, 5.7L, Each

Part Number: HLY-558-102

5.0 out of 5 stars ( 4 )

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Wiring Harness, Fuel Injection, GM, MFI, Front Mount Fuse Block, Spade Fuse, 4L60E Trans, Universal, Kit

Part Number: PRF-60502

4.33 out of 5 stars ( 9 )

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Wiring Harness, Fuel Injection, GM, SFI, LS1, Engine Swap, Front Mount Fuse Block, Standard Length, Universal

Part Number: PRF-60508

4.8 out of 5 stars ( 5 )

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Wiring Harness, Fuel Injection, GM, TPI, Engine Swap, Universal, Kit

Part Number: PRF-60102

4.67 out of 5 stars ( 6 )

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Engine Wiring Harness, Engine Swap, Front Fuse Block, Standard Length, Chevy, 454, Kit

Part Number: PRF-60211

4.33 out of 5 stars ( 3 )

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Wiring Harness, Fuel Injection, GM, SFI, LT1/LT4 Engine Swap, Extra-Long Harness, Universal, Kit

Part Number: PRF-60505

5.0 out of 5 stars ( 2 )

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Wiring Harness, Fuel Injection, Multi-Port, Mass Airflow, Chevy, 4.3L, V6, Each

Part Number: PRF-60214

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Wiring Harness, Gen III Vortec, Chevy, 4.8/5.3/6.0L, Each

Part Number: PRF-60218

5.0 out of 5 stars ( 1 )

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Wiring Harness, Fuel Injection, GM, TPI, Engine Swap, Universal, Kit

Part Number: PRF-60103

4.0 out of 5 stars ( 1 )

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Wiring Harness, Multi-port Injection, Mass Airflow Meter, LS3 w/4L65E Trans Only, Throttle by Wire, Chevy, Kit

Part Number: PRF-60524

3.0 out of 5 stars ( 1 )

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Wiring Harnesses, Holley EFI, Main Harness, 24X LS TBI, for Terminator, Terminator Stealth, Throttle Body Systems, Chevy, Each

Part Number: HLY-558-111

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Estimated Ship Date: Oct 6, 2025 if ordered today

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Wiring Harnesses, Holley EFI, Main Harness, 58X LS TBI, for Terminator, Terminator Stealth, Throttle Body Systems, Chevy, Each

Part Number: HLY-558-112

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Wiring Harness, Fuel Injection, Standard Length, Throttle By Wire, Chevy, Pontiac, LS1, 5.7L, Kit

Part Number: PRF-60522

4.67 out of 5 stars ( 3 )

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Engine Wiring Harness, Engine Swap, Front Fuse Block, Extra-Long Length, Chevy, 5.7L LS1, Kit

Part Number: PRF-60509

4.83 out of 5 stars ( 6 )

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Engine Wiring Harness, Engine Swap, Front Fuse Block, Standard Length, Chevy, LS2, Kit

Part Number: PRF-60520

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Wiring Harness, Fuel Injection, GM, TPI, Front Mount Fuse Block, Spade Fuse, Extra-Long Harness, Universal, Kit

Part Number: PRF-60203

5.0 out of 5 stars ( 1 )

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Wiring Harness, EFI, Speed Density, GM Ram Jet, Kit

Part Number: RFW-RJ42

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Wiring Harness, Pro Series, 2004 GTO LS1, T56 Manual Transmission, 3-pin MAFS, LS2 O2 Sensors, EV1 Injectors, Each

Part Number: WRS-WPLS1UGT56

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EFI Wiring Harness, Telorvek GM GM Ram Jet, Chevy, 5.7L, Kit

Part Number: RFW-RJ22

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Estimated Ship Date: Oct 24, 2025 if ordered today

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