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Speedmaster Aluminum Roller Rockers are extruded from 6061 T6 Aluminum
Four corner water ports
Speedmaster manufactures these master cylinders from quality materials to ensure proper fitment
Complete kit with Multi-Layer Steel (MLS) Head Gaskets
1.400" Od. 1.060" Id.(+.050) 10 Deg 11/32 Chromoly Steel Valve Spring Retainers Speedmaster Aluminum Roller Rockers areSpeedmaster chromoly steel retainers are made from 4140 chromoly and then heat treated for long life. These retainers are available in a variety of lock angles and sizes to suit your needs, from performance street to competition use. This specific retainer is designed to add to the installed height by . 050 effectively decreasing spring pressure.
