King Subaru EJ205/EJ255/EJ257 (Size STDX) pMaxKote Performance Rod Bearing Set | CR4125XPGCSTDX

Product Description

Fitment:

EJ205/EJ255/EJ257 Engines

Features:

Nano-composite Polymer Coating – With No Added Thickness!

Anti-Friction Coating

Material: pMax Black (racing line)

Journal Size: 52mm

No Machining Required

Size: .001 Oversized

pMaxKote™ enhances the following benefits of King XP race bearings:

Superior seizure resistance

Superior cavitation resistance

Superior wear resistance

Superior protection against oil starvation

pMaxBlack™ tri-metal structure

Intermediate layer

The intermediate layer of a typical race bearing contains 2-3% tin, with hardness values of 90-95 HV. For a superior pMaxBlack™ intermediate layer, we increased the tin content to 4.5%, making it 22% harder at 115 HV, with a load carrying capacity of 17,000 psi.

pMaxBlack™ Overlay

The overlay of a typical high performance bearing consists of a leaded alloy that contains 2-3% copper. It achieves a hardness level of 11 – 14 HV, and a maximum load capacity of 8,000-8,500 psi.

King’s pMax Black™ overlay is significantly stronger than conventional overlays due to its 5% copper content and an innovative nano-scaled hardening process.