Dynoman Performance - Austin Texas - Motorcycle Racing Parts


Shop by Model at Dynoman Performance
- CB750 SOHC
- CB750 F2
- CB750/900/1100F
- NT650GT HAWK
- CB500/550/650
- CB350/400F
- KZ900/1000/GPz
- ZRX1100 / 1200
- GS1000
- GS1100/1150

~ All other bikes please
  choose from the menus
  below!


Shop at Dynoman Performance

ENGINE PACKAGES
- CB750/900F/CB1100F
- CB750 SOHC
- CB750 F2
- CB550 / CB500
- KZ900 / 1000
- GS1000
- GS1100

ENGINE PARTS
- Camshafts
- Cam Sprockets
- Clutches
- Connecting Rods
- Cylinder Sleeves
- Gasket Sets
- Gaskets,
Head & Base
- Piston Kits
- Rings
  Sleeves
- Studs,
Top & Bottom
- Valves
- Valve Train
- More...

CARBURETION
- Keihin CR
- Keihin FCR
- Keihin Accessories
- Mikuni RS
- Air Filters
- Push/Pull Throttles
- Vent Filters
- Intake Manifolds
- Dynojet Jet Kits
- Pingel Petcocks
- Carb Sync Tool
- More...

IGNITION
- Dyna 2000
- Dyna S
- Dyna Coils
- Dyna Wires
- NGK Spark Plugs
- Dyna Rev Limiter
- More...

EXHAUST
- Kerker / Supertrapp
- Baffles

SUSPENSION
- Ohlins Shocks
- Progressive Shocks
- Steering Dampers

BRAKES
- EBC Brakes


Shop for motorcycle parts at Dynoman
- Barnett Clutches
- Carrillo Rods
- Cometic Gaskets
- CP Pistons
- Dyna Ignitions
- EBC Brakes
- Falicon Rods
- JE Pistons
- K&N Filters
- Keihin Carbs
- Kerker Headers
- Kibblewhite
(KPMI)
- Mikuni Carbs
- NGK Plugs
- Ohlins Shocks
- Pingel Petcocks
- Progressive Shocks
- Vesrah Gaskets
- WebCam Cams
- Wiseco Pistons


Contact Dynoman Performance
- Order Information
- Technical Sheets
- FAQ
- Customer Builds
- Contact


Dynoman Performance Custom Piston Kits
Also available: JE Pistons | Wiseco Pistons | CP Pistons
  |  Ring Sets

WE MAKE CUSTOM PISTONS: If you don't see what you're looking for below, please email us!
Send your make, model, year, plus desired bore size and compression ration, and what you will be doing with the bike (dragrace, roadrace, hot street, sidecar, naturally aspirated or blown, etc). This will help us to design the perfect piston for you.

CUSTOM OPTIONS FOR DP PISTONS          How to make a DOME MOLD          About Cylinder Bottom Taper

HONDA KAWASAKI SUZUKI YAMAHA
    CB750 SOHC
   1969-76 all, 1977-78 K

   CB750 F2
   1977-78

   CB750 DOHC
   1979-82

   CBR1000F & Big One
   1991, 1993-96

   RC51 - RVT1000
   2000-06

   CBR1100xx Blackbird
   1996-2007

   NT650GT HAWK
   1988-91

   CB500 CB550  |  CB650

    GPz550/KZ550

    GPz750/KZ750
    1980-85

    ZX7r
    1991-95

    KZ1000

    1977-80

    KZ1000 J/R
    1981-83
    GS550
    1977-82 2-Valve

    GSXr750 1988-89
    GSX750 Katana 1989-97

    GSXR750 1992-95

    GS1000
    1978-79 2-Valve

    GS1100
    1981-83 4-Valve

    GS1100G / GK
    1982-84 2-Valve
    FZ600 1986-88

    FZ750 1986-89

    FZR1000 1989-96
    YZF1000 1997-98

    FJ1100 / 1200
  CB750 SOHC 1969-76 K/F   +  1977-78 K 
DP1026/r

Dynoman 1026 race kit for CB750 SOHC
1026cc
72mm
12.5:1
FEATURES:

High compression kit for Drag and Road Racing. Available in 2 or 3 ring configuration. Many custom features available; we build them exactly the way
you want them!

Also available for 17mm pin applications
(requires custom rods).

DP Sleeves

Please email us for details on the custom piston kit!

~ Custom Features Information

*
Cylinder Bottom Taper Information*
 

DP1026

72mm Piston Kit for CB750 at Dynoman DP1026
1026cc
72mm
10.5:1

190 grams
 
FEATURES:

For the serious enthusiast and engine builder, this kit features Smooth Finished Domes, Accumulator Grooves, and Contact Reduction Grooves.

This kit requires engine case boring,
cylinder re-sleeving, and heavy duty Top End Studs.

We also recommend Carrillo Rods, and heavy duty Bottom End Studs.

Also available for 17mm pin applications
(requires custom rods).

DP 315 Cam
Racing Valve Springs
Titanium Retainers

Sleeves
also compliment this 1026cc set-up.

