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Topic:
high comp pistons F2
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Topic: high comp pistons F2 (Read 1099 times)
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kezz32
Full Member
Posts: 24
high comp pistons F2
«
on:
April 21, 2015, 11:28:15 AM »
hi guys
are there any high comp pistons available for 750 sohc F2
thanks kezz
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Old Scrambler
My CB750K3 has been in 39 States & 5 Provinces
Old Timer
Posts: 3,807
Re: high comp pistons F2
«
Reply #1 on:
April 21, 2015, 11:53:16 AM »
None that I know of are available 'off the shelf'. Some have modified CB350 pistons. The 836-kits from Wiseco are advertised as High-Compression. The 12.5-1 CR-style pistons from Dynoman were designed for the K-head and will get you above 10-1 in an F2 at 762cc. For larger bores, the CB450 pistons have been modified.
Or.........install the 1mm longer rods from a CB900 with standard K or F2 pistons.........but you may have to machine the radii of the chambers to maintain clearances. Note; the K pistons will need to have the valve pockets machined to accept the larger F2 valves.
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Dennis in Wisconsin
'64 Triumph Cub & '74 Honda CB750 Bonneville Salt Flats AMA Record Holder (6)
CB750 Classic Bonneville Racer thread -
http://forums.sohc4.net/index.php/topic,135473.0.html
'63 CL72 Project(s)
'66 CL77 Red
'67 Triumph T100C
'73 750K3 Owned since New
'77 750F2 Cafe Project
2020 ROYAL ENFIELD Himalayan
cbr954
Hot Shot
Posts: 402
Re: high comp pistons F2
«
Reply #2 on:
April 21, 2015, 04:03:38 PM »
Dynoman will make any type of piston you want as far as bore, compression, coatings, valve reliefs, etc.
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03 CBR954RR, 72 750 chopper(970cc
F2 head), 2017 CRF450R, 2001 CR250R, 72 CB500, 79 XR250, 04 CRF50,70's soon to be rebuilt cb750 drag bike.
Badluckhonda
Full Member
Posts: 87
Re: high comp pistons F2
«
Reply #3 on:
April 21, 2015, 09:49:44 PM »
I got two 836 f2 pistons for sale. You just need the other two haha
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Topic:
high comp pistons F2