Specifications

• Part# PAC-S121
• Name Valve Spring Seat
• SKU PAC-S121
• Alt Part# PAC-S121-16
• Description Chrome Moly Steel (0.060 Thickness) Seats- .520 Guide
• Material CHROME MOLY
• Stepped Seat No
• Outside Diameter (A) 1.27
• 1st Step Diameter (B) 0.64
• 2nd Step Diameter (C) N/A
• 3rd Step Diameter (D) N/A
• Valve Guide Hole Size 0.52
• Thickness 0.06