Honda C engine

Honda's first production V6 was the C series; it was produced in displacements from 2.0 to 3.5 liters. The C engine was produced in various forms for over 20 years (1985–2005), having first been used in the KA series Legend model, and its British sister car the Rover 800-series (and Sterling). It was the second mass-produced Japanese V6 engine, introduced two years after the Nissan VG engine. All C engines share in common a 90-degree V-angle from bank to bank, common cylinder block bore centers, and four valves per cylinder. It is an all-aluminum design, and uses timing belt-driven single or dual overhead camshafts; the water pump is also driven by the timing belt. All C engines use an interference design; if the timing belt fails, any open valves will clash into the pistons, and severe engine damage will occur. The engine family can be broken down into three sub families: C20A, C20AT, C25A and C27A (transversely mounted) C30A and C32B (transversely mounted rear) C32A, C35A, and C35B (one-off) (longitudinally mounted) As a general rule, interchange of parts will not work between these sub groups.