Le Mans: GT Class
Join Date: Oct 2017
Location: Denver, Colorado area
I looked into rebuilding my daughter's engine after it blew a head gasket. The cost was pretty high, and the unknown costs of machining the block and/or head drove our decision to just replace the engine with a later model 2.5L Duratec from a Ford Fusion. It turned out to be an excellent choice, and I'll do the same in a heartbeat for my son's Mazda if it encounters any problems.
Lots of great advice on these forums for performing the 2.5L engine swap.