Close-up of cylinder head valve springs, retainers and rocker ar…

Extreme close-up down into a cylinder head with the valve cover removed, showing two black valve spring retainers with split keepers, coiled valve springs, and roller rocker arms on studs with polylock adjuster nuts. Surface rust and old sealant are visible along the aluminum head rail at left.

AI caption February 2004 · Photo 78 of 159