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Speedmaster CNC ported cylinder heads are machined on dedicated 5-axis CNC machines to ensure accuracy and better flow
The internal components are made from EN36 material as used in racing
oil pan gaskets
and they may be reduced to fit if you decide to narrow your rear-end later on
Precision CNC-machined threads to ensure optimum seat pressure
Steel Gilmer Drive Alternator Pulley Only Chrome Speedmaster CNC ported cylinder headsSpeedmaster alternator pulleys are manufactured from quality materials to ensure strength and durability. They are designed to ensure belt retention at high rpm.
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