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Ships within 48 hours · Estimated delivery Aug 12 - Aug 17
manual or EFI pump
One very small
Speedmaster Aluminum Roller Rockers are extruded from 6061 T6 Aluminum
If your standard Bowtie block could handle 1500+ HP it would be Speedmaster's H1 engine block
Speedmaster automatic transmission rebuild components ensure smooth gear changes and overall transmission performance
Oldsmobile 330 350 400 425 455 1.6 Ratio Aluminum Shaft Mount Rocker Arm Set manual or EFI pumpSpeedmaster 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 anodized
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