Custom ARP 1-2" Head Stud kit for Subaru SOHC EJ25 Mounts OEM idle hardware supported

OEM idle hardware supported

Setup: Dual Conical

Block Machining for Outfront Motorsports ½” Head Studs (Studs Are Additional)

The stock motor mounts are very soft and can fail at higher than stock power levels

MAC 45 series

Custom ARP 1-2" Head Stud kit for Subaru SOHC EJ25 Mounts OEM idle hardware supportedThis is our longer stud specifically made for the SOHC EJ25 engines. This is the next step up from the ARP 260 4702 part number. Benefits: 25% stronger than 625+ studs and 40% stronger than 11mm ARP 2000's 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 Same kit price compared to 625+