Rusty steel elbow beside two polished aluminum flanged water nec…

Three flanged coolant/water neck elbows lined up on a white Ford DOHC cast valve cover used as a bench: a rusty corroded steel original on the left and two polished bare aluminum replacements of differing bend radius beside it. The machined two-bolt flanges and inner bores are clearly visible.

AI caption February 2009 · Photo 269 of 465