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Post by bones on Jan 17, 2024 18:27:03 GMT
Doo any of you fellows know what this head is ?? It has a much smaller combustion chamber compared to the stock OEM head for 70 or 71. I have never seen one. I am suspecting it is a OEM HA - 71 head. Thanks for any thoughts  |
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Post by Doo640ER on Jan 17, 2024 20:10:41 GMT
Hey Bones, No numbers anywhere on it? Is it Rotax for sure? Look like it's got paint on it and didn't Doo start painting the motors in 72?
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Post by bones on Jan 17, 2024 22:44:50 GMT
No, there is no numbers any where, all the 340 TnT single heads I have seen, have no numbers. The 71 - 340 TnT single engine was painted black.
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Post by olyman on Jan 22, 2024 1:04:07 GMT
That definitely looks like a 340 high compression head. The dome outside of the main plug area is tiny! The pattern of how it was machined definitely looks like it is a Rotax. Thats about all I can offer unfortunately.
You have an engine for that dr Bones?
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Post by bones on Jan 23, 2024 15:01:18 GMT
Doo640ER, the 71 - 340 TnT single was painted black as OEM
No olyman I will not be installing the head on a engine ( yes I have a engine I could put it on).
The head belongs to another fellow. I made contact due to happenstance with a ( new to me) sled head that recently got the disease real bad. Initial contact was Doo parts other than single cylinder stuff. The conversation moved to him having a problem with a 340 TnT lunger. He went looking for a head or heads and found this one. Sent me a pic wondering if I knew what it is.
Thanks for your thoughts guys.
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