Honda-SOHC

Other Stuff => Interchangeability => Topic started by: Bradleybear on January 25, 2017, 12:05:26 PM

Title: 400f frame with 550 engine
Post by: Bradleybear on January 25, 2017, 12:05:26 PM: does anyone know if a 550 engine will fit in a 400f frame sorry if this has already been asked

thanks
Title: Re: 400f frame with 550 engine
Post by: hairygit on January 25, 2017, 12:14:03 PM: I would say probably not, the 400 frame is considerably different to the 550, and chances are the 550 motor is taller.
Title: Re: 400f frame with 550 engine
Post by: Bradleybear on January 25, 2017, 12:15:50 PM: you happen to know if the 500 would fit
Title: Re: 400f frame with 550 engine
Post by: hairygit on January 25, 2017, 12:18:54 PM: The 500 is externally the same size as the 550, only the bore size is different, so no again. Why do you want to do this?
Title: Re: 400f frame with 550 engine
Post by: Trigger on January 25, 2017, 12:57:45 PM: The only engine that will fit a 400 frame is a 350 four.
Title: Re: 400f frame with 550 engine
Post by: mike the bike on January 25, 2017, 04:08:13 PM: And the 400 engine :)
Title: Re: 400f frame with 550 engine
Post by: matthewmosse on March 04, 2017, 11:16:54 PM: I picked up a very cheap 400/4 engine years ago as the guys in the breakers saw my 500/4 and said they had an engine that 'might fit that' in the back of a shed. I bought it home and decided it was way too different to fit, from what I rember it looked possible for a 400 engine to go in a 500 with a lot of work but the other way would not very likey be viable. If someone really wanted to it might be possible - many years ago I worked on a project fitting a cr500 engine into a Cagiva mito 125 leaving the bike looking very close to standard - might be possible with enough skill, time, rule bending etc but not worth it.