Overhead camshaft engine
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An overhead camshaft engine is a piston engine in which the camshaft is located in the cylinder head above the combustion chamber. This contrasts with earlier overhead valve engines, where the camshaf
OHC cylinder head (for a 1987 Honda D15A3 engine)
SOHC design (utilizing a rocker arm)
DOHC design (with separate cams for intake and exhaust valves)
Rubber timing belt during installation
Overhead valve engine
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An overhead valve engine, abbreviated and sometimes called a pushrod engine, is a piston engine whose valves are located in the cylinder head above the combustion chamber. This contrasts with flathead
1894 prototype overhead valve Diesel engine
1904 patent for Buick overhead valve engine
1918 Buick 242 engine, right side.
V8 engine (with intake manifold removed), showing the camshaft, pushrods, and rockers