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Manley's titanium exhaust valves for Big Block GM with Dart Pro1 heads are supplied as a set of eight with 1.900" head diameter, 0.3415" stem and 5.440" overall length; a bead-loc groove option is noted for retention styles. These one-piece forged titanium valves are CNC-machined and precision-ground to reduce valvetrain mass and maintain reliable sealing and dimensional consistency in high-RPM applications.
Manley Titanium Exhaust Valve Kit - Big Block General Motors - Dart Pro1
