S42 M42 Intake, Exhaust, & Keeper Kit for 16V motors. Select from the list of optionns including singlle or triple groove keepers. Inconel or bkacj nitrided construction. Also available in +1mm oversize option.
Note Inconel and over sized valves only come in Single Groove Configurations.
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M50 S50 M52 S522 M54 Intake, Exhaust, & Keeper Kit for 24V motors. Select from the list of optionns including singlle or triple groove keepers. Inconel or bkacj nitrided construction. Also available in +1mm oversize option.
Note Inconel and over sized valves only come in Single Groove Configura..