340 Piston Selection

yellow rose said
If his heads have a .060 recess cut in them, the piston needs to be out of the deck.

While that is the best method, what to do if you can’t? Not build the engine or make concessions?

As for killing flow, you'd have to spend some time on a flow bench. It damn sure does affect flow. Think about how important a top cut is. Then you move the deck closer to the top cut? Bad idea. You can mill a head within reason. To run a zero deck and then deck the piss out of the heads to get the CR you want is *** backwards.

I agree with the second half of this paragraph. With the first half, I do not necessarily disagree but, it would be closer to working with a closed chambered W head. W5, W2. Power still made with these engines. You just have to take a different approach to how things are done. It is not a huge step. It’s a minor thing that most Average Joe’s would never ever notice.
MAre you trying to squeeze every last ounce of power out of this engine? If not, then do not worry about it. What yellow Rose is saying makes sense if you’re going to start racing for the money. Then again, that would not be the cam I’d use, that would not be the head I’d would use, that would not be the displacement I’d use, ( unless forced to buy the rules!) that would not be the piston that I’d use, those would not be the rings I’d use, etc...

If you can indeed find the proper piston for the job designed with a dome to be used with those Edelbrock heads, then for Shirley, go for it!