Yep pedalchoppers is the site, and now that I think of it it does seem that I have seen a pic or two somewhere with that head on an engine, maybe a youtube vid or something.
Its funny that you would mention the thickness of the cooling fins Tom, I had thought the same thing when I saw it, I wouldnt want something to cool any less than a stock head does, somethng that does seem odd to me is how I keep reading posts about overheating issues with the stock head and as was mentioned earlier in this thread an issue with the pirate head causing engine overheating.
I guess I'm not sure how hot is to hot on these engines.....?
I live in central Texas and this time of year for at least 3 or so months we have triple digit heat almost every single day and riding my bikes here with the stock heads I always shave down and make thinner head gaskets for, Ive yet to have a single issue/failure with an overheated engine, I ride my bikes into town many times throughout the summer months and those are trips made for 8-10 miles at close to WOT the entire time, I have not had any major engine failures since switching to Opti2 oil either so maybe that has something to do with it, not sure about that one and not intending to open the Opti2 can of worms here, just my personal experience and it has been a good one for four years now.
Tom, the way you described to cc the head doesn't seem crude to me at all, back in the old hot rod days we could buy a kit made of clear plastic that would go over the combustion chamber and we added water from syringe to check how many cc the chamber was if we didn't already know by another way to identify, we knew the double hump or as some said camel hump small block Chevy heads were 64cc and the old 265 and 283 power pack heads were around 57cc chambers, I knew most of these just by sight, markings or casting numbers.
Anyway so much for all that ........LOL!
Thanks for all the input and opinions here fellas, personally since I have never had any overheating issues I wouldn't be afraid of running one of these pedalchopper heads just to see how it works, I like its look better than any I've seen so far, I will contact pedalchoppers and ask what the combustion chamber size is, maybe I can get some info right from the horses mouth to help me decide if it's a road Ill go down or not, if I dont like the reply I get I'll just go with another head, maybe the "Fred Head" which is also a good looking head, I never liked the looks of the manic/pirate head, reminds me of an ash tray...... no offense intended to anyone who may run one or like them, just my thoughts here.
Peace and Happy Riding, map