Close-up of a cast-iron V8 engine block lifter valley coated in…

Extreme close-up inside the lifter valley of a disassembled cast-iron V8 engine block, showing the rough as-cast surface coated in dark brown oil varnish and sludge. Threaded bolt holes and a machined rail run along the edge of the valley.

AI caption May 2005 · Photo 40 of 465