For 1969-78 Honda CB750 K
     1975-76 Honda CB750F

~ Custom Features Information

*Cylinder Bottom Taper Information*

Piston Kit
Pistons, Rings, Pins, Clips, & CFM Head Gasket
$549.95
 


Complete Kit
Same as above plus Sleeves and Viton RCS Base Gasket
$769.95


DP1000/71r

DP1000 Race Piston Kit for CB750 at Dynoman
1000cc
71.25mm
12.5:1

195 Grams
FEATURES:

High compression kit for maximum torque and horsepower! Flat top forged piston offers better flow characteristics as well as a design that is compatible with any combustion chamber - no more worries about piston to head intersection! Pistons also feature accumulator grooves for better ring control and smooth finished crowns.

Pistons are 71.25mm and can be used with just a clean-up hone for existing 71mm bore engines.

This kit requires engine case boring,
cylinder re-sleeving, and heavy duty Top End Studs.

We also recommend Carrillo Rods, and heavy duty Bottom End Studs.

Also available with 17mm wrist pins
(requires custom rods).

DP 315 Cam
Racing Valve Springs
Titanium Retainers

also compliment this 1000cc set-up.

For 1969-78 Honda CB750 K
     1975-76 Honda CB750F

~ Custom Features Information

*Cylinder Bottom Taper Information*

Piston Kit
Pistons, Rings, Pins, Clips, & MLS Head Gasket
$549.95



Complete Kit
Same as above plus Sleeves and Viton RCS Base Gasket
$799.95




DP1000r

DP1000r Pistons for CB750 at Dynoman

1000cc
71.25mm
10.25:1

185 grams
FEATURES:

Flat top forged piston offers better flow characteristics as well as a design that is compatible with any combustion chamber - no more worries about piston to head intersection! Pistons also feature accumulator grooves for better ring control.

Pistons are 71.25mm and can be used with just a clean-up hone for existing 71mm bore engines.

Also available for 17mm pin applications
(requires custom rods).

This kit requires engine case boring,
cylinder re-sleeving, and heavy duty Top End Studs.

We also recommend
Carrillo Rods, and heavy duty Bottom End Studs.

DP 315 Cam
Racing Valve Springs
Titanium Retainers
Sleeves
also compliment this 1000cc set-up.

For 1969-78 Honda CB750 K
     1975-76 Honda CB750F

This piston kit is also available in our
Performance Engine Package

** TECH SHEET **

~ Custom Features Information

*Cylinder Bottom Taper Information*

Piston Kit
Pistons, Rings, Pins, Clips, & CFM Head Gasket
$549.95


Complete Kit
Same as above plus Sleeves and Viton RCS Base Gasket
$769.95

 

OVER 1000cc
     CUSTOMS
 Dynoman Custom Pistons for CB750 SOHC Honda

 

Custom-designed pistons for
drag and road racing!

72 to 73.7mm bore size with compression ratios to meet your needs. Available with 17mm pins.

Other available options: lateral gas porting, contact reduction grooves, accumulator grooves, smooth finished crowns, Tuff Skirt coating, and 3D under crown milling or a complete lightening package.

Email us with your specifications for
information and a quote.
Custom Sleeves also available.

For 1969-78 Honda CB750 K
       1975-76 Honda CB750F

~ Custom Features Information

 


DP970/r 970cc
70mm
12.5:1

Details coming soon!

DP915

DP915 Piston Kit at Dynoman
 

915cc
68mm
10.5:1
FEATURES:

This is a gorgeous, full-featured forged piston with Accumulator Grooves, Contact Reduction Grooves, and Smooth Finished Domes. An excellent choice for street or strip!

Perfect for cleaning up a worn 890cc engine as well.

This kit requires engine case boring,
cylinder re-sleeving, and heavy duty Top End Studs.

We also recommend Carrillo Rods, and heavy duty Bottom End Studs.

DP 315 Cam
Racing Valve Springs
Titanium Retainers
also compliment this 915cc set-up.

For 1969-78 Honda CB750 K
       1975-76 Honda CB750F

This piston kit is also available in our
Performance Engine Package

** TECH SHEET **  

~ Custom Features Information

*Cylinder Bottom Taper Information*
Piston Kit
Pistons, Rings, Pins, Clips, & CFM Head Gasket
$579.95



Complete Kit
Same as above plus Sleeves and Viton RCS Base Gasket
$849.95

 

DP906/sohc

DP906 Piston Kit for CB750 at Dynoman
906cc
67.5mm
10.5:1

169 grams
FEATURES:

A great full-featured forged piston with Accumulator Grooves, Contact Reduction Grooves, and Smooth Finished Domes. An excellent choice for street or strip!

Perfect for cleaning up a worn 890cc engine as well.

This kit requires engine case boring,
cylinder re-sleeving, and heavy duty Top End Studs.

We also recommend Carrillo Rods, and heavy duty Bottom End Studs.

DP 315 or 117KHD Cam
Racing Valve Springs
Titanium Retainers
also compliment this 906cc set-up.

