99-06 BT 4in Bore 4in Stroke Cylinder Kit - Wrinkle Black w/ Highlight

Description

Inspired by our Pro Stock Drag Race engines, these updated big bore kit utilizes a Ductile Cast Iron liner wrapped in cast aluminum for optimum thermal conductivity and performance. Bolt-in kits do not require machining, rebalancing or engine removal, and include just about everything you'll need to complete the installation. The biggest cylinder bore that can be installed in a stock crankcase without machining!

Features & benefits

• Although not mandatory, we recommend adding an oil cooler to bikes ridden in warmer climates
• Complete kits include cylinders, pistons, gaskets, and instructions
• Bolts in. No machining, balancing, or splitting the crankcases
• Wrinkle black cylinders - matches stock finish
• Low friction Ductile Cast Iron liner
• 88" engines are boosted to 100"
• 10.5:1 Compression

Magnuson-Moss Warranty Act

Legally, a vehicle manufacturer cannot void the warranty on a vehicle due to an aftermarket part unless they can prove that the aftermarket part caused or contributed to the failure in the vehicle (per the Magnuson Moss Warranty Act (15 U.S.C. 2302(C)).