N/A you can make 1000-1100 street engine without too much effort on engine, its all on cam selection and matching of parts.
As for reliability the valve train seems to be pretty bulletproof when pushrod oiling and keeping the heat in check.
That seems to be what most are saying about them. I am an NA guy, always have been. And I was kinda thinking these would be right around 1000 NA in street/strip trim depending on cam and compression. Maybe even a tad north of 1k power. Most of the street/strip big cube Hemis are in the +800-900 range, and the Predator heads outflow most of them. Seems like a good valve train to take advantage of the higher ratios on too..I would like to build one of these some day for a drag week type car so its very interesting to see what you guys are able to do with them.
I see the gripes about the initial costs of these heads, but most people that go the Millennium head route won't tell you what that ended up costing them. Heck, there is no cast intake I know of that fits them. So when you consider an NA Millennium headed Hemi vs. a Predator headed engine of the same size, I bet the later is more cost effective in the end, proves more reliable, and makes a tad more power.
My next curiosity, what is the best trans to put behind a Predator engine? I bet everyone that runs one has something different based on their application, but I still like to know....You guys running a 2 speed or a 3 speed?
