The cylinder head intake and exhaust ports and intake and exhaust manifolds are shape optimized for improved volumetric efficiency. Mitsubishi reduced the friction with the engine by such as elastic grinding with the valve stems, adopting a superior-efficiency shroud Outfitted plastic impeller from the water pump and making use of https://mitsubishi-4b12-motor71370.theisblog.com/31580401/the-best-side-of-4b12-engine-swap