There's going to be 20 people who wouldn't do this I bought a 56.00 headgasket set on eBay did the complete motor and used permatex spray gasket on the used ones no leaks no failures. There's a Aussie who did this with the Head Gaskets ps I'm not that Brave. SteFin Junk Yard Dog Shade Tree I made my 4.0 sohc timing chain tools also I'll post pictures later.