honda305.com Forum
Vintage Honda Owners, Restorers, Riders and Admirers
CB77 Head Conversion to CA77 Cylinder / Motor
CB77 Head Conversion to CA77 Cylinder / Motor
Has anyone any knowledge / comments on putting a two carb CB77 Head on a CA77 Cylinder / Motor then dropping into a CB77 Frame?
-
cyclon36
- honda305.com Member
- Posts: 528
- Joined: Sun May 16, 2010 4:39 pm
- Location: Temple, GA
- Contact:
Re: CB77 Head Conversion to CA77 Cylinder / Motor
Just wondering, but if it' going in a CB77 frame, why not a whole CB77 motor?BLUE62 wrote:Has anyone any knowledge / comments on putting a two carb CB77 Head on a CA77 Cylinder / Motor then dropping into a CB77 Frame?
-
LOUD MOUSE
- honda305.com Member
- Posts: 7817
- Joined: Mon Aug 15, 2005 8:23 am
- Location: KERRVILLE, TEXAS
Re: CB77 Head Conversion to CA77 Cylinder / Motor
Other than the gears ya would have a similar engine/bike HONDA issued. ............lm
BLUE62 wrote:Has anyone any knowledge / comments on putting a two carb CB77 Head on a CA77 Cylinder / Motor then dropping into a CB77 Frame?
CB77 HEAD TO CA77 CYLINDER / MOTOR
My concern over the conversion is the CA77 is a 360 degree crank (both pistons up and down at same time) versus the CB77 with opposing 180 degree crank / piston movement. The piston tops may be different, as well as the Cam timing, etc. etc. The CA77 has a different loap and sound that might make the change interesting.
-
LOUD MOUSE
- honda305.com Member
- Posts: 7817
- Joined: Mon Aug 15, 2005 8:23 am
- Location: KERRVILLE, TEXAS
Re: CB77 HEAD TO CA77 CYLINDER / MOTOR
<<<<<<<Has anyone any knowledge / comments on putting a two carb CB77 Head on a CA77 Cylinder / Motor then dropping into a CB77 Frame?>>>>>>>>>>>
Ya will need to do cam timing changes and a different points cam.
No problems with the pistons/valves in fact ya will gain compression.
HONDA issued CB bikes with this engine as stock. ..............lm
Ya will need to do cam timing changes and a different points cam.
No problems with the pistons/valves in fact ya will gain compression.
HONDA issued CB bikes with this engine as stock. ..............lm
BLUE62 wrote:My concern over the conversion is the CA77 is a 360 degree crank (both pistons up and down at same time) versus the CB77 with opposing 180 degree crank / piston movement. The piston tops may be different, as well as the Cam timing, etc. etc. The CA77 has a different loap and sound that might make the change interesting.