Hello Again
I dont know if this is usefull, if anyone is going to get some 64mm pistons made, the latest ASSO pistons used Kawasaki rings Pt. No. 13008-1128, they are .75mm and a STD part so should be easily available.
Gordon
SAFOJ
			
			
									
									
						honda305.com Forum
Vintage Honda Owners, Restorers, Riders and Admirers
Latest Registry Entry
                        1965 Honda CP77 — Ulsan Metro City, Rep. Korea
                        Restored with original parts — Owner: J. Doe
                    CB77 Race Pistons.
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				GORDON BROWN
 - honda305.com Member
 - Posts: 154
 - Joined: Wed Oct 27, 2010 12:36 pm
 - Location: edinburgh scotland
 
Stan,
I do some race prep work for hire, but not often and usually just for friends, so I'm not trying to advertise or to get work - just passing on my experience.
Take it or leave it as you see fit. It's worth what you pay for it as they say. :-)
Thanks for sharing the pics of your CB77. It's always good to see another one out there on the track.
			
			
									
									
						I do some race prep work for hire, but not often and usually just for friends, so I'm not trying to advertise or to get work - just passing on my experience.
Take it or leave it as you see fit. It's worth what you pay for it as they say. :-)
Thanks for sharing the pics of your CB77. It's always good to see another one out there on the track.
- 
				Stan Lipert
 - honda305.com Member
 - Posts: 32
 - Joined: Fri Oct 26, 2012 9:00 am
 - Location: Cleveland
 
Gordon, thanks for the info. I have spoken to former long time CB77 racer John Early, he had used a KZ650 Wiseco big bore forged piston in the late 80's/ early 90's. Around 64mm. 
Here is another version of the CB350K RSC piston:


The intake valve pocket was hand ground for a larger intake valve.
Stan
			
			
									
									
						Here is another version of the CB350K RSC piston:


The intake valve pocket was hand ground for a larger intake valve.
Stan