KPMI BEEHIVE VALVE SPRING KIT .550 LIFT M8`17-24 NON VVT - .550 Lift M8`2017-20… — Harley-Davidson (2017-2024)

KPMI Beehive valve spring kit for Milwaukee-Eight (M8) engines in 2017-2024 Harley-Davidson models without VVT. Rated for .550 in. of lift, these springs handle high-RPM cam profiles without valve float or spring bind.

Features

• Beehive spring design
• Rated for .550 in. lift
• Compatible with non-VVT M8 engines
• High-RPM stability

Specifications

• Brand: KPMI
• Manufacturer Part #: 20-21215
• Lift Rating: .550 in.
• Length: 9 in
• Width: 7 in
• Height: 2 in
• Weight: 1.5 lbs

Fitment

Fits Milwaukee-Eight (M8) engines in 2017-2024 Harley-Davidson models without VVT. Will not fit VVT-equipped M8 engines or earlier Twin Cam models.

Frequently Asked Questions

Will this fit my 2017-2024 Harley with M8 and VVT?

No — this kit is for non-VVT M8 engines only. VVT-equipped models require a different spring kit.

What lift rating are these springs rated for?

These Beehive springs are rated for .550 in. of valve lift and prevent float and bind at high RPM with compatible cam profiles.

Do I need new pushrods or rocker arms?

Verify rocker arm compatibility with your specific cam profile. Spring replacement alone typically does not require changing pushrods if your setup is within spec.

Can I use these with a stock cam?

These springs are designed for higher-lift performance cams. Using them with a stock cam may result in excessive preload — consult KPMI for your specific build.