How to Swap an LS Engine Into Your 1967-1972 GM C10 Truck With A Holley Swap Kit
One of the most popular LS swap recipients today is the Chevy C10 pickup. The popular truck series was introduced in 1960 with a second generation running from ’67 - ’72 and a long lasting third round that carried from ’73 – ’87. Holley and their supporting brands have been studying and building C10s for years and offer a plenty of performance upgrade products as well as an inclusive list of LS swap components.
LS swaps are nothing new, but there’s a difference between reading about them in forums compared to finishing one right the first time. One thing to consider before starting any LS swap is to map out the parts you’re going to need to complete the installation. Buying mounts from company A, headers from company B, with a crossmember from company C can add up to an overall fitment issues as the parts weren’t designed to work together as a whole. It’s best to work with parts from one company all the way through.
Not only does Holley continue to roll out helpful new LS swap components, but they work together with a number of their sister companies to develop products that are engineered, tested and built to work together. This means you get parts that fit right and perform to expectation to help you achieve a professional drivetrain swap
We decided to put their list of C10 LS swap parts to the test by swapping a third gen driveline into a ’71 C10 Suburban. The ‘new’ driveline was liberated from a totaled 2003 Tahoe. We were able to start the 5.3L and even putt the wreck around the yard before deciding it would be right for our ’71. The engine had about 110,000 miles, sounded good and the trans shifted from what little we could tell and had healthy appearing trans fluid. The swap was a go.
For electronic control, the Terminator X Max was our go-to decision since it has trans controls built into the ECU. The system is easy to program with its handheld monitor, plus we’ll have the capability to plug-in our laptop for some advanced trans tuning and other controls. The Holley site made it easy to boil down exactly what part numbers we needed including the ECU, the injector harness, drive-by-wire harness and more.
The site also has pages dedicated to LS swap applications, including our ’71 C10 so it was easy to scroll through the site and find engine mount systems, headers and manifolds, trick crossmembers, complete exhaust systems and more. Follow along as we detail our C10 LS swap.
Products used from the Holley Family
Terminator X Max – 550-934
Injector harness – 558-214 (supplied with ECU)
Main harness – 558-102 (supplied with ECU)
Air Temp Sensor – 554-121
Sniper Universal Pump Module Assembly - 19-350
Sniper EFI Fuel Hose Kit (40’), filter, clamps - 526-10
Hooker Blackheart Engine Mounts - VK090152
Hooker Blackheart Engine Mount Brackets - BHS511
Flowtech Exhaust Manifolds - 11730FLT
Holley Oil Pan - 302-2
Holley Oil Dipstick - 302-15
Holley Oil Pan Gasket - 6665G
DBW Harness, Early Truck - 558-428
Optional Hooker Blackheart Crossmember - 71222024HKR-2
Optional Frostbite Radiator - FB311
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