Stocker Head confusion

[Dwight Southerland]

Beyond the cost of 'enhancements', when you consider machine work followed by flow bench work to find the best combinations, @ $70-$100/hr it doesn't take long to run up a bill. It's the time, not the amount of modifications. Before the flow bench era, just the cost of precision quality work was expensive. Now, if you want some real development done on heads, the cost of the time will kill you. I have spent 40 hrs. easily just trying different seat angles/approach angles/valve head configurations for a head. That's just to find what posts the best numbers on one cylinder. Then you have to repeat that work seven more times. It may be fun, but it's also a lot of work and I get paid for it.