Street RPMs – Factory Replacement Rocker Arms for Holden 6-Cylinder Engines

 Precision. Reliability. Performance – New Product - Built for the Legendary Holden Six.

FACTORY RATIO

 The Street RPMs Factory Replacement Rocker Arm Kit is the ultimate value upgrade for Holden 6-cylinder engines — engineered to deliver superior performance, durability, and precision at an unbeatable price. Designed for street performance and sportsman racing, these rocker arms meet or exceed OEM standards, while offering significant improvements in strength, accuracy, and smooth operation. Each arm is CNC machined from aircraft-grade alloy, utilizing the same extreme-duty hardware featured in our Platinum Race Series. This ensures trouble-free performance and long-term reliability, even under the toughest conditions.

Our Street RPM kits provide a direct bolt-on upgrade for factory stamped steel rockers — install in under an hour, with no cylinder head removal or machining required. Perfect for standard rebuilds, OEM replacements, and mild street performance builds, these rockers are the smart choice for anyone looking to give their Holden 6 the precise valvetrain control it deserves.

Why Choose Street RPMs Rockers for Your Holden 6?

• Factory-Accurate Ratios- Every rocker arm is precision-machined to deliver factory-correct ratios and geometry — no uneven lift, no random tolerances, and no compromise. Enjoy smooth, consistent valvetrain operation and reliable power output.
• Aircraft-Grade Alloy Construction-Manufactured from USA-sourced aircraft-grade alloy for exceptional strength and accuracy. Unlike heavy or poorly machined imports, these rockers maintain exact alignment and durability under sustained RPM.
• Australian Designed & Manufactured Proudly designed and built in Australia, specifically for Holden engines. Our local valvetrain engineers have refined every detail for precision, longevity, and superior fit — because we understand the Holden six like no one else.
• Direct Bolt-On Installation -Fully compatible with factory pushrods and OEM geometry. Simple bolt-on installation with no head removal or modification required — get back on the road or track faster.
• Fits Under Factory Rocker Covers- Keep your original look while upgrading your performance. These rockers sit neatly under standard factory rocker covers, no clearance issues or extra parts required.
• Premium USA Roller Bearings & Australian Shafts- Equipped with high-quality USA roller bearings and Australian-engineered shafts for smooth, low-friction operation and long-term dependability.
• Improved Valve Lift & Airflow- Designed for increased mechanical movement, providing greater valve lift and improved airflow — translating to more efficiency, more response, and more power.
•  Precisely machined offsets ensure perfect valve alignment and minimal valve guide wear. Unlike one-size-fits-all rockers, these are tailored to suit the Holden 6-cylinder’s unique geometry.
• Shim Kit Included-Each kit includes precision shims for accurate preload adjustment, allowing you to fine-tune your valvetrain setup for optimum performance.
• Precision Roller Nose- Features a machined roller nose and pivot pin with a unique internal circlip to prevent side movement, maintaining precise valve actuation under all conditions.
• 30% Stronger & 30% Lighter- Compared to heavy steel alternatives, these rockers are 30% stronger and 30% lighter — reducing valvetrain mass, improving throttle response, and enhancing overall reliability.

 Street RPMs Rocker Arms – when precision matters and performance counts.

Tech Spec