Rusty exhaust side of a cast-iron cylinder head with four carbon…

Exhaust side of a cast-iron cylinder head standing on a wood bench, showing four square exhaust ports caked with black carbon and surrounded by heavy orange surface rust and flaking gasket residue. Valve springs and retainers protrude along the left edge of the assembled head, with a workshop bench in the background.

AI caption November 2006 · Photo 323 of 372