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Ships within 48 hours · Estimated delivery Jul 29 - Aug 3
Medium Eccentricity
Piston Volume -21
Larger diameter than the stock head bolts
These motor mounts are completely solid
With a unique baffling system
Outfront Motorsports Pro Series 1-2" Head Studs for EJ and FA 625+ EJ spring Kits Medium EccentricityNow Available!!! With the growing success of our ARP2000 studs we bring you the Pro Series 625+ Headstud Kit. These are the go to for 1000+ HP Subaru Engines Benefits: Reduced shank diameter (allows for no head gasket modifying) More thread engagement in block over 11mm studs Uses stock alignment pins without modifying case or heads Over 200ft lbs tested for stud "pull out" in block Custom large diameter hardened washers to prevent embedding into head