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Hop Up Kit, 420 Hemi Predator, Stage 3
Hop Up Kit, 420 Hemi Predator, Stage 3

Our Price: $342.00

Stock Status:In Stock
Part #: STAGE3KIT420

Select Flywheel

No Flywheel
Add Aluminum Flywheel - Recoil Start [+$166]
Add Aluminum Flywheel - Electric Start [+$202]
Header & Exhaust Options

No Exhaust
Add Header, Kart & Mini-Bike [+$41]
Add Mud Motor Header & Muffler (390) [+$39]

Description -

As step up from the Stage 2, this kit iwakes up the 420 allowing 20+ hp


Race/Open Air Filter & Adapter

  • 24mm Race carb (Bored
  • HD Valve Springs
  • Offset Timing Key
  • 280 Lift Cam
  • Billet Rod +(.040 longer)
  • Carb and Side Cover Gaskets
  • Valve Cover Gasket
  • Optional Header/Exhaust
  • Optional Aluminum Flywheel

Picture for reference only and may show optional parts. See above description for actual content.
Header not included unless specified.

Note: Use of the Choke Bracket requires use of a stock Honda (or Chinese OHV) "Air Filter to Carb Gasket". This is not included in the kit. You can use the one that came with the motor, or can purchase one at

Filter should be sprayed with K&N type oil, especially in dirt applications. Oil not included click here

Billet Aluminum flywheel recommended. Stock flywheels, esp "Clone" are prone to failure and very DANGEROUS


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