TB Parts 143cc Big Bore Kit (incl. Race Head V2, & Intake Manifold Kit)

Fits 2017-2023 Kawasaki Z125 Pro

Requires a Fuel Controller & A/F Monitor (SOLD SEPARATELY) for Proper fueling.

TBW9175

 This complete kit comes with everything you need for an easy installation.

Includes:
- 60mm Ceramic coated all aluminum cylinder (no steel sleeve)
- Lightweight high compression domed 60mm piston with rings, pin, & clips
(will safely run on pump gas, 90-93 octane)
- Head gasket kit – includes the cylinder head o-ring set
and an exhaust gasket
- Forged anodized aluminum roller rockers
- Huge 30mm intake and 24.5mm exhaust valves
- Stainless Steel Valves (21-4N material)
- 27mm intake port, 23mm exhaust port
- Race Camshaft V2-1
- Cam Sprocket
- Port matched to the Race Head V2
- Enlarged 26mm port on throttle body side to work better with bored throttle bodies
(also works well with stock throttle body)
- a port matched heat stop to prevent heat transfer to the intake
(cannot run a heat stop with the stock intake manifold and some aftermarket head spacers)
- All mounting hardware
- A heat sensor extension harness so it can be relocated
to the tappet or cam cover.


** Kit should be installed by a certified mechanic to ensure proper function.
Improper installation could result in catastrophic engine failure.

TB Parts V2 Race Head Only with V2-2 Camshaft

pn:  TBW9255

Fits 2017-2023 Kawasaki Z125 Pro

*** This kit does NOT include the piston ***

For the Z125 you will also need a TB Parts TBW0645 cam sprocket (sold separately) 
and a TB Parts Intake Manifold TBW1224 (sold separately)

Includes:
- V2 Race Cylinder Head
- V2-2 Camshaft
- Forged roller rockets
- 21-4N Stainless steel Valves
- 30mm intake valve, 24.5mm exhaust valve
- 27mm intake port, 23mm exhaust port
- Valves installed
- High Lift Heavy Duty Valve springs

** Kit should be installed by a certified mechanic to ensure proper function.
Improper installation could result in catastrophic engine failure.

.

TB Parts 165cc Big Bore Kit (incl. Race Head V2, & Intake Manifold Kit)

Fits 2017-2023 Kawasaki Z125 Pro

Requires a Fuel Controller & A/F Monitor (SOLD SEPARATELY) for Proper fueling.

TBW9177

 This complete kit comes with everything you need for an easy installation.

Includes:
- 64mm Ceramic coated all aluminum cylinder (no steel sleeve)
- Lightweight high compression domed 64mm piston with rings, pin, & clips
(will safely run on pump gas, 90-93 octane)
- Head gasket kit – includes the cylinder head o-ring set
and an exhaust gasket
- Forged anodized aluminum roller rockers
- Huge 30mm intake and 24.5mm exhaust valves
- Stainless Steel Valves (21-4N material)
- 27mm intake port, 23mm exhaust port
- Race Camshaft V2-2
- Cam Sprocket
- Port matched to the Race Head V2
- Enlarged 26mm port on throttle body side to work better with bored throttle bodies
(also works well with stock throttle body)
- a port matched heat stop to prevent heat transfer to the intake
(cannot run a heat stop with the stock intake manifold and some aftermarket head spacers)
- All mounting hardware
- A heat sensor extension harness so it can be relocated
to the tappet or cam cover.


** Very Important: Installation requires Engine Disassembly and Case Boring.
Kit should be installed by a certified mechanic to ensure proper function.
Improper installation could result in catastrophic engine failure.

TB Parts 60mm V2 High Compression Forged Piston

pn:  TBW1579

Fits 2017-2023 Kawasaki Z125 Pro 

Includes:
- Piston
- Wrist Pin
- Ring Set  

Compression ratio on this piston is:
- 11.2:1 – 143cc bore kit combined with the V2 Race Head
- 12.09:1 – 143cc bore kit combined with the V2 Race Head and our Stroker Crank

** Kit should be installed by a certified mechanic to ensure proper function.
Improper installation could result in catastrophic engine failure.

.

TB Parts 178cc Big Bore Kit (incl. Race Head V2, & Intake Manifold Kit)

Fits 2017-2023 Kawasaki Z125 Pro

Requires a Fuel Controller & A/F Monitor (SOLD SEPARATELY) for Proper fueling.

TBW9178

 This complete kit comes with everything you need for an easy installation.

Includes:
- 67mm Ceramic coated all aluminum cylinder (no steel sleeve)
- Lightweight high compression domed 67mm piston with rings, pin, & clips
(will safely run on pump gas, 90-93 octane)
- Head gasket kit – includes the cylinder head o-ring set
and an exhaust gasket
- Forged anodized aluminum roller rockers
- Huge 30mm intake and 24.5mm exhaust valves
- Stainless Steel Valves (21-4N material)
- 27mm intake port, 23mm exhaust port
- Race Camshaft V2-2
- Cam Sprocket
- Port matched to the Race Head V2
- Enlarged 26mm port on throttle body side to work better with bored throttle bodies
(also works well with stock throttle body)
- a port matched heat stop to prevent heat transfer to the intake
(cannot run a heat stop with the stock intake manifold and some aftermarket head spacers)
- All mounting hardware
- A heat sensor extension harness so it can be relocated
to the tappet or cam cover.


** Very Important: Installation requires Engine Disassembly and Case Boring.
Kit should be installed by a certified mechanic to ensure proper function.
Improper installation could result in catastrophic engine failure.