HarleyM8SpringKit

Additional Information

The M8 Spring and Retainer kit features our Beehive springs for a .530" max lift and increased valvetrain stability. The kit includes our Tool Steel retainers for increased strength and light weight.

Part Type

Engine Valve Spring Kit

• Beehive valve spring design increases valvetrain stability
• Lightweight tool steel retainers reduce valvetrain weight while increasing rigidity
• The Harley M8 spring kit increases maximum valve lift to 0.540".

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Product Downloads

#	Document Type	Download
1.	Catalog

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Reference Information

Engine Valve Spring Kit, Harley Milwaukee 8 Beehive Spring Kit w/ Tool Steel Retainers; .530" Max Lift