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Has any one herd of Flow Tek cathedral CNC ported heads. I found a set NIB complete. I can not find any more info on them. The guy told me their LS line was bought out buy Profiller. Any info or advise would be great! Art they ported 243/799’s or a Chinese copy? Are they any good for an NA ls1
Last edited by MAXJEEP; Feb 3, 2020 at 06:28 AM.
Reason: Corrected spelling
You are correct they are cast. I emailed flo Tec about the heads and they sent me this
Correct they look to be cast. I emailed flo tek and this is what they sent. I assume they no longer make them. I guess it’s their own casting. I would love to find out if any one has experience with them. Yes I live in Ohio. The numbers don’t look much do rent from CNC ported heads
Their online description says they're a 215cc runner and a 58cc chamber as well as the option for a 2.02"/1.60" or a 2.05"/1/60" Valve.
They look good on paper, especially with the 58cc chambers. I wonder how much material's left to work with for porting. I also like the raised valve cover rails for aftermarket rockers.
I've considered buying those same heads from John for a while now. He has had them listed for sale for a while but nobody has bought them.
They definitely don't flow anywhere near the CNC heads.
They're more comparable to 706/862 heads with the flow numbers of the 799/243, or the 243/799 heads with the chambers of the 862/706, however you want to slice it.
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Flo Tek ls heads 
