2Bros Parts

CYLINDER HEAD SERVICE KIT KIBBLEWHITE 2014-2016 YAMAHA YZF250 80-81200

£549.16

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Comprehensive piston and valvetrain conversion kit engineered to increase durability and maintain performance under high valve lift. Replaces stock titanium valves with stainless steel components and pairs them with matched springs and retainers, alongside a forged piston designed for precise valve relief geometry and reliable top-end sealing. Features stainless steel valve conversion for increased service life, dual spring and titanium retainer set to control high-lift operation, intake and exhaust valve lift capability of 0.395 in and 0.370 in respectively, piston with convex valve reliefs matching valve dish geometry to maximise compression, top-end gasket set included for correct resealing, and supplied with piston rings, wrist pin and clips. Specifications include valve lift capability of 0.395 in (intake) and 0.370 in (exhaust), stainless steel valves with stock head diameter, titanium retainers, and kit contents include piston, rings, wrist pin, clips, top-end gasket kit, stainless valves (stock head dia.), dual valve springs, and titanium retainers. Intended use is high-lift stainless conversion for four-stroke singles. Cross-reference OEM part numbers include 56-PS001 and Kibblewhite 80-81200.

Specifications
SKU
56-PS001
Brand
Kibblewhite
Availability
In Stock (2)
General Product Group
Engine
General Product Type
Cylinder Kits
Variant Id
253230
Delivery2–4 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Kibblewhite Cylinder Head Service Kit

Upgrade your engine's performance and durability with this comprehensive cylinder head service kit. Engineered for high-lift operation, this kit replaces stock titanium valves with robust stainless steel components. It features precisely matched dual valve springs and lightweight titanium retainers to ensure reliable performance even under demanding conditions. The included forged piston boasts a convex valve relief geometry that perfectly complements the valve dish, maximizing compression for enhanced power output while ensuring reliable top-end sealing.

Key Features:

  • Stainless Steel Valves: Designed for increased service life compared to stock titanium valves, offering superior durability.
  • High-Lift Valve Control: Dual spring and titanium retainer set effectively manages high-lift operations.
  • Optimized Piston Design: Forged piston with convex valve reliefs precisely matches valve dish geometry for maximized compression.
  • Complete Sealing Solution: Includes a top-end gasket set for proper resealing of your cylinder head.
  • All Necessary Components: Supplied with piston rings, wrist pin, and clips for a complete installation.

Specifications:

  • Valve Lift Capability: 0.395 inches (Intake), 0.370 inches (Exhaust)
  • Valve Type: Stainless steel with stock head diameter
  • Retainers: Titanium
  • Kit Contents: Piston, rings, wrist pin, clips, top-end gasket kit, stainless steel valves (stock head diameter), dual valve springs, titanium retainers.
  • Intended Use: High-lift stainless steel conversion for four-stroke single-cylinder engines.
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