KPMI White Diamond Intake Valve - Int. Valve 1.630 O/S M8 `2017-2024 NON VVT — Harley-Davidson (2017-2024)

KPMI White Diamond intake valve for Milwaukee-Eight (M8) non-VVT engines, sized 1.630 inch oversized for ported or high-flow cylinder heads. Direct replacement for 2017-2024 Harley-Davidson naturally aspirated M8 models.

Features

• 1.630 inch oversized diameter
• White Diamond coating reduces friction
• 4.4 inch overall length
• For non-VVT M8 engines only

Specifications

• Brand: KPMI
• Manufacturer Part #: 20-21061H
• Valve Diameter: 1.630 inch oversized
• Overall Length: 4.4 in
• Weight: 0.5 lbs

Fitment

Fits 2017-2024 Harley-Davidson Milwaukee-Eight (M8) non-VVT naturally aspirated engines. Not compatible with VVT or supercharged M8 models.

Frequently Asked Questions

Will this fit my 2017-2024 M8 with VVT?

No — this valve is for non-VVT M8 engines only. VVT models require a different part number.

Is this a direct bolt-in replacement?

Yes, if your cylinder head has been ported or flows enough to support the oversized 1.630 inch diameter. Stock heads may require light valve seat work.

What's the White Diamond coating?

A proprietary friction-reducing surface treatment that lowers thermal stress and improves durability in high-flow applications.

Do I need new valve seats?

Oversized valves typically require a machinist to cut or install new valve seats. Do not force-fit into stock head bores.