I got a used cyliinder head, and it came off a 98-99 crown vic. I was told it's a PI head, but I am not really buying into it. I don't want to tear my head off if the replacement isn't right. The little sticker which usually say pi on it is torn up so i can't see it. the only number i got are the casting numbers RF-F5AE-6090-B22A. this is for the LH side. Help ASAP, Need this swap done today. Thank you!