Technical How to punch holes in Moroso valve covers

What is the best way to punch breather/ filler holes in an old set of Moroso tin valve covers. I found a set without holes and not sure how it is done. Thanks, Joe

 

Greenlee punches.

 

A step drill would probably work ok. You would have to debut the inside of the hole with a half round file or some sandpaper on a dowel..

 

https://www.harborfreight.com/2-pie...-drills-96275.html?_br_psugg_q=step+drill+bit

 

If you use a step drill, it will help if you use some wood screws and washers to secure the valve cover to a board first. That way you wont be trying to drill it with one hand and hold with the other. Only need a couple screws holding it down, but it's much easier this way.

 

But . . . .that deprives the opportunity to bleed in your shop that day. What fun is that?

 

Don't forget a baffle after you've made the hole.

 

Moroso covers?

railway spike and a BFH

 

Probably OT.

 

Are you mad ??? They are bringing big bucks now days - for the new kids on the block - wanting to duplicate dad's engine cover choice from picture's.

 

I would definitely look into what these valve covers are bringing before chucking a bit into that drill !

 

The chrome ones are heavy MFers, steel I guess. Got 'em on an OT. But Morosos are OT here anyway. Wait for the lock..