Best Engine Internals & Accessories for 1999-2002 Nissan R34 Skyline

The RB26DETT's bottom end is a capable foundation, but the factory internals weren't built for sustained high-RPM track use or serious power figures. Engine internals and accessories for the R34 GT-R and GT-T cover a broad range — fabricated steel oil pans for oil control under hard cornering, billet dipstick assemblies, harmonic balancers, and catch can breather setups that keep the motor protected on track. Fitment is everything here. RB-series engines span the RB20, RB25, and RB26 — some components cross over, others don't. Confirm compatibility with your specific block before buying. On oil management, a quality fabricated pan with a billet rail is a genuine upgrade over the factory pressed steel unit if you're running the car hard. RTS make a well-regarded option that fits the RB family. Harmonic balancers are worth attention on any built motor — worn or incorrect units cause torsional vibration that compounds quickly under load. For breathers and venting, consider how your setup interacts with the PCV system. A properly routed catch can does real work on a hard-driven RB. Browse the full range below and filter by part type to find what suits your build.