Description
; Two styles allow fastening through valve covers (No. 22637) or threaded directly into lifter valley (No. 22636); Vacuum relief point is adjustable by shimming an internal spring to get the precise amount of vacuum desired; Can be disassembled for easy cleaning and maintenance and works with any vacuum level; They are made of 6061 T6 Billet aluminum and have a clear, attractive finish
Spring Style
3/4-16 Thread
Fastens through valve covers
Vacuum relief point adjusts by shimming an internal spring for exact vacuum amount
Works with any vacuum level
6061 T6 Billet aluminum
Not legal on pollution-controlled vehicles
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