Prototype Billet RB Rocker Covers For RB Builders Who Demand More Optimized Oil Control. Engineered Style. Built to Perform.Fits: RB20 | RB25 | RB26 Twin-Cam HeadsPrototype version • Limited Production • Global Shipping 🚀 Performance-Driven. Track-Tested. Street-Approved. Introducing the ultimate upgrade for Nissan RB twin-cam engines: precision CNC-machined Billet RB Rocker Covers, built for enthusiasts who want OEM fitment with motorsport function and show-car finish. Machined from aerospace-grade 6061 billet aluminum and designed with integrated oil control technology, these covers don’t just look elite—they solve real problems RB engines face under pressure. 🔥 About These Billet Rocker Covers: ✅ Integrated Oil-Air Separator with Tesla-Style Valve Keep oil in your engine, not in your catch can. Our self-draining oil separator uses a Tesla-style vortex valve to control crankcase pressure and reduce blow-by, Low/No maintenance required. ✅ Built-In Splash Plate Stay in control of oil at high RPMs. Our baffled splash system minimizes oil mist, fumes, and oil leaving the engine—helping protect your engine and maximize usable power. ✅ OEM Fitment with Pro-Level Upgrades Uses factory rocker cover gaskets Fits OEM and aftermarket JDM oil caps Compatible with oversized ignition coils Coil cover deleted for a clean, aggressive, race-spec finish Direct bolt-on for all RB20, RB25, and RB26 twin-cam heads ✅ Machined GT Stripe Pay homage to Skyline heritage. Precision-machined “GT” stripe post-anodizing delivers iconic styling with show-winning presence. ✅ Custom Finished , 1 set only prototype covers, 1 set only, crafted in limited runs, ensuring your setup stays unique. 🧠 Designed by RB Enthusiasts. Engineered for the Real World. RB engines breathe hard—and other rocker covers simply can’t keep up. Whether you're hitting boost at 9,000 RPM or prepping for a show, these covers deliver modern functionality with period-correct appeal. From oil control to visual impact, no detail is overlooked. This is not a vanity part. It's an upgrade you'll feel—and see. 💥 Specifications: Material: 6061-T6 Billet Aluminum Machined Finish: Hard Anodized with GT stripe Compatibility: RB20 | RB25 | RB26 (Twin-Cam) Origin: Proudly designed & CNC-machined in Australia ready to ship, currently located in New York USA. Comes with splash plate, cover plate. 🛒 Ready to Elevate Your RB Build? Don’t settle for factory leftovers or cheap imitations. Own a piece of billet excellence that reflects the power, pride, and precision behind your engine bay. 📦 secure this set before someone else does! 👉 ORDER NOW 💡 Because when it comes to oil control and engine bay aesthetics—this is the upgrade that makes it all come together. #RB26 #RB25 #RB20 #SkylineBuild #BilletCovers #RBPower #AftermarketElite #EngineeredNotBought #BoostCulture #RBrockerCovers #JDMParts #BuiltNotBought
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