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Speedmaster small block 427 c
steady readings
1005 and PCE207
These Speedmaster aluminum water pump pulleys are made from a 356 aluminum-alloy that is heat-treated to T-6 specs
Chevy BBC 454 1.70 Ratio Aluminum Shaft Mount Roller Rocker Set Stock Offset Speedmaster small block 427 cSpeedmaster extruded aluminum and stainless steel shaft mount rocker system includes steel shafts with pedestals. All rockers feature large needle bearings and roller tips. For extreme high performance applications. They not only unleash horsepower, but they also lengthen valvetrain component life and reduce wear and tear on valve stem tips. These rockers are precision machined to ensure consistency and ratio accuracy and have a great looking finish.
