.030 milled from a GT40Y head OK?

[R100RT]

Stangers,

I have a set of Y303 heads that were O-ringed. I want to mill off the O-ring groves and use them on my '94 5.0L. When this is done, the heads will have had .030 milled from them.

I would like to know if I can still use these heads and what problems I need to watch out for.

 

[JS94cobra]

Stangers,

I have a set of Y303 heads that were O-ringed. I want to mill off the O-ring groves and use them on my '94 5.0L. When this is done, the heads will have had .030 milled from them.

I would like to know if I can still use these heads and what problems I need to watch out for.

combustion chambers get smaller. CR goes up!

 

[R100RT]

combustion chambers get smaller. CR goes up!

They started out as 64cc so that may not be so bad. What is the volumne of the stock, E7?, heads?