Chum lee wrote:
Yes, in spite of the "knowledge" you glean from the internet, the engineers at Ford actually do an exhaustive amount of engine research. Even so, they still make mistakes, . . . . just like everyone else. (What a surprise!) When they tell you to change the oil at 5000 miles, they don't just pull that info from their hind quarters. IMO, THEY MEAN IT!
My 1999 F53 V10 is a 2 valve SOHC 275 Hp engine. At a later date (I'm not sure the exact year, you can look it up) it was upped to the 3 valve (315 Hp) and later to the 365 Hp engine. IMO, a phenomenal achievement for a truck engine without changing the displacement.
As someone who worked in a Ford parts department, I can tell you that if you go to the Ford factory parts website, you can look up the part number for the oil pump on the V10, 2 valve vs. the 3 valve. If it's the same, the pump is the same. If it's different, the pumps are different in some way. (maybe oil pressure, maybe flow, I don't know) You can look at the Ford Factory Service Manuals for that. They (Ford) may also use a different oil pressure relief valve, which you can also look up. Not that hard.
Chum lee
310hp was the 2-valve. 362hp was the 3-valve.
