mazda mzr-z6

The Mazda Z-series is a smaller gasoline inline-four engine ranging in displacements from 1. 3 L to 1. 6 L. They are the evolution of the cast-iron block B-engine.
The Z-engine has 16-valves operated by dual overhead camshafts, which are in turn driven by a timing chain. The block of the 98-02 Z5, ZM and ZL engine is cast iron same as the earlier B series of engines.
Other Z engines have aluminum alloy block and head, with cast-iron cylinder liners. The block features split upper and lower block assembly for added strength and rigidity, special long intake manifold for added torque, S-VT continuous variable valve timing, and a stainless steel 4:1 exhaust header....