ARP 2000 Head Studs2.0 / 2.3 EcoBoost Focus ST/RS Mk3

ARP Head Studs

It is for many reasons that virtually every top professional engine builder relies on ARP Pro Series head studs for their competition engines. Simply stated, there’s not a better stud setup on the market today.

Why ARP Studs are Superior

Firstly, ARP uses a premium grade 8740 alloy, rated far superior to aircraft quality. Secondly, studs are placed vertically into racks, and heat-treated to 190,000 psi. This procedure ensures complete heat penetration. As a result, they are far superior to lesser quality studs from other manufacturers, who just dump pieces in a basket and hope for the best.

Each stud is centreless ground after heat treatment. Consequently, the stud is as close to perfectly concentric as possible. This procedure involves about ten very slight cuts, and results in an exceptionally straight part. Additionally, poorer quality studs are not centreless ground. In fact, the material is thread-rolled in ‘bar stock’ form. This is done before heat treatment, when the material is easier to machine. Because ARP studs are manufactured to such exacting tolerances, you will note that gaskets and cylinder heads literally glide into position, and are perfectly aligned.

Quality Assurance

ARP studs are thread rolled after heat treatment. This gives them around 20 x better fatigue strength than studs threaded prior to heat treatment, which is a very common industry practice. Consequently, it costs a lot more to do it this way, because it’s tough on tooling, but the results are well worth the extra effort.
Ultimately, you won’t find a better quality stud on the market from any other source. Look for ARP stamped on each stud as your assurance of quality.

Ford EcoBoost I4 (4 cylinder)
Application:

• Ford Focus Mk3 ST 2.0 EcoBoost 2012-2018
• Ford Focus Mk3 RS 2.3 EcoBoost 2016-2018
• Ford Galaxy 2.0 EcoBoost 2010-2015
• Ford Kuga 2.0 EcoBoost 2014-
• Ford Mondeo Mk4 2.0 EcoBoost 2010-2014
• Ford Mondeo Mk5 2.0 EcoBoost 2014-
• Ford Mustang 2.3 EcoBoost 2012-
• Ford S-Max 2.0 EcoBoost 2010-2015-