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| $ 1125.00 |
(03-07 YZ Bolt On) |
| $ 1985.00 |
(01-02 YZ and 03-07 WR - Bolt On) |
| $ 475.00 |
Installed and Blueprinted. |
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| YZ 277F Stealth Specifications: |
| Fits 2001-2005 Yamaha YZ 250F and WR 250F |
| Bore = 79mm |
Stroke = 56.6 |
Displacement = 277cc |
| Engine Modifications Included: |
| Cylinder: |
Bore and Replate with Apticote 2000 |
| Head: |
No head work needed. |
| Crankshaft: |
Stroke, balance and true. |
| Crankcase: |
Split, inspect, and reassemble. |
| Blueprint: |
Calculate deck height, squish clearance, trapped volume, and compression ratio and list on your permanent Spec-Sheet. |
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All of our engine kits are
built using Wiseco Pistons |
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Benefits:
- 3-5 more horsepower
- More torque
- Quick revving
- No spacer plate required (looks stock)
- Fastest stock looking 250F on the track
Kit includes:
- 1 Piston kit with piston, rings, wrist pin, circlips.
- 1 Head gasket
- 1 Base Gasket
- Ign and clutch cover gaskets
- New lock washers
This kit requires you to send us:
- Nothing for bolt in kits
- Your complete CLEANED engine with NO OIL or COOLANT
Delivery: call to check availability of completed cores
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