The 1970 4-4-2 equipped with the W-30 455 was an epic muscle car but it could've been even better with the 32-Valve W-43 455 ...

One of the distinguishing features is that they don't need valves to operate. That's to say, the Wankel rotary engine design doesn't have valves -- but quite a few rotary engine designs have ...

Truck owners choose the 5.9 Cummins engine because it combines outstanding power features with exceptional durability.

Popular Mechanics’s automotive experts outline the tools and techniques proven to smoke out even the toughest to find vacuum leaks.

While the poppet valves work well at low speeds, they are unreliable at high engine speeds, and the “timing,” or opening and closing of the valves, is uncertain. This is the gravest objection ...

The positive crankcase ventilation valve releases exhaust gas and unburned fuel from the engine block into the intake manifold. All engines allow some exhaust gases, unburned fuel and oil to ...

National Company Law Tribunal (NCLT) approved the merger of Rane Engine Valve Limited and Rane Brake Lining Limited with and ...