Butler Performance Complete Evac Pump Kit BPI-EVAC-GZ

GZ's Billet Pumps generate more vacuum, flow more air and are more reliable than the others. You won't be needing to take ours apart all the time to clean it either! GZ carbon fiber vanes with Rulon wipers seal better than anything else available which translates to less overall operating cost for your hotrod.

These Butler Performance crankcase evacuation pump kits are the most complete and easiest to install on the market today. Comes with everything you need to bolt on in just minutes, including a detailed instruction sheet. Evac Pump and Drive Kit. produces crank case Vacuum to improve ring seal, Prevent blow by and leaks, and reduces intake charge contamination.

Now includes the Butler designed 1" billet crank mandrel with cut to size billet spacer sleeve and cap. This spacer gives you unlimited spacing options for custom fitments.

The kits come standard with the recommended 3.5" drive pulley. 

Now includes billet adjustable vacuum relief valve to easily adjust crank case vacuum for any application

Drive mandrel will not work with Fluid Damper which is 4 bolt for big block Ford

If adding the MOR-68788 / It will require a ½” NPT to -10AN fitting to use with a GZ vac. pump kit

Requires -10AN Fitting in valve cover. Baffle highly recommended.

***See our EVAC valve covers for preinstalled bung and baffle.***

***NOT COMPATIBLE WITH AC***

***Not recommended for autocross or road race applications***