What does the conical round wire design do?

The conical shape of the wire helps to reduce spring surge at higher engine speeds. This means the valve springs can maintain better control over the valves, especially when the engine is running at higher RPMs.

What is the maximum valve lift this kit can handle?

This valve spring kit is designed to handle up to .585 inches of valve lift. This makes it a good choice if you are installing a camshaft with a more aggressive lift profile.

Does this kit come with all the necessary hardware for installation?

This kit includes the valve springs. It is recommended to refer to the manufacturer's installation instructions for a complete list of required components and hardware for your specific application.

S&S Cycle .585in Conical Round Wire Valve Spring Kit 900-059

Name: S&S Cycle 1984+ BT .585in Conical Round Wire Valve Spring Kit
Brand: S&S Cycle
SKU: s-s-cycle-s-s-cycle-1984-bt-585in-conical-round-wire-valve-spring-kit-t14-662478
Price: 165.67 USD
Availability: BackOrder

S&S Cycle 1984+ BT .585in Conical Round Wire Valve Spring Kit

$165.67

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

S&S Cycle 1984+ BT .585in Conical Round Wire Valve Spring Kit. Improves valve control for your Big Twin.

Key Features

Fits 1984 and newer Big Twin Harley-Davidson models.
Features conical round wire construction to reduce spring surge at higher RPMs.
Rated for .585 inch valve lift, suitable for upgraded camshafts.
Designed for improved valve control and engine performance.

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Product Details

Built with conical round wire, this valve spring kit from S&S Cycle is designed for 1984 and newer Big Twin Harley-Davidson engines. The conical shape of the wire helps reduce spring surge at higher RPMs, allowing for more consistent valve control. This is important for maintaining proper engine timing and performance, especially when you're pushing your bike harder.

This kit is a well-built option for anyone looking to upgrade their valve springs. The .585 inch lift capability means these springs can handle more aggressive camshaft profiles. When you're rebuilding the top end or installing a new cam, choosing the right valve springs is crucial for ensuring everything works together smoothly and reliably. S&S Cycle has a solid reputation for making reliable engine components, and this kit is no exception.

If you're working on a 1984 or later Big Twin, this valve spring kit is a direct fit. Make sure to check the manufacturer's installation instructions for any specific requirements related to your build.