S&S Cycle Valve Spring Shim 0.030 Inch for B3 Heads

S&S Cycle Valve Spring Shim 0.030 Inch for B3 Heads

Precise valve spring installed height is the foundation of reliable valve train geometry – too much or too little changes open pressure, close pressure, and the margin that keeps the valve from kissing the piston. S&S Cycle’s B3 head valve spring shims let builders dial in exact installed height with consistent, measured increments that keep the valve train operating within specification.

Key Features

• 0.030-inch shim for precise valve spring installed height adjustment in B3 heads
• Designed for .720-inch and .660-inch lift valve springs used in S&S B3 cylinder heads
• Black steel construction for durability under valve spring load
• Sold individually – order the quantity needed for your build

Technical Specifications

• Inner Diameter: 0.574 inch
• Outer Diameter: 1.450 inch
• Thickness: 0.030 inch
• Material: Black steel
• Application: .720-inch and .660-inch lift valve springs in S&S B3 heads
• Quantity: Sold each

Fitment Notes

• Designed for use with .720-inch and .660-inch lift valve springs in S&S B3 cylinder heads
• Sold individually – measure installed height and order the quantity required for your build
• Review the Fitment tab for complete head compatibility information