For 1969-78 Honda CB750 K
       1975-76 Honda CB750F

** TECH SHEET **

~ Custom Features Information

*Cylinder Bottom Taper Information*

Piston Kit
Pistons, Rings, Pins, Clips, & CFM Head Gasket
$599.95



Complete Kit
Same as above plus Sleeves and Viton RCS Base Gasket
$799.95


DP890/67r

890 Custom Piston Kit for CB750 SOHC at Dynoman
890cc
67mm
12.5:1

170 grams
FEATURES:

A high compression, forged racing piston featuring a Smooth finished crown, Accumulator grooves, and Contact reduction grooves.

This bore size requires cylinder re-sleeving.

We also recommend Carrillo Rods, and heavy duty  Top and Bottom End Studs.

Complete Kit includes special tapered sleeves that do not require case boring!

For 1969-78 Honda CB750 K
       1975-76 Honda CB750F

** TECH SHEET **

~ Custom Features Information

*Cylinder Bottom Taper Information*

Piston Kit
Pistons, Rings, Pins, Clips, & CFM Head Gasket
$579.95


Complete Kit
Same as above plus Sleeves and Viton RCS Base Gasket
$799.95


DP890

DP 890cc Piston Kit for CB750 SOHC at Dynoman
890cc
67mm
10.5:1

165 grams
FEATURES:

A super nice, full-featured forged piston with Accumulator Grooves, Contact Reduction Grooves, and Smooth Finished Domes. An excellent choice for street or strip!

This bore size requires cylinder re-sleeving.

We also recommend Carrillo Rods, and heavy duty  Top and Bottom End Studs.

Complete Kit includes special tapered sleeves that do not require case boring!

DP 295 or 315 Cam
Racing Valve Springs
Titanium Retainers
also compliment this 890cc set-up.

For 1969-78 Honda CB750 K
       1975-76 Honda CB750F

** TECH SHEET **

~ Custom Features Information

*Cylinder Bottom Taper Information*

Piston Kit
Pistons, Rings, Pins, Clips, & CFM Head Gasket
$579.95



Complete Kit
Same as above plus Sleeves and Viton RCS Base Gasket
$799.95


DP836 TURBO

DP836 Turbo Pistons for Honda CB750 at Dynoman 

Dynoman Ductile Iron Sleeves

 

836cc
65mm
8.5:1

152 grams

FEATURES: 

Accumulator Grooves to give blow-by gasses a place to go and create better ring control.

This kit can also be used for naturally aspirated street engines desiring stock compression.

This kit requires cylinder boring only.

Ductile Iron Sleeves and Carrillo Rods strongly recommended with this kit.  Contact us for special package pricing with rods!

We recommend using Tool Steel Wrist Pins
with this kit if running a turbo. Contact us for availability.

For 1969-78 Honda CB750 K
     1975-76 Honda CB750 F 

** TECH SHEET **

~ Custom Features Information

 

*Cylinder Bottom Taper Information*

Piston Kit:
Pistons, Rings, Pins, Clips, & MLS Head Gasket
$599.95



Complete Kit
Same as above plus Ductile Iron Sleeves and Viton RCS Base Gasket
$899.95
 



Tooled Steel Wrist Pins
set of (4)
$119.95

 


DP62/r

Dynoman 62mm Race Pistons for CB750 SOHC

 

 

62mm
760cc
12.5:1

156 grams
FEATURES:

For roadracing use
Honda CR750 style.
Legal for most Formula 750 Racing.
2-Ring piston type.
156g piston-only weight.
218g average piston/rings/pin/clips.
+1mm oversize.
Smooth finished domes,
Accumulator grooves,
Contact reduction grooves.

For 1969-78 Honda CB750 K
     1975-76 Honda CB750 F

* TECH SHEET *

~ Custom Features Information

*Cylinder Bottom Taper Information*

Piston Kit
Pistons, Rings, Pins, Clips, & CFM Head Gasket
$529.95

 


DP62/r3
Dynoman DP62/r3 Piston Kit for CB750 SOHC 
62mm
760cc
12.5:1

160 grams
 
FEATURES:

For hot street OR roadracing use
Honda CR750 style.
Legal for most Formula 750 Racing.
3-Ring piston type.
+1mm oversize.
Smooth finished domes,
Accumulator grooves,
Contact reduction grooves.

For 1969-78 Honda CB750 K
     1975-76 Honda CB750 F

* TECH SHEET *

~ Custom Features Information

*Cylinder Bottom Taper Information*
Piston Kit
Pistons, Rings, Pins, Clips, & CFM Head Gasket
$529.95
 


More CB750 SOHC Piston Kits




JE 836cc 10.5:1      #144539

JE 836cc 12:1      #149295

Wiseco 836cc 10.25:1     
#K836
 
  CB750 SOHC F2 1977-78
DP 836/65f2

836 Piston Kit for CB750 F2 at Dynoman

65mm
836cc

10.5:1

175 grams
FEATURES:

Smooth Finished Dome with No Sharp Edges,
Accumulator Groove for Better Ring Control,
Contact Reduction Grooves for Less Pre-ignition

For 1977-78 CB750F2 (black motor) 

This kit requires cylinder boring only.

