Bronze Billet RB rocker covers - Prototype

$1,850.00
$1,850.00
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Product Description

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 Heads
Prototype 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 awesomeness

Pay homage to Skyline heritage. Precision-machined Bronze 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 & internal 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

Shipping & Return

Shipping cost is based on weight and destination. Just add products to your cart and use the Shipping Calculator to see the shipping price.

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Boost Doc prides itself on customer service, and we want happy customers and will provide a repair, replacement or refund for faulty products.

We will not refund if you simply changed your mind, found it cheaper somewhere else, decided you did not like the purchase or had no use for it.

But you can choose a refund or replacement if an item is found to be faulty.

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