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Hop Up Kit, GX200 & 6.5 Chinese OHV, Stage 4
Hop Up Kit, GX200 & 6.5 Chinese OHV, Stage 4

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Our Price: $538.00

Stock Status:In Stock


Select Carburator

None (Customer to Supply Carb)
22mm Mikuni - Gas [+$94]
24mm Flat Slide Mikuni - Gas [+$193]
28mm Gas Black Round Slide [+$166]
Select Flywheel

No Flywheel
Super Light 6602 with Small Fan, GX200 [+$139]
Dyno PVL (Cast) Aluminum Flywheel [+$77]
ARC Billet Aluminum Flywheel - 6619 [+$108]
Lightweight 6600 PLV with Electronic Ignition, GX200 [+$307]

Description -
Stage 4 Hop Up Kit for GX200 & 6.5 Chinese OHV
For serious engine builders looking for great power and good reliability, we offer our Stage 4 kit. This package is similar to that of the Stage 3 kit, but adds a ported and milled head, stainless valves, billet rockers, a flat-top piston, and a great all-around cam package.

Kit Includes:
  • Ported & Milled 22cc Genuine Honda Head
  • Approximately 11:1 Compression Ratio for Use with Pump Gas
  • Stainless High-flow 27mm Intake & 24mm Exhaust
  • 37lb Springs
  • 1.2 Ratio Billet Rocker Arms
  • Chrome Moly Pushrods
  • 280-0611 Camshaft
  • Stud Kit
  • Lash Caps
  • Extra Long Billet Rod (+.100")
  • Short Skirt Flat-Top Piston for Use with Long Rod
  • Piston Rings, Wrist Pin, and Clips
  • Billet Guide Plate
  • Genuine Honda Gasket Kit (Not pictured)
  • Choice of Carbs (Or use customer supplied carb)
  • Optional Flywheels

*Note: This kit will not fit Harbor Freight 212 (Predator) engines. Please see our Predator Kits for those applications. Picture is for reference only. Actual content is based on above description and customer's selections. (In other words, the flywheel shown is optional.) Filter should be sprayed with K&N type oil, especially in dirt applications. Oil not included - click here. These kits are intended for experienced engine builders. Some clearance, fitment, or other engine building "tricks" may be needed. Aluminum flywheel REQUIRED. Stock flywheels are prone to failure and are very DANGEROUS.

Due to the head work involved in these kits, Allow 1 week to ship

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