KIBBLEWHITE - 40-41480 - Cylinder Head Service Kit - '16 Kawasaki KX450F

Q: Where can I find installation instructions for this product?

General installation notes are provided on the product page where available. For detailed step-by-step instructions, refer to the manufacturer's documentation included with the product, or use the product chat for questions about difficulty, required tools, or whether professional installation is recommended.

Rather than sourcing gaskets, valves, springs, guides, and seals separately, 40-41480 packages everything a '16 Kawasaki KX450F top-end rebuild needs into one Kibblewhite kit: a complete gasket set, KPMI standard valves, a titanium valve spring kit, matching valve guides, and Viton stem seals. Guide material ranges from C630 copper-nickel-aluminum bronze to easier-reaming C674 manganese, with Black Diamond or White Diamond valve options depending on the kit.

Features

Kit includes complete top end gasket kit, full set of KPMI® standard valves, high performance titanium spring kit, complete set of valve guides, and Viton® valve stem seals
Top end gasket kit includes base gaskets, engine case gaskets, exhaust gaskets, head gaskets and necessary o-rings and washers
C630 valve guides are a blend of copper, nickel, and aluminum
C674 valve guides are a softer Manganese that are easily reamed
Black Diamond™ valves are a one pieced forged stainless steel valve that are impregranted by a special German process to improve wear properties and reduce friction
White Diamond® valves are fully CNC machined from one-piece forging of either EV8 Stainless Steel or Inconel-751 material, and are hard chromed with a 360° anode to produce the highest possible grade of a hard chrome finish

ⓘ NOTE: Includes:

ⓘ NOTE: • 2x Intake Titanium Retainers

ⓘ NOTE: • 2x Intake CrSi Valve Springs

ⓘ NOTE: • 2x Intake H.T. Steel Basewashers

ⓘ NOTE: • 2x Exhaust Titanium Retainers

ⓘ NOTE: • 2x Exhaust CrSi Valve Springs

ⓘ NOTE: • 2x Exhaust H.T. Steel Basewashers

ⓘ NOTE: • 2x Intake Standard Black Diamond™ Valves

ⓘ NOTE: • 2x Exhaust Standard Black Diamond™ Valves

ⓘ NOTE: • 2x Intake Standard C630 Valve Guides

ⓘ NOTE: • 2x Exhaust Standard C630 Valve Guides

ⓘ NOTE: • 1x Top End Gasket Kit

Specs

Application: Exhaust
Collar Material: Titanium
Spring Lift: 0,415"
Spring Seat Pressure: Intake 64 lb, Exhaust 65 lb
Units: Kit
Material: C630 Bronze
Model: Black Diamond™
Riding Style: Off-Road
Valve Seat Height: Intake 1.290", Exhaust 1.240"
Application: Intake
Spring Lift: 0.415"
Product Name: Cylinder Head Service Kit
Spring Open Pressure: Intake 169 lb, Exhaust 170 lb

Frequently Asked Questions - KIBBLEWHITE - 40-41480 - Cylinder Head Service Kit - '16 Kawasaki KX450F

General info

How do I know if this part fits my vehicle?

Check the fitment information listed on this page against your exact year, make, model, and (where applicable) trim, engine size, or configuration. If your exact vehicle isn't listed, or you're not sure, use the product chat on this page or contact our support team before ordering - we're glad to help confirm fitment.

What does it mean if a product is listed as universal fit?

Universal fit means the product is designed to work across a range of vehicles, not that it's guaranteed to fit every one. Compare the listed measurements, mounting requirements, and connector or hardware specs against your specific vehicle before ordering, since some installations may need additional hardware or minor fabrication.

Where can I find installation instructions for this product?

General installation notes are provided above where available. For detailed step-by-step instructions, refer to the manufacturer's documentation included with the product, or use the product chat on this page for questions about difficulty, required tools, or whether professional installation is recommended.

What if I have more questions about this product?

Use the product chat on this page for fitment, specs, installation, and compatibility questions, or contact our support team directly for help before you order.