i went to the section with the casting #s and couldnt find anything that matched.on the block the numbers i found are FO229CBJ,1550386,394257,and 71.then on the head is 4435F18,7990,and 4437.i know the block and head are different years.i need to find out what years so when i go to the auto store i know what i have.thanks for your help.
jj
