My t-bird street car/daily driver that I installed a 96 Stang GT 4.6 is in desperate need of rebuild sticky valves, knockin sound when it first starts and sometimes in between shifts, the bird was born a 4.6.Looking for info for what years of 4.6 cars/trucks will drop down in till the Stang engine is rebuilt. Might take a while family comes first. Thanks for your info and help... DAN