Dynoman Performance - Austin Texas - Motorcycle Racing Parts


Shop by Model at Dynoman Performance
- CB750 SOHC
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1977-78
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1978-81
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~ All other bikes please
  choose from the menus
  below!


Shop at Dynoman Performance

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Shop for motorcycle parts at Dynoman
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(KPMI)
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Contact Dynoman Performance
- Order Information
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DP   BIG   BORE   PISTON   KITSDynoman Performance Pistons for CB550
CB500 | CB550 | CB650RINGS



DP572 Piston Kit for CB550 at Dynoman
572cc
10.5:1
60mm
STREET
Bore in Piston Kit for stock or lightly modified CB500 and CB550 motors.


Made for CB500 but can also be used on CB550 as a great street kit with 10:1 CR


Features:
- Smooth Finished Crowns
- Accumulator Grooves
- Contact Reduction Grooves
- Made in the USA
- No re-sleeving required, cylinder boring only!
- For use with stock size valves
- Lightweight 125g
- Available with CFM20 or MLS Head Gasket
~ Custom Features Information

* TECH SHEET *
DP572/sv - includes Forged Pistons, Rings, Pins, Clips, and Cometic CFM Head Gasket 
$699.95

DP572/sv - includes Forged Pistons, Rings, Pins, Clips, and Cometic
MLS Head Gasket 
$729.95
This piston kit is also available in our Performance Package!
 


DP572 Race Piston Kit for CB550 at Dynoman
572cc
11.5:1
60mm
RACE
Bore in piston kit for CB500 and CB550 modified motors.

Features:
- Accumulator Grooves
- Contact Reduction Grooves
- Smooth finished domes
- Broached pin supports
   for superior pin oiling
- High compression for racing
- Large valve pockets
- Under dome and internal
  milling for weight reduction
- Made in the USA
- Very light weight - 139g
- No re-sleeving required!
- Available with CFM20 or MLS Head Gasket
- Special order, please allow
   12 to 16 weeks
   production time

~ Custom Features Information


* TECH SHEET *

DP572/60r - includes Forged Pistons, Rings, Pins, Clips, and Cometic CFM Head Gasket 
$799.95

DP572/60r
- includes Forged Pistons, Rings, Pins, Clips, and Cometic
MLS Head Gasket 
$829.95
This piston kit is also available in our Performance Package!



DP592/psv Piston Kit for CB550 at Dynoman

DP592/psv Piston Kit for CB550 at Dynoman
592cc
10:1
61mm
STREET
Bore in piston kit for stock or lightly modified CB550 motors. Great for daily drivers!

Features:
- Accumulator Grooves
- Contact Reduction Grooves
- Smooth finished domes
- Broached pin supports
   for superior oiling
- Made in the USA
- Very light weight - 140g
- No re-sleeving required!
- For use with stock valves; oversized can be used.
- For use with stock cam; high lift cam can be used.
~ Custom Features Information
- Available with CFM20 or MLS Head Gasket

* TECH SHEET *

- Special order, please allow
   12 to 16 weeks
   production time

DP592/psv - includes Forged Pistons, Rings, Pins, Clips, and Cometic CFM Head Gasket
$799.95


DP592/psv
- includes Forged Pistons, Rings, Pins, Clips, and Cometic MLS Head Gasket
$829.95

This piston kit is also available in our Performance Package!


DP592 Piston Kit for CB550 at Dynoman




592cc
10.5:1
61mm
HOT STREET
Bore in piston kit for CB550.
Features deeper valve pockets for use with higher lift cams; recommended WebCam #58a or #58b


Features:
- Accumulator Grooves
- Contact Reduction Grooves
- Smooth finished domes
- Broached pin supports
   for superior oiling
- Large valve pockets
- Internal milling for
   weight reduction
- Made in the USA
- Very light weight - 143g
- No re-sleeving required!
- Available with CFM20 or MLS Head Gasket
~ Custom Features Information

* TECH SHEET *

DP592/61s - includes Forged Pistons, Rings, Pins, Clips, and Cometic CFM Head Gasket
$699.95

DP592/61s - includes Forged Pistons, Rings, Pins, Clips, and Cometic MLS Head Gasket
$729.95

This piston kit is also available in our Performance Package!


DP592 Race Pistons for CB550 at Dynoman

592cc
11.5:1
61mm
RACE
Bore in piston kit for CB550.
Features deep valve pockets and higher compression. for race use.


Features:
- Accumulator Grooves
- Contact Reduction Grooves
- Smooth finished domes
- Broached pin supports
   for superior pin oiling
- High compression for racing
- Large valve pockets
- Under dome and internal milling
   for extra weight reduction
- Made in the USA
- Very light weight - 144g
- No re-sleeving required!

- Available with CFM20 or MLS Head Gasket
~ Custom Features Information


* TECH SHEET *

DP592/61r - includes Forged Pistons, Rings, Pins, Clips, and Cometic CFM Head Gasket
$729.95


DP592/61r - includes Forged Pistons, Rings, Pins, Clips, and Cometic MLS Head Gasket
$759.95

This piston kit is also available in our Performance Package!


DP674 Piston Kit for CB650 at Dynoman

674cc
10.5:1
62mm
STREET
Bore in Piston Kit
for stock or lightly modified motors


For 1979-82 CB650 SOHC Honda

Features:
-
Brushed Dome with
  No Sharp Edges
- Accumulator Groove
  for Better Ring Control
- Contact Reduction Grooves
  for Less Pre-ignition
- No re-sleeving required!
- Available with CFM20 or MLS Head Gasket
- Made in the USA
- Lightweight 162g

~ Custom Features Information

* TECH SHEET

DP674 - includes Forged Pistons, Rings, Pins, Clips, and Cometic CFM Head Gasket
$699.95

DP674
- includes Forged Pistons, Rings, Pins, Clips, and Cometic MLS Head Gasket
$729.95

       

RING SETS  
NOTE: It is common for the tapered lip that came in the bottom of your cylinders from the factory to be removed when installing larger bore piston kits. If the machine shop doing your boring does not taper the bottom of the sleeves after they are bored there will be a sharp edge at the bottom in place of the factory taper. It will need to be removed to make ring installation easier. You can taper the sleeves by hand with a Dremel tool or porting tool using a small 400 grit or less sanding drum. It is also very important to wash the bores with hot soapy water to remove any sanding residue and oil them lightly when the tapering job is complete. We recommend lightweight machine oil or engine oil.

Following this procedure will greatly reduced the risk of broken rings during installation!

 

 
 
 
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