Jones Head - Racers Only

[Alan Roehrich]

I'm going to say this as a semi retired competitor and engine builder. Take it for what it is worth.

I'm not even sure there should be a "porter's head" allowed. That's really not in the spirit of Super Stock. Not every combination has one available.

In all honesty, if there is a bare unmachined casting available for a certain head, that head shouldn't be legal.

Why? Because it is an unnecessary escalation that makes tech nearly impossible, drives the cost up even further, and defies the spirit of the class. Heads available in rough or cast form, barely machined, allowing valve seat and valve guide locations to be significantly altered, along with other modifications that would be difficult and/or cost prohibitive just aren't what the classes need.

While it is true that there were millions of small block Chevy engines built, there have also been at least half that many raced, and there have not been many replacement castings made in a long damned time. Face it, the small block Chevy is the sportsman motorsports engine.Even though it was produced for nearly 5 decades, eventually, at the rate it is raced and used in hot rods, the cores have been used up at an alarming rate.

However, there have been reasonable facsimiles of the original parts made for a while, the aftermarket has made cast iron cylinder heads with 64cc to 72cc chambers, and 164cc to 172cc ports, for decades. Those could be accepted replacements, and that should be good enough.