Need Help?
what kind of head gasket should I buy?
I would say if you pull your cap off the passenger valve cover and see if it is foamy or "whipped" looking consistency...then you have coolant in your oil. Thus resulting in the blown gasket.
You aren't gonna really pick uppower by switching heads. I would suggest that you get your 853's milled and use them again...or find someone local that will port them. It will be the same as getting some ported 243's if they can pull off a good job.
Well, i left it generalized to MLS just because if you have a different tolerance with a different head, or a milled head. Multi-Layered Steel gaskets come in different sizes.

