3/8 X .530 Viton Metal Body Seal .574 OD Providing the best sealing properties and spring clearance, viton valve seals are an excellent choice in performance applications. The 522 seals have a .575"...

3/8 X .500 Viton Metal Body Seal .540 OD Providing the best sealing properties and spring clearance, viton valve seals are an excellent choice in performance applications. The 521 seals have a .545"...

3/8 X .530 Viton Metal Body Seal .574 OD Providing the best sealing properties and spring clearance, viton valve seals are an excellent choice in performance applications. The 522 seals have a .575"...

3/8 X .530 Viton Metal Body Seal .574 OD Providing the best sealing properties and spring clearance, viton valve seals are an excellent choice in performance applications. The 522 seals have a .575"...

3/8 X .500 Viton Metal Body Seal .540 OD Providing the best sealing properties and spring clearance, viton valve seals are an excellent choice in performance applications. The 521 seals have a .545"...

3/8 X .500 Viton Metal Body Seal .540 OD Providing the best sealing properties and spring clearance, viton valve seals are an excellent choice in performance applications. The 521 seals have a .545"...

COMP Cams offers a complete line of valve stem Seals, from the stock GM "O-Ring" to the positive-stop PTFE Seal. These Seals are a must to keep unwanted oil from entering the combustion chamber...

Fits: 3/8" Valve Stems - .530" Guides (.630" Seal Diameter). Valves Seals keep unwanted oil from entering the combustion chamber through clearance in the valve guides. Smaller diameter than COMP...

Fits: 3/8" Valve Stems - .500" Guides (.600" Seal Diameter). Valves Seals keep unwanted oil from entering the combustion chamber through clearance in the valve guides. Smaller diameter than COMP...

COMP Cams offers a complete line of valve stem Seals, from the stock GM "O-Ring" to the positive-stop PTFE Seal. These Seals are a must to keep unwanted oil from entering the combustion chamber...

Fits: 3/8" Valve Stems - OE-Size Valve Guides (.900" Outer Diameter). Valves Seals keep unwanted oil from entering the combustion chamber through clearance in the valve guides. Normally used when a...

COMP Cams offers a complete line of valve stem Seals, from the stock GM "O-Ring" to the positive-stop PTFE Seal. These Seals are a must to keep unwanted oil from entering the combustion chamber...