Find below our selection of ARP reinforced fasteners for the cylinder head. From head bolts and studs to cam bolts and gear bolts, the American manufacturer develops hardware that is much more resistant than the OEM one, and is therefore specially adapted to the repair, rebuild and upgrade of your mechanics.

You are undertaking a complete overhaul of your engine and/or want to strengthen its internals to improve its performance and service life? ARP offers a range of specific fasteners for the engine block capable of withstanding very high stresses: main bolts and studs, rod bolts, harmonic damper bolts (balancer).

The manufacturer ARP has in its wide catalog reinforced bolts for clutch cover and flywheel. Designed in very resistant alloys and heat treated, they will favorably replace the OEM bolts of your vehicle for superior performance and durability. Nuts and washers supplied, where applicable.

Designed in chromoly, these ARP reinforced wheel studs have excellent tensile strength. Ideal for heavy-duty use and motor sports, they are made to withstand frequent wheel changes using pneumatic or impact tools and have a much higher resistance than the OEM supplied parts.

The American company ARP was founded in the late 1960s based on the observation that at that time there were no commercially available engine bolts and studs strong enough to withstand the heavy mechanical strains caused by motorsport use. Gary Holzapfel, a racing enthusiast, therefore decided to take advantage of his extensive experience as a qualified subcontractor in the aerospace industry to found ARP (Automotive Racing Products).

Initially established in a small garage, the firm has evolved thanks to the quality of its products to become a major company with today 7 operational units in Southern California for a cumulative surface of more than 18,000 m². With thousands of references in its catalog, the brand provides high performance spare parts for passenger cars, but also studs and bolts specially suited to F1, IndyCar, NASCAR and NHRA.