Engine & Performance Warehouse B203HP Valve Spring Insert .810" x 1.25" Type B High Performance (50-Pack)

The Engine & Performance Warehouse B203HP is a Type B high-performance valve spring insert designed for professional engine builders and automotive machine shops. These precision-engineered inserts are essential components for maintaining optimal valve train performance in rebuilt and performance engines.

Specifications:

• Inside Diameter: 0.810 inches
• Outside Diameter: 1.25 inches
• Thickness: 0.030 inches
• Type B - High Performance Grade
• Blue color coating
• Case hardened construction
• Flat design
• Made in the USA
• Standard pack of 50 inserts per box

Features and Benefits:

• Patented serrated design for superior oil channeling and heat dissipation
• Compensates for loss of spring pressure during engine break-in
• Prevents valve spring damage from heat-set on new springs
• Case hardened for extended durability and service life
• Preferred by professional engine builders since 1959
• High-performance grade for demanding applications

Valve spring inserts are critical for prolonging valve train life by maintaining proper spring pressure and providing controlled oil flow. The patented serrations in these VSI inserts outperform plain valve spring shims by allowing proper lubrication and heat management in the valve spring pocket. These Type B inserts are specifically designed for use with new valve springs to compensate for the natural settling that occurs during initial engine break-in.