S&s Cycle Valve Spring Kit .550" Lift

Upgrade your vintage Panhead or Shovelhead with the S&S Cycle Valve Spring Kit. Designed for high-performance applications, this kit ensures optimal valve train control and reliability. Made in the USA, these springs are built to withstand the demands of aggressive camshaft profiles.

Description

The S&S Cycle Valve Spring Kit is engineered to enhance the performance and durability of your '48-'65 Panhead or Shovelhead engine. These springs are compatible with stock-style bottom collars, valve guides, and valves with stock 3/8" stems and keepers. The kit also supports thin-stem valves when used with thicker keepers that maintain proper valve stem-top collar engagement. Late single bottom collars are included for use in S&S cylinder heads for Shovelheads and stock late '81-'85 heads, providing versatile application options. Built to handle cams with up to 0.550" lift, this valve spring kit ensures proper valve closure and prevents valve float, improving overall engine performance and reliability. The kit's high-quality construction ensures long-lasting durability, making it an ideal choice for both performance enthusiasts and professional mechanics looking to rebuild or upgrade vintage engines.

Features & highlights

• Ensures additional rocker clearance for '48-'65 Panhead engines.
• Compatible with stock and aftermarket valve train components.
• Optimized for cams with up to 0.550" lift.
• Includes late single bottom collars for S&S and stock heads.
• Made in the USA with premium materials.
• Improves valve train control and prevents valve float.

Technical specifications

• Brand: S&S Cycle
• Product Name: Valve Spring Kit
• Application: Exhaust
• Spring Lift: 0.550"
• Spring Seat Pressure: 140 lb
• Collar Material: Aluminum
• Material: Titanium
• Type: Valve

Important to know

This valve spring kit is designed for use with stock-style bottom collars, valve guides, and valves with stock 3/8" stems. Thicker keepers are required when using thin-stem valves to maintain correct valve stem-top collar engagement.

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