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Engine, Racing, 420cc Big Block, Package 2
Engine, Racing, 420cc Big Block, Package 2


 
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Our Price: $1,219.98

Stock Status:(Out of Stock)
Part #: ENG-RAC-420-PACK2

Select Engine Type

420cc Hemi Predator
420cc OHV [+$30]
Select Carburator

GX390 Bored - Gas
34mm Round Slide Mikuni - Gas [+$105]
Crankshaft Type/Options

Stock Crankshaft
69mm Stroker Crank, cast (440cc) [+$113]
Add Fuel Tank & Pump Options

None

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Description -
 

High Performance 420 great for Kart racing or Mini-Bikes.

With almost 30hp, this engine will pull hard from 2500 to over 6000 rpm. Ready to race or just have fun with it includes.


  • 420cc Race Prepped Assembly

  • Electric Start

  • Open Element K&N Style Air Filter

  • Removal of governor

  • HD Valve Springs

  • Billet Flywheel

  • Ported & milled Head

  • 3 angle Valve Job

  • Choice of Bored 24mm Stock Appearing or 34mm Mikuni carb

  • Reinforced Rocker Arms (Non-Hemis Only)

  • Flat Top Piston

  • 260 Lift Cam

  • Billet Rod +.040 Longer

  • Dyno Tested


MOTORS SOLD FOR ORGANIZED COMPETITION PURPOSES OR EXPORT ONLY . (NOT FOR USE ON ANY EQUIPMENT, OFF ROAD, RECREATIONAL, OR EMISSIONS CONTROLLED APPLICATIONS. DOING SO IS A VIOLATION OF FEDERAL LAW) .


WARNING: TO PREVENT SERIOUS INJURY AN ALUMINUM FLYWHEEL SHOULD BE USED ON ALL MODIFIED MOTORS


Unless Stated, Engines do not come with Tank, Muffler/Exhaust, or Linkage


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

Picture for reference only, Color/style may vary

Engines are built to order and take approx 2 to 3 weeks to ship depending on season

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