Keeping older vehicles running is more popular now than at perhaps any time in recent history. New hardware, wiring harnesses, ECUs, turnkey crate engines, and accessories make 4x4 repowering easier ...

Fact:Eric Hsu will be picking his favorite tech question for each installment of Question IT over the next few months, and we’ll be hooking up whoever submitted it with some new threads from our ...

This custom 124 Spider ditches its 1.4-liter engine for something even better. The owner tells us how the project came to ...

Helderburg’s Defender restomod keeps its diesel heart, but adds wild upgrades inside and out, including CarPlay and custom ...

Yesterday, this Ferrari F355 V8 engine and accompanying six-speed manual gearbox came up for sale, so we asked you which cars would be best for a swap. These are the responses we saw the most. The 4C ...

The following material is a brief snyopsis of Chrysler's MoPar Engine Swap Bulletin and, because of recent safety and emissions restrictions, is for vehicles intended solely for off-road use in ...

A dual-fuel conversion system can offer some of the fuel- and emissions-saving benefits of a natural gas engine without going out and buying a brand-new truck. Recent changes in Environmental ...

Hey, we love carburetors as much as the next gas monkey, but it's hard to beat the driveability advantages of electronic fuel injection. Even if an EFI system doesn't necessarily deliver a performance ...

With the goal to convert its entire fleet of more than 100 vehicles to operate on natural gas, Virginia-based TFC Recycling has placed an initial order for diesel-to-natural gas engine conversion kits ...