Quote:
Originally Posted by randy wilson
I ain't in bed with Brodix. I'm for ANY suggestions of a limited cylinder head. Show me another company that builds heads for the big three with same flow numbers for each casting, and spec cast into the intake and exhaust port, and I'm all for it. I think it would be great to have all 5 casting companys present a legal head. Does that answer your question?
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Well,,, it answers one of them. Just to be fair,,, I did go on the Brodix website and looked up the spec heads you suggested,, heres what I found:
SPCH (Chevy): 2.08 int - 1.60 ex. 215cc runner - 23 degrees
SPFO (Ford): 2.08 int - 1.60 ex. 195cc runner - 20 degrees
SPMO (Mopar):2.08 int - 1.60 ex. 192cc runner - 18 degrees
Now, I may not be the brightest light in the harbor,, but other than the stated valve sizes,, these heads don't look alike to me,, when runner volumes vary from 192 to 215 cc,, a difference of 23, and valve angles have a difference of five degrees, from 18 to 23.
I did see that AFR offers a 195cc SBC head that's closer to the other two in runner size, and I know there are manufacturers that offer 18 degree heads for SBCs,, and that the Mopars seem to have the smallest offerings from the various head makers.
I don't know what your solution will be, but perhaps you'll have to agree on a runner volume, a valve angle and valve sizes and let the racers do their thing. Knowing the rules is their responsibility, and they should know that this could be policed at any given event,, so racer beware. Just a thought, since the "spec" heads appear to be so different. I would love to see this class take off,, don't get me wrong, good luck with it.
Danny Durham