Aluminum four-cylinder short block with gold-coated valve-relief…

Overhead view of a disassembled aluminum inline-four short block on a stand, deck surface bare with the head removed and three of the four bores visible, each holding a gold-coated piston with four valve reliefs. Head bolt holes, coolant passages and dowels line the machined deck; the digital camera date stamp reads 02/16/2012.

AI caption February 2012 · Photo 90 of 98