What is the primary function of valve stem seals?

Valve stem seals prevent oil from leaking down the valve stem into the combustion chamber. This helps maintain proper oil levels, reduces blue smoke from the exhaust, and keeps the combustion process cleaner.

Why are these seals made of Viton?

Viton is a type of fluoroelastomer known for its excellent resistance to high temperatures and aggressive fluids like engine oil. This makes it a durable choice for valve stem seals in performance engines.

What does 'intake' valve stem seals mean?

This set is specifically for the intake valves. Intake valves operate in a slightly different environment than exhaust valves, and intake seals are designed to handle those specific conditions.

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GSC P-D Toyota Supra/BMW B58/N54/S55/S58 Viton Intake Valve Stem Seals - Set of 12

Specifications

Brand: GSC Power Division
Part #: 1090
UPC: GSC1090

GSC P-D Toyota Supra/BMW B58/N54/S55/S58 Viton Intake Valve Stem Seals - Set of 12

Name: GSC P-D Toyota Supra/BMW B58/N54/S55/S58 Viton Intake Valve Stem Seals - Set of 12
Brand: GSC Power Division
Price: 28.39 USD
Availability: InStock

$28.39

In Stock

GSC P-D Viton Intake Valve Stem Seals for Toyota Supra and BMW B58, N54, S55, S58 engines. Set of 12.

Key Features

Fits Toyota Supra and BMW B58, N54, S55, S58 engines.
Set includes 12 Viton intake valve stem seals.
Viton material offers good resistance to heat and oil.

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Product Details

These are GSC Power Division Viton intake valve stem seals, designed for a range of high-performance Toyota and BMW engines including the Toyota Supra, and BMW B58, N54, S55, and S58. If you're rebuilding the top end of one of these engines, replacing the valve stem seals is a critical step to ensure proper sealing and prevent oil from entering the combustion chamber.

Made from Viton, these seals offer good resistance to heat and oil, which is important for the demanding environment inside an engine. This set includes 12 seals, enough for a full set of intake valves on these inline-six engines. Replacing these seals is often done when the cylinder head is off the engine, making it a good time to refresh these components.