Speedway Motors 8 Piece D/Hump Aluminum Head Valve Seal Kit

The Speedway Motors 8-Piece Valve Seals Kit is designed specifically for D-port or "double hump" aluminum cylinder heads. Each valve seal in the kit features a precision 3-piece construction, ensuring optimal sealing performance and durability under high-performance engine conditions.

With an outer diameter of 0.688 inches and a total length of 0.483 inches, these seals are engineered for a snug and reliable fit. The inner diameter dimensions are 0.317 inches through and 0.477 inches with a depth of 0.327 inches, providing compatibility with a range of valve guide configurations. This kit is an excellent solution for maintaining proper oil control and valve stem lubrication in high-output applications.

• 8 Piece Set
• 3-piece construction
• .688" O.D.

• .688 OD X .483 Long
• .317 ID THRU
• .477 ID X .327 Deep
• 3 Piece Construction