ABOUT THE DYNOMAN F2 PISTON KITS:
As the 77-78 Honda 750 F2 has a 18% larger combustion chamber to compensate for the larger valves, through the years many people have installed the standard 836cc (ex: Wiseco K836) kits for the 69-76 engines only to discover that the compression was too low to give them the extra power that they were after.

Dynoman offers our custom 836, 915, and 970cc piston kits for the F2. They have the correct dome to raise the compression to a true 10.5:1 and 11.5:1 respectively.

These pistons are state of the art diamond cut on CNC machines in the USA from 2618 aluminum forgings. This is the same alloy used in many pro stock pistons. This process makes them lighter than some of the cast pistons used in the 70s, but much stronger. They also come with a brushed dome to smooth any sharp edges.

The pistons feature large valve pockets for the 31 and 34mm valves used in the F2 engines. They also have contact reduction grooves above the top ring for pre-ignition control, and accumulator grooves below the top ring for better ring control.

The DP836/65f2 kit is the same bore size as the standard Wiseco K836cc kit, so they are a drop in for any F2 with the standard K836 Wiseco kit already installed.

*TECH SHEET* 

~ Custom Features Information

*Cylinder Bottom Taper Information*


Piston Kit
Pistons, Rings, Pins, Clips, & CFM Head Gasket
$599.95





DP 915/68f2

915 Piston Kit for CB750 F2 at Dynoman

68mm
915cc

10.5:1

161 grams
FEATURES:

This piston kit is loaded with upgrades!!
- Milled Under Crown for
   Weight Reduction,
- Late
ral Gas Ports to Assist
   in Ring Seal,
- Brushed Dome with No Sharp Edges,
- Accumulator Groove for
   Better Ring Control,
- Contact Reduction Grooves
   for Less Pre-ignition.

This piston kit is a true 68mm size!

This kit requires engine case boring, cylinder re-sleeving, and heavy duty top end studs
.

We also recommend Carrillo Rods, and heavy duty Bottom End Studs.

DP 117KHD Cam
Racing Valve Springs
Titanium Retainers
also compliment this 915cc set-up!

For 1977-78 CB750F2 (black motor) 


Piston Kit
Pistons, Rings, Pins, Clips, & CFM Head Gasket
$649.95



Complete Kit
Same as above plus Sleeves and Viton RCS Base Gasket
$899.95 

 

DP970/70f2

Dynoman 970 Pistons for CB750 F2


Dynoman 970cc Piston kit for CB750 F2


970cc
70mm
11.5:1

187 grams
Feature Packed Hot Street and Racing Pistons!
Smooth Finished Crowns, Accumulator Grooves
Contact Reduction Grooves, Under Crown Milling for weight reduction.

This kit requires engine case boring, cylinder re-sleeving, and heavy duty top end studs.

Kit includes (4) Pistons, (4) Ring sets, (4) Pins, (8) Wrist Pin Clips, and Cometic CFM20 Head Gasket.

For 1977-78 CB750F2 (black motor)

*TECH SHEET*

Accessories:
- Carrillo Rods
- MLS Head Gasket
- Viton Coated Base Gasket



~ Custom Features Information

*Cylinder Bottom Taper Information*



Piston Kit
Pistons, Rings, Pins, Clips, & CFM Head Gasket
$499.95




Complete Kit
Same as above plus Sleeves and Viton RCS Base Gasket
$739.95 


  CB750 DOHC   1979-82
DP835/dohc
Dynoman DP835 Pistons for CB750 DOHC

Dynoman DP835 Pistons for CB750 DOHC

Dynoman DP835 Pistons for CB750 DOHC

835cc
10.5:1
65.5mm     835cc
Feature Packed Hot Street and Racing Pistons!

Smooth Finished Crowns - no hot spots
Accumulator Grooves
- better ring control
Contact Reduction Grooves
- less pre-ignition
Actual 10.5:1 Compression Ratio - more power!
(other manufacturers claim 10.25 but
are actually lower)


Bore-in with stock sleeves!
Hone in (clean up) for 823cc kits
!

Made in the USA!
Actual weight just 167 grams

Kit includes (4) Pistons, (4) Ring sets, (4) Pins, (8) Wrist Pin Clips, and Cometic CFM20 Head Gasket.


For 1979-82 CB750F/K/C

 


      *TECH SHEET*

~ Custom Features Information


*Cylinder Bottom Taper Information*

$524.95


 
     CB500/4
DP 572/sv
DP 572/sv Piston Kit for CB500 Honda

572cc

10.25:1
60mm   572cc
10.25:1 Flat Top Design.
Bore in, no re-sleeving required.
Features Smooth Finished Domes, Accumulator Grooves, and Contact Reduction Grooves. Lightest, strongest USA-made forgings, only 133g.
Bore-in with stock sleeves!

