Hello all again . So I found a low milage 5.4 3v engine for my expedition (55k miles) . Before I put it in I wanted to see what if any internal upgrades I can do to make it last longer . For example the timing chain guides , stock ones are made of cheap plastic ( so I've heard) so any suggestions on the guides, chain tensioner, oil pump , cam phasers ect. Thank you
Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing