I see there is a posting on some 186 casting heads(not me),but my question to you would be:What engine combo(s) would you use with these? And what numbers (approx) would I expect? I would like to build something w/ these and in the future(as soon as funds permit) upgrade to some aftermarket aluminum heads.The castings I have 2.02/1.60 and if I am not mistaken a 64cc chamber.Thanks for your time.





P.S. That "Phantom machine shop" has nothing on you!! LOL

I see there is a posting on some 186 casting heads(not me),but my question to you would be:What engine combo(s) would you use with these? And what numbers (approx) would I expect? I would like to build something w/ these and in the future(as soon as funds permit) upgrade to some aftermarket aluminum heads.The castings I have 2.02/1.60 and if I am not mistaken a 64cc chamber.Thanks for your time.





P.S. That "Phantom machine shop" has nothing on you!! LOL
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LOL, thanks but we still be learnin,,,, ain't got the "science" deal figured out yet :D

Good old head for it's day & if you have them & they are in good condition & the valves haven't been sunk 3 feet or so,, still a pretty fair one capable of decent power without a ton of work.
I would say it would be fairly easy to make 375+ honest HP with them & they are capable of quite a bit more in good hands but as posted I would be careful of what you spend as for $600-$700 you can have brand new SR type heads with excellent parts that already have the screw-in studs, hard seats etc,,,
You can buy them for less, just be sure of what you are getting,,,

I already have them(free) and they are freshly redone(got them that way).All new valves,screw in studs, and guide plates.Now I just have to decide on a combo(350,383,or 400).Thanks again!