Cylinder head construction

A cylinder head for an internal combustion engine having an engine block provided with a plurality of cylinders and having a machined flat surface formed on the top portion thereof,

• said cylinder head having a lower head portion and an upper head portion secured to said flat surface of said engine block,
• a valve train incorporated in said cylinder head and associated with each of said cylinders and including a pair of intake valves, a pair of exhaust valves, and a pair of overhead camshafts for actuating said intake valves and said exhaust valves,
• a fuel injector located centrally between said intake valves and said exhaust valves and a pump for providing fuel to said fuel injector,
• a pair of laterally spaced parallel side walls integrally formed with said lower head portion of said cylinder head and extending upwardly therefrom,
• one of said side walls having an opening formed therein and having a bulkhead union located in said opening and secured to said one of said side walls with one end of said bulkhead union connected to said fuel injector and the other end of said bulkhead union being connected to said pump,
• said cylinder head having an intake passage extending upwardly from said intake valves at a relatively high angle relative to said flat surface of said engine block, and
• an intake manifold communicating with said intake passage and being integrally formed with said lower head portion so as to define an intake plenum located outboard of said cylinder head with a portion of said one of said side walls serving as a common wall between said intake plenum and said valve train.

A cylinder head for an internal combustion engine having an engine block provided with a plurality of cylinders and having a machined flat surface formed on the top portion thereof,

• said cylinder head having a lower head portion and an upper head portion secured to said flat surface of said engine block,
• a valve train mechanism incorporated in said cylinder head and associated with each of said cylinders and including a plurality of intake valves, a plurality of exhaust valves, and double overhead camshafts for actuating said intake valves and said exhaust valves,
• a fuel injector located centrally between said intake valves and said exhaust valves and a pump for providing fuel to said fuel injector,
• a pair of laterally spaced parallel side walls integrally formed with said lower head portion of said cylinder head and extending upwardly therefrom and terminating at a point above a plane extending through the rotational axes of said double overhead camshafts,
• one of said side walls having an opening formed therein and having a bulkhead union located in said opening and secured to said one of said side walls with one end of said bulkhead union connected to said fuel injector and the other end of said bulkhead union being connected to said pump,
• said cylinder head having an intake passage extending upwardly from said intake valves at a relatively high angle relative to said flat surface of said engine block, and
• an intake manifold communicating with said intake passage and being integrally formed with said lower head portion so as to define an intake plenum located outboard of said cylinder head with a portion of said one of said side walls serving as a common wall between said intake plenum and said valve train.