Includes Pistons, Rings, Pins, Clips &
choice of Cometic CFM or MLS Head Gasket.

Can also be used on CB550, 10:1 C.R. as a great street kit.

More information >>
More information

**TECH SHEET**

~ Custom Features Information

*Cylinder Bottom Taper Information*

Order & More Info HERE

DP 572/60r
DP572 Piston Kit for CB500 at Dynoman
572cc

11.5:1
60mm     572cc
11.5:1 Hi Compression Design.
Bore in piston kit for CB500 and CB550 modified motors.
Bore-in with stock sleeves!

Includes Pistons, Rings, Pins, Clips &
choice of Cometic CFM or MLS Head Gasket.

Can also be used on CB550!

More information >>
More information

**TECH SHEET**

~ Custom Features Information

*Cylinder Bottom Taper Information*

Order & More Info HERE
   CB550/4
DP592
DP572

DP592/61r

572cc
592cc

10.25:1
10.5:1
11.5:1

More information >>
More information

* TECH SHEET *

We have a large variety of CB550 piston configurations to fit your needs! See them all HERE

~ Custom Features Information

*Cylinder Bottom Taper Information*

Order & More Info HERE
   CB650
DP 674
Dynoman DP674 Piston Kit for CB650

Dynoman DP674 Piston Kit for CB650




674cc
62mm


+2mm
10.5:1
Brushed Dome with No Sharp Edges,
Accumulator Groove for Better Ring Control,
Contact Reduction Grooves for Less Pre-ignition
.
Bore-in with stock sleeves!

- Kit Includes: (4)Pistons, (4)Ring sets,
   (4)Pins, (8)Clips, and
   Cometic CFM or MLS Head Gasket
- 2618 T6 High Tensile
   Forged Aluminum Pistons
- Pistons & Pins Made in the USA
- Ring sets are the finest Japanese-made

- Bore in kit, no re-sleeving required.
- Weight: 162g

For 1979-82 CB650 Honda SOHC

More information >>
More information

~ Custom Features Information

*Cylinder Bottom Taper Information*

* TECH SHEET *

Order & More
Info
HERE
  RC51
DP 51/1



101mm
+1mm

12.3:1
2000-06 HONDA RC51 (RVT1000R)

•Machined from 2618 T6 high
tensile forged aluminum

•Designed specifically for extreme applications;
professional installation recommended

•Custom Pistons, rings, pins, clips included

~ Custom Features Information

  

Please email us for price and availability

DP 51/2
Dynoman Piston Kit for RC51 Honda

Dynoman Piston Kit for RC51 Honda

Dynoman Piston Kit for RC51 Honda
102mm
+2mm
12.3:1

407 grams
2000-06 HONDA RC51 (RVT1000R)

Features FSR Style Piston Design, Lateral Gas Porting, Broached Pin Oilers, Accumulator Grooves, Smooth Finished Crowns, and Tuff Skirt Coating.

- Machined from 2618 T6 high tensile forged aluminum

- Designed specifically for racing applications;
  professional installation recommended.

- Kit includes (2) Pistons, (2) Ring sets, (2) Wrist Pins, (4) Clips, and Cometic C8765 MLS Head Gaskets

** TECH SHEET **

~ Custom Features Information

*Cylinder Bottom Taper Information*

 - Please allow 1-3 weeks production time
  on this custom piston kit.

$499.95
    NT650GT HAWK
DP663

DP663 Piston Kit for NT650 Honda

DP663 Piston Kit for NT650 Honda



+1mm
80mm
12:1 CR
1988-91 NT650GT Hawk

- Kit includes (2) Pistons, (2) Ring sets,
   (2) Wrist Pins, (4) Clips, and
   Cometic Head Gasket set #C8207
- Features Accumulator Grooves

-
275g weight
Bore-in with stock sleeves!

Please allow 2 to 3 weeks production time.

**TECH SHEET**

~ Custom Features Information

*Cylinder Bottom Taper Information*

$399.95 
     1991, 1993-96 CBR1000F     &    CBR1000 BIG ONE
DP1049/cbr

DP1049/cbr Piston Kit for CBR1000F at Dynoman



+2mm
1049cc
79mm
12:1
Kit includes (4) Pistons, (4) Ring sets, (4) Pins, (8) Wrist Pin Clips, and C8008 MLS .010" Head Gasket 

217 gram weight

Cylinder boring only (sleeving not required)

Custom Features:
- Smooth Finished Crowns
- Accumulator Grooves
- Contact Reduction Grooves

~ Custom Features Information


*Cylinder Bottom Taper Information*



$649.95

 
   1996-2007 CBR1100XX Blackbird
DP1195xx

DP1195xx for Blackbird CBR1100xx at Dynoman
81mm
+2mm
11:1
Kit includes (4) Pistons, (4) Ring sets, (4) Pins,
(8) Wrist Pin Clips, and C8499 MLS Head Gasket 

239 gram weight

Cylinder boring only (sleeving not required)

Custom Features:
- Smooth Finished Crowns
- Accumulator Grooves

~ Custom Features Information

*Cylinder Bottom Taper Information*



$679.95
   GPz550 / KZ550
DP615z

DP615z Piston Kit for GPz by Dynoman

DP615z Piston Kit for GPz by Dynoman

DP615z Piston Kit for GPz by Dynoman



61mm
615cc
12:1 CR 
Kawasaki GPZ550 (1982 - 1985)
Kawasaki KZ550 (1980 - 1983)


- Kit includes:
  (4) Pistons,
  (4) Ring sets,
  (4) Wrist Pins,
  (8) Wrist Pin Clips
   CFM20 Head Gasket

- Features Accumulator Grooves
- Lateral Gas Porting available
(not included)
- 148g weight
- Bore-in with stock sleeves!

