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Pitster Pro - 155 Z H-O Engine

Vital Information
Part No PP-0522
Stock Level 7 Left
Choose Options

The new 155 Z high output will drop into just about any frame using CRF 50/70 motor mounts. New close ratio transmission to make grabbing gears easy with no lag. Serious race ready engine with very strong performance stock. TB V2 heads and 184cc kits tested very well with this engine and produce big gains!

Key Features:

  • Externally removable oil filter
  • Quick access clutch cover
  • Super strong engine with the Daytona style outer ignition
  • Can start in any gear with the clutch pulled in

Kit Includes:

  • Air filter
  • Clutch cable
  • Shifter
  • Kickstarter
  • Outer rotor ignition with wiring harness, ignition coil and CDI box
  • Oil cooler

Note: Must run oil cooler. Must run to engine block or use jumper line

Note: When upgrading your Honda XR50/70, CRF50/70 to this engine you may want to use order aftermarket footpeg mounts and tank spacers. Also we suggest using an aftermarket exhaust to obtain maximum performance. All of these items are available at TBoltUSA.com

Displacement 155cc
Engine Type Air Cooled, Single-Cylinder, 2-valve, 4-stroke
Bore/Stroke 60mm x 55mm
Final Drive Chain
Fuel Delivery Nibbi 24mm
Fuel Unleaded / 91 Octane
Recommended Engine Oil 10W-40 Petroleum Based (Nonsynthetic)
Kick Start Yes
Electric Start No
Auxiliary Output No
Transmission 4-Speed manual, 4-Up
Shift-Pattern Four-speed Transmission: N-1-2-3-4
Clutch Rear 6 plate manual

Available Options:

Exhaust Port Angle:


(8 Reviews)

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We have all necessary support parts on hand.

Most orders ship same, or next business day, unless otherwise noted above.