What is a stroker crankshaft and how does it improve performance?

A stroker crankshaft has a longer stroke than a stock crankshaft, which effectively increases the engine's displacement. This larger displacement allows the engine to burn more fuel and air, resulting in increased torque and horsepower.

Does this crankshaft come with everything needed for installation?

Yes, this stroker crankshaft is sold complete and ready for installation. It includes proven Hot Rods connecting rods, top end bearings, and crankshaft webs.

Will I need to modify my stock piston or other engine parts?

For most applications, this crankshaft is designed to work with your stock piston and does not require modifications. However, the manufacturer notes that this may vary, so it's always best to check for any specific exceptions related to your model.

Hot Rods Stroker Crankshaft 4144 - Yamaha YFM 660 R Raptor

Name: Hot Rods 01-05 Yamaha YFM 660 R Raptor 660cc Stroker Crankshaft
Brand: Hot Rods
SKU: hot-rods-hot-rods-01-05-yamaha-yfm-660-r-raptor-660cc-stroker-crankshaft-t14-728966
Price: 666.85 USD
Availability: BackOrder

Hot Rods 01-05 Yamaha YFM 660 R Raptor 660cc Stroker Crankshaft

$666.85

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Hot Rods 01-05 Yamaha YFM 660 R Raptor 660cc Stroker Crankshaft. Increases displacement, torque, and horsepower.

Key Features

Fits 2001-2005 Yamaha YFM 660 R Raptor.
Increases engine displacement, torque, and horsepower.
Sold complete with Hot Rods connecting rods, top end bearings, and crankshaft webs.
Factory assembled, trued, and balanced to OEM specifications.
Balanced to DIN Class 9 or higher for smooth operation.
Most applications do not require modifications and can be used with the stock piston.

This crankshaft is designed for the 2001-2005 Yamaha YFM 660 R Raptor. Please check manufacturer notes for any specific piston compatibility requirements.

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Product Details

Hot Rods is known for building well-made engine components, and this stroker crankshaft is a prime example of their work for your 2001-2005 Yamaha YFM 660 R Raptor. If you're looking to get more out of your 660cc engine, this crankshaft is designed to increase displacement, which in turn raises torque and horsepower. It’s a substantial upgrade for riders who want more power from their Raptor.

This crankshaft comes complete and ready to install, including proven Hot Rods connecting rods, top-end bearings, and crankshaft webs. For most applications, you won't need to make any modifications to your existing setup; it's designed to work with your stock piston unless otherwise noted. The assembly is factory-trued and balanced to OEM specifications, ensuring it meets the same standards as the original part while offering improved performance. It's also balanced to a high standard, DIN Class 9 or higher, which helps ensure smooth operation and longevity.

When you're ready to take your Raptor's performance to the next level, this stroker crankshaft is a solid option. It’s a complete package that aims to simplify the installation process while delivering a noticeable increase in power and torque. Just be sure to check the manufacturer's notes for any specific piston compatibility details for your particular model.