I am not saying a max effort W8 won't do the job but what would one of those pro stock truck heads cost complete and assembled with springs nessacary to handle the cam nessacary to turn a 500 inch motor effectively 7500 RPM? That is why no one builds 500 inch SBMs

Of course you have guys like me who would build one in a heart beat if the 500 inch kit was reasonably priced and put a stage 3 eddy on it and have a blast sounding very mild and running incredible times I remember several years ago about Rons demon in a magazine and thinking that is almost exactly how I would aproach building a car if I had the $$$ and and skills but it would be a 68 dart