Please allow 2 to 3 weeks
production time for this custom kit!


**TECH SHEET **

~ Custom Features Information

*Cylinder Bottom Taper Information*


 
$629.95 
     KZ / GPz750
DP67/gpz

Custom Piston Kit for GPZ750 and KZ750 at Dynoman
67mm
10.25:1
Fits:
Kawasaki GPz750 1983-85
Kawasaki KZ750 1980-83

- Kit includes:
  (4) Pistons,
  (4) Ring sets,
  (4) Wrist Pins,
  (8) Wrist Pin Clips
   CFM20 Head Gasket



Please allow 2 to 3 weeks
production time for this custom kit!



$629.95
   KZ1000
DP 1200

DP1200
DP1200
DP1200

1197cc
76mm

13.5:1

For KZ1000 thru 1980

Kit includes:
(4) Pistons, (4) Ring Sets,
(4) Piston Pins, (8) Retainer Clips,
and Copper Head Gasket

Features lateral gas porting, double pin oilers, and accumulator grooves.

~ Custom Features Information

*Cylinder Bottom Taper Information*

DP 1200   DP1200

Sleeves available separately

* TECH SHEET *

$649.95
Pistons, Rings, Pins, Clips, and Copper
Head Gasket.

 


DP 1200 turbo

Dynoman 1200cc DP1200 Turbo Piston Kit for KZ1000
1200cc
76mm

8.5:1
For KZ1000 thru 1980 - TURBO

Kit includes:
(4) Pistons, (4) Ring Sets,
(4) Piston Pins, (8) Retainer Clips,
and MLS Head Gasket

Features Accumulator Grooves
and Smooth Finished Crowns.
229 grams

~ Custom Features Information

*Cylinder Bottom Taper Information*

Sleeves available separately

* TECH SHEET *

$649.95



DP 1075 turbo

Dynoman 1075cc Turbo Pistons for KZ1000




1075cc
72mm

8.5:1 

For KZ1000 thru 1980 - TURBO

Kit includes:
(4) Pistons, (4) Ring Sets,
(4) Piston Pins, (8) Retainer Clips,
and MLS or Copper Head Gasket

Features Accumulator Grooves
and Smooth Finished Crowns.
195 grams
 

Optional extras:
TUFF Skirt Coating, Lateral Gas Ports
~ Custom Features Information

*Cylinder Bottom Taper Information*

Sleeves available separately

**TECH SHEET**

 
$649.95

 
     KZ1000 J & R
DP 75/J

Dynoman Pistons for KZ1000J

Dynoman Pistons for KZ1000J

Dynoman Pistons for KZ1000J


1170cc
75mm
custom compression ratio
For 1981-83 KZ1000J and KZ1000R

Kit Includes:
(4) Pistons, (4) Ring Sets,
(4) Piston Pins, (8) Retainer Clips,
and CFM Head Gasket

Features Accumulator Grooves,
Smooth Finished Crowns, and
Under Dome Lightening

~ Custom Features Information

*Cylinder Bottom Taper Information*

230 grams
Re-sleeving Required


$699.95
Pistons, Rings, Pins, Clips, and CFM20 Head Gasket

      ZX-7R
DP748/zxr

DP748/zxr Piston Kit for ZX7r at Dynoman




748cc
71mm

13:1
For 1991-95 ZX-7r, ZX750, ZX750r
ZX750, ZX750R, ZX7 1991-95

Kit Includes:
(4) Pistons, (4) Ring Sets,
(4) Piston Pins, (8) Retainer Clips,
and C8386 MLS Head Gasket

Features Accumulator Grooves, and
Smooth Finished Crowns
~ Custom Features Information

*Cylinder Bottom Taper Information*



$689.95
Pistons, Rings, Pins, Clips, and MLS Head Gasket

 

DP 791/zxr
Dynoman DP791/zxr Pistons for Kawasaki ZX-7r


Shown below with optional Skirt Coating:
Dynoman DP791/zxr Pistons for Kawasaki ZX-7r


791cc
73mm

13:1
For 1991-95 ZX-7r, ZX750, ZX750r

Kit Includes:
(4) Pistons, (4) Ring Sets,
(4) Piston Pins, (8) Retainer Clips,
and Custom MLS Head Gasket

Features Accumulator Grooves, and
Smooth Finished Crowns.

