Disassembled engine cylinder head on workbench with valve ports,…

An aluminum engine cylinder head sits upright on a workbench, showing its combustion chamber face with valve ports, seats and threaded studs protruding from the bottom. Surrounding it on a pink cloth are disassembled components including springs, bearings, threaded collars and hand tools, with a brick wall and yellow container in the background.

AI caption December 2007 · Photo 1103 of 1819