Heads

Unless there is a specific goal in mind, and one that’s going to require the heads be pretty “good”, then for the most part any true 340/360 head should be suitable(with the appropriate work) for the typical hot street 340/360 build in the 350-450hp range.

That being said, the effective quench “easy button” is closed chamber heads with flat top or inverted dome pistons at zero deck height.

Depending on local labor rates, it’s pretty easy to spend “new head” money reburbishing old iron heads that would be capable of making similar power.