KPMI Black Diamond Intake Valve - HD Shovelhead 1978-1983 — Harley-Davidson Electra Glide, Super Glide, Low Rider (1970-1984)

KPMI Black Diamond intake valve for Harley Shovelhead 1978-1983, crafted from stainless steel and hardened using a proprietary German impregnation process. Engineered for superior wear resistance, reduced friction, and corrosion protection compared to chrome or nickel plating.

Features

• Black Diamond stainless steel construction
• German impregnation process to .002" depth
• One-piece forging design
• Excellent flow characteristics
• Light and strong construction

Specifications

• Brand: KPMI
• Manufacturer Part #: 20-4194
• Length: 3.5 in
• Width: 5.7 in
• Height: 2.05 in
• Weight: 0.18 lbs

Fitment

Fits Harley-Davidson Shovelhead models 1978 through 1983.

Frequently Asked Questions

What is the Black Diamond process?

A proprietary German impregnation that hardens stainless steel to .002" depth, reducing friction and wear better than chrome or nickel plating.

Will this fit my 1977 or earlier Shovelhead?

This part is engineered for 1978-1983 Shovelheads. Earlier or later models may require different valve specifications.

Are these intake or exhaust valves?

These are intake valves. Order separately for exhaust valve replacements.

Do I need to replace both intake valves?

It's recommended to replace both intake valves at the same time for balanced performance and longevity.