Available with optional Skirt Coating!

~ Custom Features Information

*Cylinder Bottom Taper Information*



$689.95

Pistons, Rings, Pins, Clips, and MLS Head Gasket
   GS1100  4-valve 1980-83
DP 1260

Dynoman 1260 Piston Kit for GS1100

1260cc
78mm

13.5:1

For 1980-83 Suzuki GS1100 4-valve

Kit includes:
(4)
Pistons, (4) Ring Sets,
(4) Piston Pins, (8) Retainer Clips,
and Copper Head Gasket

Features accumulator grooves.

Weight: 225 Grams

~ Custom Features

*Cylinder Bottom Taper Information*

* TECH SHEET *

$589.95
Pistons, Rings, Pins, Clips, and Copper
Head Gasket.

 


DP 1198/GS 

Suzuki GS1100 Piston Kit at Dynoman Performance
1198cc
76mm

13.5:1

 
For 1980-83 Suzuki GS1100 4-valve

Kit includes:
(4)
Pistons, (4) Ring Sets,
(4) Piston Pins, (8) Retainer Clips,
and Copper Head Gasket

Features accumulator grooves.

Weight: 235 Grams

~ Custom Features

*Cylinder Bottom Taper Information*

 

 
$589.95


Pistons, Rings, Pins, Clips, and Copper Head Gasket

 

 
DP 1170
Dynoman Piston Kit DP1170 for GS1100 Suzuki








1170cc
12:1
75mm
2.952"
For 1980-83 Suzuki GS1100 4-valve

Fully customized with Lateral Gas Porting, Accumulator Grooves, Smooth Finished Domes, and Contact Reduction Grooves.
~ Custom Features Information

Pistons are also available without all of the extras. Email us for info.


Great for hot street riding or roadracing!

Weight: 230 grams

Kit includes:
(4)
Pistons, (4) Ring Sets,
(4) Piston Pins, (8) Retainer Clips,
and MLS Head Gasket

*Cylinder Bottom Taper Information*

* TECH SHEET *

$649.95

  GS1100 G/GK    2-valve
DP GK1135

Dynoman DP GK1135 Piston Kit









 
1135cc
 74mm
10.25:1
For 1982-84 Suzuki GS1100 G & GK (2-valve engines) 

Featuring smooth finished domes
and accumulator grooves.
~ Custom Features Information

Kit includes:
(4)
Pistons, (4) Ring Sets,
(4) Piston Pins, (8) Retainer Clips,
and CFM20 Head Gasket

Weight = 230g

Custom forged piston made in the USA!

*Cylinder Bottom Taper Information*

* TECH SHEET *

$674.95

 
  GS1000

DP 73/5GS

DP73/5GS Custom Pistons for GS1000 at Dynoman

1100cc
73.5mm

+3.5mm

12:1

For 1978-81 GS1000 2-valve

Kit includes
(4)
Pistons, (4) Ring Sets, (4) Piston Pins, (8) Retainer Clips, CFM Head Gasket

Featuring Lateral Gas Porting, Smooth Finished Crowns, and Accumulator Grooves.
~ Custom Features Information

Weight: 241g

*Cylinder Bottom Taper Information*

* TECH SHEET *


$599.95

 

 


DP 78/GS

DP78 Piston Kit for GS1000 at Dynoman 

 

 

 

 

 

 

1238cc
78mm
+8mm
12:1
For 1978-81 GS1000 2-valve
and GS1100 2-valve

Kit includes:
(4)
Pistons, (4) Ring Sets, (4) Piston Pins,
(8) Retainer Clips, Cometic Copper Head Gasket, and Cometic Rubber Coated Steel Base Gasket

Features:
~ Lateral Gas Porting
~ Smooth Finished Domes
~ Accumulator Grooves
~ Custom Features Information

Weight: 273g

Sleeves also available!

* TECH SHEET *

*Cylinder Bottom Taper Information*

ALSO AVAILABLE:
79.5mm Custom Piston sets

$699.95

 

 

   GSXr750   /   KATANA 750
DP 771/gsxr 

DP771 for GSXr750 at Dynoman

771cc
74mm
13:1 
Fits:
1988-89 GSXr750
1989-97 Katana 750


Kit Includes:


(4) Pistons, (4) Ring Sets, (4) Piston Pins,
(8) Retainer Clips, and MLS Head Gasket

Features:
~ Smooth Finished Crowns
~ Accumulator Grooves
~ Contact Reduction Grooves

Weight: 204g


~ Custom Features Information

*Cylinder Bottom Taper Information*




- Please allow 1-3 weeks production time
  on this custom piston kit.


$699.95 



  GSXr750  1992-95
DP771/gsxr92

DP771 GSXr750 Piston Kit at Dynoman
771cc
71mm
11.8:1
Fits:
1992-95 GSXr750 (water cooled)

Kit Includes:

(4) Pistons, (4) Ring Sets, (4) Piston Pins,
(8) Retainer Clips, and MLS Head Gasket

Features:
~ Smooth Finished Crowns
~ Accumulator Grooves
~ TV Tulip

Weight:181g


~ Custom Features Information

*Cylinder Bottom Taper Information*


- Please allow 1-3 weeks production time
  on this custom piston kit.


