PRI 2025: Andy Mcpherson’s Awesome Coyote-Swapped GMC Syclone

Limited-edition vehicles have long been a staple of car culture, and most enthusiasts regard them as something you simply don’t modify. Well, Andy Mcpherson missed that memo and decided to turn his 1991 GMC Syclone into an all-wheel-drive, V8-powered beast. Adding an extra twist to the build, all of the horsepower comes from a modern Ford engine.

A factory Syclone came equipped with a turbocharged 4.3-liter V6 under the hood. Andy’s truck, however, now features a Ford Coyote–based engine built around a Mustang GT350 flat-plane-crank bottom end. A TH400 transmission sits behind the engine, while a transfer case from a GM 2500 truck delivers the all-wheel-drive capability. Boost comes from a pair of 78mm HPT turbos, and a Link engine management system keeps the entire combination under control.

Fitting all of this hardware between the Syclone’s front fenders was no small task. The engine is heavily offset toward the passenger side of the truck to accommodate the transfer case, which forced Andy to engineer a unique cantilever-style front suspension. Out back, the Syclone utilizes a more traditional four-link rear suspension setup.

You might assume from its aggressive appearance that Andy’s truck is built strictly for track use, but you’d be wrong. The Syclone was designed to be street-driven and will see its fair share of drag-and-drive events once Andy finishes sorting out the remaining details.

Be sure to check out the full video, where Andy gives an in-depth tour and breakdown of his seriously impressive GMC Syclone build.