ARP
ARP

ARP (Automotive Racing Products) is the world leader in high-strength fasteners, trusted by engine builders everywhere. From head studs to main studs and rod bolts, ARP hardware delivers the clamping force and reliability demanded in extreme performance engines.
Spool Imports stocks ARP kits for Nissan RB, Toyota JZ, Ford Barra, GM LS, Mitsubishi 4G63, Subaru EJ, SR20 and more. Whether you’re building a street car or a 2,000hp drag motor, ARP studs and bolts are the proven choice.
Why choose ARP: engineered from premium alloys like ARP2000, L19 and Custom Age 625+, ARP fasteners provide superior tensile strength and fatigue resistance compared to OEM bolts. Each stud and bolt is precision-machined, heat-treated and tested for consistency.
- Head stud kits for stable cylinder sealing under high boost.
- Main stud kits to secure crankshafts at high RPM and load.
- Balancer bolts designed to ensure your balancer is retianed at high power.
- Multiple material options (ARP2000, L19, Custom Age 625+) for different power levels.
Applications & fitment: ARP offers dedicated kits for popular performance engines. Always verify torque specs, lubrication requirements and sequence when installing. For maximum reliability, use ARP Ultra-Torque fastener assembly lube and follow the included instructions closely.
Why buy from Spool Imports: we carry ARP kits specifically for the engines our customers build, with fast dispatch from Queensland. As a Capricorn Preferred Supplier, we make it easy for workshops and trade customers to order the right hardware with confidence.
Explore the full range of ARP head studs, main studs and rod bolts at Spool Imports and secure your engine with the best.