A simple valve and engine cross-section. Variable valve timing enables these different behaviours by changing how the intake and exhaust valves work at different engine speeds. Thus, it helps optimise ...

Nearly all 2005-and-later GM LS Gen IV cylinder blocks include provisions to accept AFM and VVT, but depending on the engine option and model year, a complete Gen IV engine assembly can have both ...

Farmington, May 10, 2023 (GLOBE NEWSWIRE) -- The Global Variable Valve Timing (VVT) System in The Marine Engines Market size was valued at USD 38.89 billion in 2022 and is projected to reach USD ...