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Speedmaster offers their version
They are designed to ensure belt retention at high rpm
the IAC valves adjust the airflow to improve motor idling
and you can choose between plain polished
Speedmaster H-beam connecting rods are perfect for supercharged and nitrous applications
Chevy SBC 350 1.5 Ratio 7/16" Ultra Black Chromoly Roller Rocker Arms Set Speedmaster offers their versionSpeedmaster roller rockers are available in various ratios, so you are good to go. They feature greater strength and durability, capable of withstanding valve spring load. .
US$ 2365.00
US$ 2543.75
US$ 2543.75
US$ 4052.50
US$ 2518.75
US$ 3566.25
US$ 2697.50
US$ 3182.50
