Main reason I'm replacing them is because while adding oil one day it smoked pretty bad afterwards but quite after a few miles so I'm assuming the new oil was leaking down the valve stem so I'm guessing it's the valve seals. They are replaceable with the heads still on the block right?
Quote:
Originally Posted by BigBlocksRule
If you're going to go all one way, I'd go umbrellas, particularly on a work engine. You don't need to over clean the exhausts. I've even seen positives on intakes and nothing at all on exhausts in hard run apps like grain haulers, etc. that lugged when loaded. Plan to burn a little oil, but you won't freeze a valve in a guide!
|