honda305 Home honda305 Auctions honda305 Gallery honda305 Forum Electronic Ignition honda305 Forum honda305 Forum honda305 Forum honda305 Racing honda305 Literature

Auctions  Mailing List    Registry   Marketplace

honda305.com Forum - FULL SCREEN

honda305.com Forum

Login
□ Search
  □ CLASSIFIED_ADS
□ FAQ 
  □ SEARCH_ADS
□ 
  □ MY_ADS
Vintage Honda Owners,
Restorers, Riders and
Admirers

450 head on 305

CYP77 - Police | Race Bikes | Choppers, Bobbers and Mods
Post Reply
olebmw
honda305.com Member
Posts: 12
Joined: Fri Oct 24, 2008 8:26 pm
Location: kansas

450 head on 305

Post by olebmw » Fri Nov 18, 2011 2:05 pm

Is there a site that goes into detail about what is involved in installing a 450 top end on a 305?

teazer
honda305.com Member
Posts: 796
Joined: Mon Feb 08, 2010 10:32 pm
Location: Midwest US

Post by teazer » Sat Nov 26, 2011 5:01 pm

Pete Rhodes in the UK did that trick a few years ago. It's not complicated - a little welding and drilling to move all the studs and open up the crankcase mouths.

Pistons that size tend to come with larger pin and that means a different crank & Rods or at least a crank rebuild to take different rods and that's manageable with a full machine shop.

bill440cars
honda305.com Member
Posts: 282
Joined: Wed Apr 19, 2006 10:03 pm
Location: Arkansas

Post by bill440cars » Sun Oct 23, 2016 1:43 pm

I remember seeing that one on her or somewhere online. Lot of work, but quite the build. Also saw once, where someone put a Suzuki Top End on a CB77 as well. I Think it was a GS400 top end? Now that I would like to look back into both of those, I don't know where to find them.
Working Toward Being Able To Work On MY Motorcycle Projects (Trying To Get Past "Other" Projects & I Think I Am Making Progress?

User avatar
G-Man
honda305.com Member
Posts: 5641
Joined: Wed Mar 25, 2009 5:17 pm
Location: Derby, UK
Contact:

Post by G-Man » Sun Nov 06, 2016 10:01 am

Ellis Moore did the GS400 Version

http://bringatrailer.com/2011/10/05/rep ... 7-replica/


Here is a CB450 top end on a CB77

https://www.youtube.com/watch?v=7_AxDxy5FGY

G
bill440cars wrote:I remember seeing that one on her or somewhere online. Lot of work, but quite the build. Also saw once, where someone put a Suzuki Top End on a CB77 as well. I Think it was a GS400 top end? Now that I would like to look back into both of those, I don't know where to find them.
'60 C77 '60 C72 '62 C72 Dream '63 CL72
'61 CB72 '64 CB77 '65 CB160
'66 Matchless 350 '67 CL77
'67 S90 '77 CB400F

rrekr
honda305.com Member
Posts: 41
Joined: Mon Nov 07, 2005 8:44 pm
Location: Oklahoma

Post by rrekr » Sun Nov 06, 2016 1:42 pm

I believe it was Ellis Holman.

User avatar
G-Man
honda305.com Member
Posts: 5641
Joined: Wed Mar 25, 2009 5:17 pm
Location: Derby, UK
Contact:

Post by G-Man » Sun Nov 06, 2016 1:53 pm

Yep - you're right. I was thinking about an English guy who makes gearsets.

http://www.mpe07.co.uk/mpeprevcoms.html

G

rrekr wrote:I believe it was Ellis Holman.
'60 C77 '60 C72 '62 C72 Dream '63 CL72
'61 CB72 '64 CB77 '65 CB160
'66 Matchless 350 '67 CL77
'67 S90 '77 CB400F

User avatar
sixtiescycle
honda305.com Member
Posts: 270
Joined: Sat Jan 19, 2013 7:13 pm
Location: Gresham, OR

Post by sixtiescycle » Mon Nov 07, 2016 12:41 am

rrekr wrote:I believe it was Ellis Holman.
Les Barker of Vancouver, WA did much of the machine work to adapt the the GS400 top end to the CB cases. I remember talking with him at the time of the modifications for Ellis.
Dick Johnson
'61 CB92
'63 domestic CL72 Type 2
'63 CL72
'65 CL77
'66 CB77
'67 CB450D
'71 SL350
'71 XS1B

Post Reply
cron

 


 

CB-77 | CYP-77 | Road Test | Riding Log | Literature | Zen | Marketplace | VJ Survey | Links | Home