See also the Cleveland-derived Boss 351 and quite different 351 'Windsor' Windsor Block 351 Cleveland 351 Cleveland engines Code The oiling system has been widely criticized but has not proven any less reliable than the Windsor line. Inside the block, large main bearing caps are specified for durability, allowing 4-bolt mains on some engines. These covers are secured with 8 bolts, as opposed to 6 on the Windsor.Ī simple differentiator between the Windsor and Cleveland series is the location of the radiator hose - the Windsor routed coolant through the intake manifold, with the hose protruding horizontally, while the Cleveland had a dry manifold with the radiator hose connecting vertically to a separate timing chain cover. This allows for a narrower engine profile. A novel feature of the engine is that the heads appear to twist, that is that the engine to head surface is not parallel to the valve cover surface - installed the heads are at an angle while the more horizontal valve cover surface has the covers extending mostly vertical. The 4V heads had massive valves canted to the sides with a 'poly-angle' combustion chamber.

The 335 Cleveland used smaller 14 mm spark plugs in one of two different cylinder heads, both with 2 valves per cylinder.

The 335 series was very different internally from the similar-looking Windsor series. Although all three of these engine families continued in production the Cleveland, only outliving the FE by a half-decade, was eventually abandoned in favor of the more compact Windsor design. The 335 was used as an option in mid-sized vehicles and trucks concurrently with the larger 351 member of the Windsor small-block family as well as the mid-sized FE V8 family. The series was nicknamed Cleveland after the Cleveland, Ohio engine plant in which most were manufactured. Conjecture relating to this designation revolves around a prototype 335 CID (Cubic Inch Displacement) engine Ford developed for the Marine industry to design a V8 motor eliminating the need for water to pass through the inlet manifold and to delete the need for a separate cam timing cover. The significance of the Numerals '335' designated to this series of Small block Ford V8 engines is relatively unknown. The Ford 335 engine family were a group of small-block V8 engines built by the Ford Motor Company between 19. Ford 335 V8 351 Cleveland V8 in a 1969 Ford Mustang

1978 ford engine codes