Yamaha Raptor 660 Big Bore + Stroker Engine Rebuild Kit – 102mm | +4mm | Stage 3 Hotcam

All-in-one performance bottom end rebuild solution for your Raptor 660.
This complete engine rebuild kit fits all Yamaha Raptor 660 models and years (2001–2005) and features a 102mm big bore cylinder, forged stroker piston, and +4mm Hotrods stroker crank. Built for riders demanding power and long-term durability, the kit includes a Stage 3 Hotcam, HD clutch, and a full set of gaskets, seals, and bearings.

Whether you're rebuilding for sand, race, or trail — this setup delivers reliable, big power that’s built to last.

✅ What’s Included:

• 102mm Aftermarket Big Bore Cylinder (New)

• JE or CP Forged +4mm Stroker Piston

• High-Temp Piston Rings

• Wristpin & Circlips

• Hotrods +4mm Stroker Crank with Rod (assembled)

• Crank Bearings (one pre-installed on crank)

• Counter Balancer Bearings

• Transmission Roller Bearings

• Shift Cam Bearing

• Water Pump Bearing

• Titanium Stud Kit

• Stage 3 Hotcam

• Complete Gasket Kit

• Complete Seal Kit

• Valve Stem Seals

• Water Pump Mechanical Seal

• Cam Chain

• Heavy-Duty Clutch Kit

🔧 Fitment:

Fits all Yamaha Raptor 660 models and years (2001–2005)
Compatible with stock or performance top ends

🛡️ Warranty Information:

We stand behind every part we sell.

• Warranty covers manufacturing defects only

• Does not cover improper installation, break-in failure, or tuning issues

• Installation by a qualified mechanic is strongly recommended

• All warranty claims require parts to be returned for inspection — no exceptions

• Claims will not be accepted via phone, photos, or third-party opinions

🔁 Return Policy:

• Returns accepted within 30 days

• Must be 100% complete, unused, and in original packaging

• No returns on parts that have been installed, handled, or prepped for install

• Contact us immediately upon receiving your order if something is wrong — we’ll fix it fast