ok i have an 81 f100 with a 300 straight 6 last weekend i put a head gasket out. i believe it may have been partially leaking for a long time. because there was tons of build up on the spark plugs last year also. the truck never overheated heck im lucky if it is even in the n of normal. also the baseplate gasket on the carb blew out to. i believe all this happened from me extremely overrevving it. well its all fixed now and the truck runs great it even heats up a little better. now the first couple days after the repairs it was blowing smoke out of the fill cap( it was a bad fit ) and out of the dipstick. i replaced the fill cap with one with a breather. i pulled out the pcv valve with the engine running and it was sucking pretty good. i sorta figure i got the smoke from having some water left in the pan from the head gasket. well i drove 2 hours home today. and there is oil covering everything. hell i had to add 3qts on the way here. it took only an hour for 1 quart to dissapear. so i guess my piston rings are fubar (am i right or is there another possibility). by the way the cylinders were in great shape almost no ridge and still had the corsshatch.
so is there anything else it could be other than some fubar piston rings
so is there anything else it could be other than some fubar piston rings