I don't believe this for one minute. 249cfm at 0.400" lift?Looks like flo-tek is selling the 205cc as cast version of the head pictured in post 29 now called "the hammer " https://www.flotekheads.com/product/small-block-ford-205cc-60cc/

I don't believe this for one minute. 249cfm at 0.400" lift?Looks like flo-tek is selling the 205cc as cast version of the head pictured in post 29 now called "the hammer " https://www.flotekheads.com/product/small-block-ford-205cc-60cc/
Yeah I don't believe anyone's advertised numbers. Most will use a big bore and a few other tricks to show big numbers or outright inflate them but that's advertising. I'm not selling or telling anyone to buy any of these heads. I'm just trying to keep info in one place since it so hard to find on these over seas heads and they get whored out by so many suppliers under different names.I don't believe this for one minute. 249cfm at 0.400" lift?
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Confirmed. I received the ProHeader castings and they are identical to the ebay heads that I posted pictures of in February. I may push a sacrificial head through the bandsaw, like Ed suggested, to get a good understanding of how these communist heads are structured. Other than what appears to be some very minor core shift, I'm surprised at how consistent and of decent quality these commie heads appear to be - the ProHeader castings (newer 2018 date code) are spot on with the ebay castings (older 2018 date code). On the sacrificial head, I'll see how easy the valve seats pop out and may try welding on them to see what happens.I'm pretty sure the pro header will be the same as the ebay head. all of the heads I've seen have the same style date batch coding stamped into them by the deck like your picture show and all have the same chamber with the plug closer to the exhaust valve.
Local guy got almost 400cfm out of a set of those chinese cleveland heads, ported of course.
I was looking for other options for Clevor heads again and i ended up coming back to the Avenger CNC heads again. I got 2 more sets of the cnc Avg xtc-r heads coming now as I CAN NOT find any other good bang for the buck canted valve heads with bigger/decent sized ports that can flow 400+cfm for just over $2500 bucks complete...It appears FPS uses this casting for their current Avenger CNC Head.
I bought a set of the blueprint heads pedestal mount version and they are on my engine now. Used comp springs and Ferrea 6000 series valves. Running a E264 cam w crane 1.7 rockers for 5.44 lift.They seen to run quite well. I'm very happy w them. I did clean the bowls up, and sanding rolled the exhaust ports smooth. They went together w perfect 1/2 turn valve preload. I suspect after I run them hard more that I will need bigger than the 19 lb injectors.
Except for a minor enlargement of the intake valve notches in them.Are you still running stock/untouched pistons?
Did you use the ISKY tool to open up the valve notches or does minor enlargement mean free hand? 😜Except for a minor enlargement of the intake valve notches in them.
Free hand w a die grinder and a square edged carbide cutter. They only need to be enlarged 2mm.Did you use the ISKY tool to open up the valve notches or does minor enlargement mean free hand? 😜
You are brave! I'd be nervous about messing them up with a freehand process.Free hand w a die grinder and a square edged carbide cutter. They only need to be enlarged 2mm.