ARP Custom Age 625+ 11mm Head Studs for EJ DOHC Engines FA20 Timing Parts This item is double oringed

This item is double oringed for a leak proof seal

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No Ground Clearance Loss – Clears factory skid plate without using spacers

Blouch 71mm XT compressor wheel supporting 49lbs

ARP Custom Age 625+ 11mm Head Studs for EJ DOHC Engines FA20 Timing Parts This item is double oringedThis stud kit is the strongest ARP material with no modifications needed to block or heads. Outfront recommends this stud kit from 400 600HP range. Allen socket head for easy installation. The kit includes washers and nuts, and the studs. They are made from a high strength, super alloy called custom age 625+. Typical tensile strength is 260 280ksi. Typical shank diameter . 361"