I am doing a 03 4.6 engine swap on my 98 and I am using the 98 timing cover so everything bolts up. I have a 700 core charge on my OEM block but I am having a hard time finding a npi used or new timing cover to put back on my original block. Jasper will not take the core back without a timing cover and I can't used the 03 one since there are slight differences. Ebay has ones for like 96-00 Mercury's but i was uncertain if those would work. What all will fit and be the exact same cover from 4.6's in different cars.