Kibblewhite Precision Machining, Inc.

• Complete piston assembly, gasket kit, and valves to rebuild or service your bike's top end
• Cost savings are built into purchasing these components as a kit
• Designed specifically for the performance demands of MX Bikes and Quads
• Pistons are designed to maintain stock compression
• 2618 Alloy Fully CNC Machined Piston with performance skirt coating
• KPMI® High Performance Valvetrain is known to outlast OEM by twice the service life
• Lightweight Racing Spring Kit compatible with high-performance cams

• Standard or +0.001" Oversized Manganese Valve Guides, kited with seals at a savings 

• Nuts are machined from billet high tensile steel and heat-treated
• Studs are heat-treated 180,000 PSI aircraft alloy steel
• Both nut and stud have rolled threads for the strongest possible threads
• Both nut and stud are black oxide treated for enhanced corrosion resistance

*Applications OEM spec'd with 36.5mm Intake Valves and 31.0mm Exhaust Valves ONLY including Maverick/ Outlander/ Renegade • 850/ 1000cc

KPMI® is proud to introduce full CYLINDER HEAD SERVICE KITS. These kits contain all items to completely refresh and upgrade cylinder heads for popular Dirt / MX and Side x Side models with KPMI’s top quality racing valvetrain components.

• Save time and money on your next cylinder head rebuild
• One package, everything you need for factory-recommended valvetrain service
• Double your service life over OEM using KPMI® Valvetrain products
• Kitted with value-added savings

*2023-2025 CVO’s check valve lift to determine compatibility with KPMI® spring kits

Features:

• Save time and money when purchasing this kit
• One package, everything you need for a cylinder head overhaul
• Double your service life over OEM using KPMI® Valvetrain products
• All the components in this kit would cost more if bought individually

Features:

• Save time and money when purchasing this kit
• One package, everything you need for a cylinder head overhaul
• Double your service life over OEM using KPMI® Valvetrain products
• All the components in this kit would cost more if bought individually

Kit Includes:

• A Full Set of White Diamond Valves, Stock Head Dia

Yamaha® YFZ™ 450X 2008-2011
Yamaha® YFZ™ 450R & SE 2009-2025
Yamaha® WR™ 450F 2003-2015
Yamaha® YZ™ 450F 2003-2009

Since 1939 KPMI® has taken great pride in our ability to design innovative Performance improvements, valvetrain. This innovative ability has never been more apparent than with the development of the high-tech lightweight stainless steel conversion systems, the incredibly stressed and torturous environment in today's ultra high revving 4-stroke singles. Read More...

Kit Includes:

• A Full Set of S.S. Black Diamond™ Valves, Stock Head Dia. 

HUSQVARNA® FC™ 350 2016-2022
HUSQVARNA® FX™ 350 2017-2022
KTM® 350cc SX-F™ & XC-F™ 2016-2022

Since 1939, KPMI® has taken great pride in our ability to design innovative performance improvements for valvetrains. This innovative ability has never been more apparent than with the development of the high tech lightweight racing valve spring kits for the incredibly stressed and torturous environment in today's high revving 4-stroke engines. Read More...