ARP Head Stud Kit for Toyota 1.8L 4-Cylinder

ARP Head Stud Kit for Toyota 1.8L 4-Cylinder Upgrade engine reliability and performance with the ARP Head Stud Kit, precision-engineered for Toyota 1.8L 4-cylinder engines. Built to deliver consistent clamping force, exceptional strength, and long-term durability for street, track, and competition use. Precision fit: CNC-rolled threads and OEM-correct length ensure accurate alignment and effortless installation on Toyota 1.8L heads and blocks. Premium materials: Manufactured from ARP’s high-strength alloy to resist stretch, maintain torque under extreme heat, and withstand repeated load cycles. Enhanced sealing: Superior clamping force reduces head lift and head gasket failure, improving combustion sealing and boosting reliability under boost or high compression. Complete kit: Includes studs, nuts, and washers with clear torque specs — ready for installation and hassle-free assembly. Performance-ready: Suited for mildly boosted builds to high-power race engines where head integrity is critical. Why choose ARP: Trusted engineering, consistent clamp loads, and proven durability protect your engine investment while unlocking safer, repeatable power from your Toyota 1.8L 4-cylinder.