Namura .060 Over Bore Top End Kit for Honda TRX450R Sportrax 2004-2005 95.5mm

Namura .060 Over Bore Top End Kit for Honda TRX450R

This .060 over bore top end kit from Namura provides a cylinder and piston set for the Honda TRX450R Sportrax, increasing displacement to 95.5mm for a performance rebuild of 2004-2005 models. The kit includes a forged piston, rings, wrist pin, and gaskets for a complete top-end refresh.

Overview

The Namura .060 Over Bore Top End Kit offers a precision-bored cylinder and forged piston tailored for the Honda TRX450R, boosting engine capacity to 95.5mm. Riders restoring or rebuilding their Sportrax 450R will find this kit delivers reliable power and longevity with Namura's aftermarket quality.

Built For Performance

• .060 over bore increases displacement to 95.5mm for enhanced torque and horsepower
• Forged 4032 aluminum piston resists thermal expansion and cracking
• Molybdenum-coated rings reduce friction and improve compression
• Includes complete gasket set for leak-free assembly
• Precision-honed cylinder ensures proper ring seating

Fits These Machines

• for Honda TRX450R Sportrax (2004-2005)

On-The-Job Use

• Used for full top-end overhaul on worn TRX450R engines
• Commonly used in competitive motocross and off-road racing
• Also suitable for trail riding and recreational use where increased displacement is desired

Specs At A Glance

Good To Know

Q: Will this kit work with a stock cylinder head? A: Yes, this .060 over bore kit is designed to work with the stock cylinder head, but a minor head gasket change may be necessary for proper compression.

Q: Does the kit include a new cylinder? A: Yes, the kit includes a new cylinder with the bore already machined to .060 over size, so no additional machining is required.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.