Engine Wiring Harnesses for 1967–1972 GM Trucks
Get your engine bay wired cleanly and correctly with engine wiring harnesses built for 67-72 GM trucks. Whether you're running a stock small block, a big block, or doing an LS swap, we have the right harness to make your C10 or K10 build clean and reliable.
- Engine wiring harnesses for 67-72 GM trucks
- Compatible with SBC, BBC, and LS engine swaps
- Correct connector configurations for C10 and K10 applications
- Trusted brands with proven fitment for classic GM builds
A clean engine bay starts with a clean harness — get the right engine wiring for your classic GM truck.
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Main Harness - Universal MPFI
The Main Harness - Universal MPFI is a versatile wiring...
$573.95
Vendor
Drive By Wire Harness GM
The Drive By Wire Harness GM is specifically designed for...
$261.95
Vendor
Bench-Top EFI Test Harness
The Bench-Top EFI Test Harness is a versatile wiring harness...
$251.95
Vendor
Wire Harness LS to SS Map Adapter
The Wire Harness LS to SS Map Adapter is designed...
$26.95
Vendor
Map Sensor Adapter LS1 & LS2 to LS3
The Map Sensor Adapter allows for seamless integration of LS1...
$44.95
Vendor
Dominator EFI Kit w/COP Universal
The Dominator EFI Kit with Coil On Plug (COP) is...
$3,501.95
Vendor
Terminator X-MAX MPFI w Trans Control
The Holley Terminator X-MAX MPFI with Transmission Control is an...
$1,951.95
Vendor
Terminator X-Max ECU
The Holley Terminator X-Max ECU is a state-of-the-art engine control...
$1,301.95
Vendor
Main Wire Harness Hemi Late W/ TPS & IAC
The Holley Main Wire Harness for Late Hemi engines comes...
$851.95
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