Junk in my new motor...
You could put new seals in while the heads are on the motor. A little compressed air and a valve spring remover no sweat, done it plenty of times. Just did it two months ago on a '92 Acclaim with a 2.5 and after I get done with the cam change in my Jeep I am changing the seals in a 400 in a '77 Cordoba.
Chuck