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G-Man
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Posts: 5678
Joined: Wed Mar 25, 2009 5:17 pm
Location: Derby, UK
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Post by G-Man » Thu Mar 21, 2019 3:22 pm

Pistons.....

Image

Dream in the middle......

Image


G
'60 C77 '60 C72 '62 C72 Dream '63 CL72
'61 CB72 '64 CB77 '65 CB160
'66 Matchless 350 '67 CL77
'67 S90 '77 CB400F

LOUD MOUSE
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Posts: 7817
Joined: Mon Aug 15, 2005 8:23 am
Location: KERRVILLE, TEXAS

Post by LOUD MOUSE » Thu Mar 21, 2019 3:50 pm

Thanks "G".
I sent a pic to his eMail address. ...........................lm

G-Man wrote:Pistons.....

Image

Dream in the middle......

Image


G

e3steve
h305 Moderator
Posts: 2601
Joined: Fri Oct 31, 2003 1:38 pm
Location: Mallorca, Spain & Warsash, UK

Post by e3steve » Mon Mar 25, 2019 8:14 am

Brill (Graham, Ed); great to know this!

LOUD MOUSE
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Posts: 7817
Joined: Mon Aug 15, 2005 8:23 am
Location: KERRVILLE, TEXAS

Post by LOUD MOUSE » Mon Mar 25, 2019 8:40 am

Because the DREAM engine is listed with lower compression than the CB or CL for years people assumed the difference was caused by the piston.
Years back I "CC'd" these pistons and found as I expected the DREAM piston DOES HAVE MORE COMPRESSION and works well with the CB/CL head chambers.
As can be seen when the pistons are compared to each other the DREAM is a complete HEMI and the others are cut down around the edge and the areas for the Valve Head is Larger.
Tis a shame that feller installed the Lower Compression pistons as the compression is low to begin with and he has slowed the speed of the bike which wasn't that fast to begin with. ....................lm



e3steve wrote:Brill (Graham, Ed); great to know this!

Dr. Frankenstein
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Posts: 568
Joined: Tue Feb 02, 2010 7:11 pm
Location: Charlottesville, VA

Post by Dr. Frankenstein » Tue Mar 26, 2019 7:00 am

I have (so far) found two pairs of those pistons, and those are in Thailand for $120 and $289.
Do you have a set of these you'd be willing to part with?

LOUD MOUSE
honda305.com Member
Posts: 7817
Joined: Mon Aug 15, 2005 8:23 am
Location: KERRVILLE, TEXAS

Post by LOUD MOUSE » Tue Mar 26, 2019 7:17 am

I believe I have a set of .25 (first over) so will check and get back. ......................lm

Dr. Frankenstein wrote:I have (so far) found two pairs of those pistons, and those are in Thailand for $120 and $289.
Do you have a set of these you'd be willing to part with?

Dr. Frankenstein
honda305.com Member
Posts: 568
Joined: Tue Feb 02, 2010 7:11 pm
Location: Charlottesville, VA

Post by Dr. Frankenstein » Tue Mar 26, 2019 7:19 am

I have a Standard engine/pistons, and reboring is a little out of my price range...

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