$699.95 



  GS550   1977-82
DP 630/GS

Suzuki GS550 Big Bore Piston Kit at Dynoman 630cc







630cc
60mm
10.25:1
For 1977-82 GS550 Suzuki
2-Valve engines

Kit includes:
(4)
Pistons, (4) Ring Sets, (4) Piston Pins,
(8) Retainer Clips, and Cometic CFM20 Head Gasket


Features:
~ Smooth Finished Crowns
~ Accumulator Grooves

Weight: 171g

~ Custom Features Information

*Cylinder Bottom Taper Information*


$649.95


Yamaha     YAMAHA  FZ600
DP652/fz

Dynoman Piston Kit for FZ600



652cc
60mm
10.25:1
1986-88 FZ600 Yamaha

Kit includes:
(4)
Pistons, (4) Ring Sets, (4) Piston Pins,
(8) Retainer Clips, and Cometic CFM20 Head Gasket


$629.95



Yamaha    YAMAHA FZ750   1986-89
DP69/fz

Dynoman DP69/fz Piston Kit for FZ750




+1mm
oversize
12:1 CR 
Kit includes:
(4)
Pistons, (4) Ring Sets,
(4) Piston Pins, (8) Retainer Clips


Cylinder Boring Required.
Uses factory OE head gasket.


Features:
~ Accumulator Grooves
~ Contact Reduction Grooves
~ Smooth Finished Crowns

Weight: 170g


$599.95 


Yamaha   YAMAHA   FZR1000  1989-96 & YZF1000 1997-98
DP1070/fzr 

1070cc Piston Kit for FZR1000 at Dynoman






1070cc
78mm
12:1 
Piston Kit includes:
(4)
Pistons, (4) Ring Sets, (4) Piston Pins,
(8) Retainer Clips, Cometic MLS Head Gasket



Complete Kit includes:
(4) Pistons, (4) Ring Sets, (4) Piston Pins,
(8) Retainer Clips, Cometic C8388 MLS Head Gasket,
C8388 RCS Base Gasket, and Sleeves

205g forged piston weight

~ Custom Features Information

Cylinder Re-Sleeving Required
Sleeves available separately!

* TECH SHEET *

*Cylinder Bottom Taper Information*


 
PISTON KIT
$599.95




COMPLETE KIT
$899.95

 
Yamaha  YAMAHA FJ1100 / 1200
DP 1188

DP1188 Piston kit for FJ1100 FJ1200


DP1188 Piston Kit for FJ1100 FJ1200
1188cc
77mm

10.25:1
For FJ1100  and FJ1200br />
Fully customized with Lateral Gas Porting, Accumulator Grooves, Smooth Finished Domes, and Contact Reduction Grooves
~ Custom Features Information

Great for hot street riding!

Kit includes:
(4)
Pistons, (4) Ring Sets,
(4) Piston Pins, (8) Retainer Clips, and CFM20 Head Gasket


*Cylinder Bottom Taper Information*

* TECH SHEET *

$669.95

Dynoman Rings
Replacement Ring Sets

Custom Piston Options at Dynoman

Available DP Custom Piston Options:

ACCUMULATOR GROOVES An accumulator groove is machined into the land between the top and second ring. It provides additional volume where residual combustion gases that have "blown by" the top ring can collect. This additional volume helps to reduce pressure between the top & second ring, thus aiding in top ring seal and minimizing ring flutter.
LATERAL GAS PORTING This process mills slots into the top of the top ring groove and provides a pathway for combustion pressure to get behind the top ring. This process helps to increase ring seal.
SMOOTH FINISHED DOMES Decreases hot spots
CONTACT REDUCTION GROOVES The purpose of machining these grooves is to reduce the amount of contact area against the cylinder wall when the piston “rocks over”. Contact reduction also serves to disrupt the flame travel into the crevice area thus helping to reduce detonation.
3D UNDER CROWN MILLING The Under Crown machining process allows for uniform deck thickness, therefore creating a lighter and more durable piston.
FULL LIGHTENING PACKAGE For maximum weight reduction
TUFF SKIRT COATING JE Pistons’ trademark coating that is a lubricating, anti-friction / anti-wear coating applied to the piston skirt only. Unlike our standard Skirt Coating, Tuff Skirt will not wear and is designed to withstand many different types of endurance applications, similar to those commonly found in NASCAR. Buildup is .0005” per surface and finished diameter of skirt should include the coating buildup.
THERMAL CROWN BARRIER The thermal barrier crown coating is applied to the top of the piston and is designed to reflect heat into the combustion chamber, thereby increasing exhaust gas velocity and greatly improving scavenging potential. The .0015” thick coating can also assist in extending piston life by decreasing the rate of thermal transfer.

*Some features add production time to build.

How to make a DOME MOLD

ABOUT CYLINDER BOTTOM TAPER
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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