03-18-2017, 06:58 PM
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CC Member
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Join Date: Dec 2004
Cobra Make, Engine:
Posts: 195
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Quote:
Originally Posted by olddog
The valve sizes bugged me, so I looked up the Cleveland 4V heads. They are 2.19"/1.71" and the Chrysler Hemi Heads from the 1960's are 2.25"/1.94".
Also at first glance I realized these are not a true Hemi head. However when I looked more closely these are far from a Hemi head. I'm not sure they are deep enough to require a domed piston. They quoted a chamber CC that sounds like you could use a flat top piston.
Now that said, the Hemi head design has its problems. So maybe they solved a lot of problems with this design. However I'm not sure they will outperform a set of CHI heads.
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These heads look almost identical to Kasse Boss 429 heads in the combustion chamber.
Probably didn't hurt that Greg Brown who makes them used to work for Jon Kasse |
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