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24mm 5.5mm Stainless Steel Stock Length Valve for Honda GX200/Clone
24mm stainless steel exhaust valve for Honda GX200, Predator 212, and clone racing engines
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24mm 5.5mm Stainless Steel Stock Length Valve for Honda GX200/Clone

Part Number: R-7
Online Price: $19.99
24mm Stainless Steel Exhaust Valve for Honda GX200, Predator & Clone Racing Engines
Availability: In Stock.

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Description

24mm Stainless Steel Exhaust Valve – Honda GX200, Clone & Modified Racing Cylinder Heads

Restore reliability and maximize exhaust flow with this 24mm Stainless Steel Exhaust Valve, designed for Honda GX200 and Honda Clone cylinder heads used on high-performance mini bikes, racing go-karts, and modified small-block engines.


Manufactured from premium stainless steel, this valve provides excellent heat resistance, durability, and long service life under the extreme temperatures generated by high-compression, high-RPM racing engines. The 24mm head diameter matches the OEM exhaust valve size found in most Honda GX200 and 196cc Clone cylinder heads, making it an excellent replacement for worn valves or performance engine rebuilds.


Whether you're rebuilding a stock cylinder head or assembling a fully ported race engine, this valve delivers the durability and precision required for competitive racing applications.


Features & Benefits

OEM 24mm Exhaust Valve Size

The 24mm valve head matches the factory exhaust valve diameter used in most Honda GX200 and 196cc Clone cylinder heads, allowing installation without requiring oversized valve seat machining.


For maximum performance, a professional multi-angle valve job is highly recommended to improve airflow, sealing, and combustion efficiency.


Premium Stainless Steel Construction

Manufactured from high-strength stainless steel for outstanding durability in demanding racing environments.

Benefits include:

  • Excellent heat resistance
  • Superior wear resistance
  • Corrosion protection
  • Improved high-RPM reliability
  • Long service life

Ideal for engines running higher compression ratios, aggressive camshafts, and elevated exhaust temperatures.


Perfect for Performance Engine Builds

Designed for:

  • Racing mini bikes
  • Competition go-karts
  • Drag racing engines
  • Oval track racing
  • Performance Honda Clone engines
  • Predator, Tillotson, Wildcat, and Ducar engine builds


Precision Manufactured

Each valve is precision-machined for accurate fitment, consistent sealing, and dependable performance in both recreational and competition engines.


Valve Specifications

Specification

Value

Valve Type

Exhaust

Head Diameter

24mm

Stem Diameter

5.5mm

Overall Length

Stock Length

Maximum Overall Length

2.575"

Valve Face Angle

45°

Margin

.035"

Seat Width

.100"

Valve Tip Length

.156"

Valve Head

Dished

Engine Compatibility

Designed for cylinder heads utilizing 5.5mm valve guides, including:

  • Honda GX200
  • 196cc Clone Engines
  • Shredder Cylinder Heads
  • Most 14cc Racing Heads
  • Aftermarket cylinder heads converted to 5.5mm valve guides

Many Predator 212, Tillotson, Wildcat, Ducar, and other Honda Clone cylinder heads originally equipped with 5mm valve guides can be converted by replacing or machining the guides to accept 5.5mm stem valves.


Installation Notes

  • Direct replacement size for most Honda GX200 and 196cc Clone exhaust valves
  • Professional valve seat inspection and multi-angle valve job recommended
  • Compatible with performance valve springs, retainers, and high-lift camshafts
  • Always verify valve-to-piston clearance during engine assembly
  • Intended for experienced engine builders and machine shops


Ideal Applications

Perfect for:

  • Modified Honda Clone Engines
  • Predator 212 Performance Builds
  • Tillotson Racing Engines
  • Wildcat Engine Builds
  • Ducar Performance Engines
  • Racing Mini Bikes
  • Competition Go-Karts
  • Open Modified Engines
  • High Compression Builds
  • High RPM Racing Applications

FAQ

Is this a stock-size exhaust valve?

Yes. The 24mm head diameter matches the factory exhaust valve size used in most Honda GX200 and 196cc Clone cylinder heads.


Does this valve require oversized valve seats?

No. Because this is the standard exhaust valve diameter, oversized seat machining is generally not required. However, a professional valve job is recommended for optimal sealing and airflow.


What valve guide size does this valve use?

This valve features a 5.5mm stem and is designed for cylinder heads equipped with 5.5mm valve guides.


Can this valve be used in Predator 212, Tillotson, Wildcat, or Ducar engines?

Yes. Many of these engines can use this valve once the cylinder head has been fitted with 5.5mm valve guides or converted from the original 5mm guides.


Is stainless steel better than the stock valve material?

Yes. Stainless steel offers superior heat resistance, durability, and wear characteristics, making it an excellent choice for high-performance and racing engines.


Is this valve suitable for racing?

Absolutely. It is designed for modified Honda Clone engines used in racing mini bikes, go-karts, drag racing, and other high-RPM performance applications.

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