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
• 3/8 NPT
• Threads into lifter valley
• 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