Billet Rocker Covers – RB25-26 Performance

$1,850.00
$1,850.00
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Product Description


Billet Rocker Covers – RB Performance

Engineered for serious RB performance builds, these Billet RB Rocker Covers are purpose-built for big boost, high-RPM, heavy-breathing engines. Designed from the ground up to improve crankcase venting control, minimise oil loss, and support modern boost strategies, they deliver both functional performance and a premium billet finish.

Key Features

    • Integrated Baffle System for controlled oil fume breathing

    • Integrated Splash Plates to stabilise oil under RPM and boost

    • Flushed PCV Ports with O-Ring Connections for leak-free plumbing

    • Enhanced Oil Vapour Control to reduce mist and blow-by

    • Self-Draining Internal Design to return oil back into the head

    • Reduces Oil Accumulation in Catch Cans for cleaner, longer service intervals

    • Flush-Finish Housing for a sleek, modern engine bay

    • PCV Exits at Rear of Covers for tidy hose routing

    • Uses Stock Rocker Cover Gaskets

    • Accepts Factory Oil Cap

    • Available in Multiple Colours

    • Optional GT Stripe or Smooth Finish

  • Also fits with Boost Doc long splash plates for maximum control

Fitment

✔ RB20
✔ RB25
✔ RB26
✔ RB30DET 

Perfect for Skylines, Stageas, Patrol swaps, Laurel/Cefiro builds, and RB-powered track or street cars.

Performance Benefits

  • Built for high crankcase pressure from large turbos and boost

  • Helps stabilise oil control under hard acceleration and RPM

  • Reduces oil mist for cleaner catch-can systems

  • Supports reliable breathing in 600–2500+hp applications

  • CNC billet construction for strength and thermal stability

Design Notes

  • No coil cover included

  • No front timing cover included

  • Designed for direct replacement of OEM twin-cam RB covers

Ideal For

  • High-boost street builds

  • Drift, drag, and circuit engines

  • Dry sump and high-RPM applications

  • Clean show-car engine bays

  • Builders wanting a premium billet upgrade with functional airflow advantages

Why Builders Choose These Covers

Because they’re not just cosmetic—these covers are engineered for real crankcase control, modern airflow strategy, and a premium billet finish that suits serious RB engines pushing the limits.

Machined To Order:

  • Please allow 6-8 weeks from order to delivery

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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