TW heads now 1/2 o-ringed - help....

[Unit 5302]

Here's my opinion on Oringing heads. Unless you are running serious boost, they can be detremental. If you detonate, especially under boost, you'll destroy a piston if you are o ringed. If you have standard gaskets instead, you blow a head gasket Which would you rather deal with?

Obviously that applies much more to boosted engines than N/A engines. Chances are you'll get a little notice on a N/A engine before you lose either gasket or piston.

If you are running serious boost, it may be too much compression for the 4 bolt Ford heads to keep sealed, even under normal circumstances, which is where the Oringing is really necessary.