ok.. i have a 96 gt 4.6.. ive had some problems .. this past summer i warped the heads . long story short i had to take them off...and mill them 16 thousands of an inch .. the other day i took a 3 hour trip on the ea way going about 80 the hole way ..my engine now has a nasty tick .. and whats also soundes like a rod knocking.. what happend? its coming from te passenger side of the motor.. i jsut checked my oil and it was pretty dirty..''maybe thats what caused it '' but it has not been long since ive changed it i dont get it .. an sugestions? what can i do to shut it up? its for sale and i need to get rid of this car fast before winter... migt pop off valve covers this weekend ..any suggestion onw hat to look for? sorry i dont no alot about these engines yet any help is much appriciated.. thanks..