Model A' or B' - Lyons Cast Iron Head

steve hackel

steve hackel

Senior Member
City
midlothian
State
illinois
Price
$650 ?
Hello; I have an NOS Lyons cast iron head that I bought through the
S.O.S.S. magazine about 7 or 8 years ago and never used it - it's never
been bolted on an engine. The 1st owner had a change of heart shortly

after purchasing it from Charlie Yapp (S.O.S.S) and then posted it for

re-sale in the magazine. Unfortunately I have not been able to post pictures here, but will either send them to your email address or to your cell phone if so desired. Guess I'm technically challenged.... :o
Some have asked me which model ; I, II, or III , and truthfully I have no Idea and I' can't find a marking anywhere on the casting. Back then there
were 2 different compressions available in either 7 to 1 or 8 to 1 - and I
don't remember which one, but to guess then I might have grabbed it
immediately for the 7 to 1 in favor of my older engine... but not sure.
I'ts been years since Charlie ran any of the cast iron Lyons, and at last
count they were listed at $650, and that was way back when.

Any Questions I'll answer to my very best ability, and pictures provided of
any angle you wish if my pictures don't answer any and all your questions.
regards, Steve :D
 
I learned something new - again - today... Several have helped me identify this
head and it seems to be a Lyons '1' version, and depending on who's information I

have had the opportunity to read regarding the compression ratio, it's either a

6:1 or 6:5 to one C.R. The head was designed to accept another set of plugs

(8 total) if someone was so inclined to machine it that way. Based on what I have learned, I will drop the price to $500 and see what develops. Thanks
 
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