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The Manley titanium exhaust valve kit for Big Block GM provides a set of eight one-piece forged titanium valves with a 1.840" head diameter, 0.3415" stem and 5.440" overall length. CNC-machined and precision-ground, these valves lower valvetrain mass, support high-RPM and aggressive cam profiles, and undergo rigorous inspection to deliver consistent sealing and durability for demanding engine use.
Manley Titanium Exhaust Valve Kit - Big Block General Motors
