A hot air or Stirling engine runs without carburetors, injectors, cams, valves, timing chains, spark plugs, or anything. It’s incredibly simple and can even be emissions negative, running on waste ...

Go inside GM’s Performance and Racing Center to check out the new 1,004-hp crate engine’s revolutionary cylinder heads.

Tech’s ProValve off-road suspension re-valve kits designed to not just upgrade but to “completely transform” how your ...

After the other two, a 5.0-litre, 32-valve Coyote feels a little torpid at low revs; even with the weight advantage, the torque of forced induction undeniable. Stick with it, however, and the ...

So there’s variable valve timing for the first time in one of these, aimed at improving low-speed drivability of the 4.0-litre flat-six alongside the 8,000rpm, 420hp dimension. The four-valve ...

The rotating assembly consists of a steel crankshaft, steel H-beam connecting rods, and forged aluminum pistons. The valve train assembly consists of a hydraulic roller camshaft with undisclosed ...