well I hve a question for all of you the 300 athat I have in it does have some blow-by which I can feel comming out of the dip stick. the ealer that I bought the truck from said he thinks that it has a cracked ring. So I am thinking of eather rebuilding the 300 or taking the 351 out of a 1985 pick up I have that was my dailey driver and stick it in. I am on a fairly tight budget so I can not go nuts right now with motor. I am not real crasy about putting the pick up out of service because it is handy to take stuff to the dump and other things now and again