I’ll agree with some of that, but it seems like the “bulk” of people building these under 575hp SB strokers sure like the idea of being able to do it on pump gas, which is much easier to accomplish when you have good quench........ which is just easier to obtain with off the shelf pistons and closed chamber heads.
One can modify the 60779 RPM head chamber if they want to unshroud the valves a bit, but it would still have a closed chamber that easily facilitates quench.
Yes, you can get there with open chamber heads, like w2’s, but with the added cost of custom pistons.
My point is, it’s just not necessary at that power level.
I’m not advocating for anyone to swap out their w2’s for RPM heads.......but, if you’re starting from scratch, and the target power level is under 575hp...... the RPM’s are a pretty easy path to that result.
If the build parameters are based on the desire to make up to about 575hp, IMO the closed chamber is a benefit of using these heads in that application, and still allow for sufficient flow to meet that goal.
