Need help with this one

[kawasakiman27]

From what I understand is 99 and 2000 3.0l engines had different valves and springs. This I know for sure. Ford also lists a different part number for the rockers. Question is, can I use my older cylinder head rocker arms on a newer F6DE-GC head? The push rods, fulcrums and bolts are all the same part number, will this still work?

 

[rurouni20xx]

if the part numbers from yr to yr match they should work. they wouldnt put a number on a new part, they would change the part number or use the same number and have and 00 for the old part number extension and 01 for the new or superceded part. if the numbers are the same for both yrs then they should interchange.