Forum Members, Thanks for the info. Reason for the question is the 8N I purchased this summer had been newly overhauled. The seller said he had added special pistons, shaved the head and decked the block. He said the compression "may be an 8:1 ratio" ?? Even as a novice to mechanics the math just did not seem to work out. There is only so much space to work with. With that being said, the 8N seems to be a lot more powerful than my not so worn out 2N. Had to change the 33 to a 243 carb to make it run right which may also add to the power. Again, any other thoughts are appreciated. In retirement my goal is to learn something every day. Mr. T. Minnesota
Re: higher compression ratio? in reply to Mr. T. Minnesota, 12-13-2012 15:31:36
It's not 8:1.
Probably closer to 6.5:1.
Your 2N most likely has flat-topped pistons in it while the 8N almost certainly has late 8N domed pistons, which are good for a noticeable increase in torque and power vis-a-vis the flat-topped pistons.
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