Platinum Racing Products has introduced a new Australian manufactured RB26 cast iron engine block designed to meet the needs of street and race engine builders. Available in three distinct configurations, these blocks represent a significant option for enthusiasts and professionals looking to upgrade or rebuild RB26 powered vehicles. Each variant addresses different performance levels and comes pre-machined to specific tolerances for faster assembly.
Three Block Configurations for Different Applications
The engine block lineup includes three primary options tailored to various use cases. The R0 Street model features a standard OEM style main cap cradle and costs $8,800 AUD, making it an entry point for those prioritizing street performance. The R1 Race variant incorporates an integrated main brace with two main bolts for $10,900 AUD, designed for track and competition use. Finally, the R1 Pro model steps up performance further with an integrated main brace and four main bolts, priced at $11,500 AUD. All pricing includes fitting and machining work for braces, removing the guesswork from the build process.
Key Structural Improvements and Features
Each block incorporates several engineering enhancements that distinguish them from stock offerings. The ductile iron construction eliminates cracking risks common in standard aluminum blocks, while the robust 12.5mm deck thickness provides additional durability under extreme conditions. Siamese bore configuration increases strength and support for high performance applications. The blocks feature relocated oil galleries to accommodate larger strokes, larger oil drain backs for improved circulation, and rerouted turbo oil feed lines that maintain structural integrity during boost situations. Additionally, engine components like modern cylinder heads designed for boosted applications pair well with these blocks for comprehensive performance upgrades.
Threaded anodized welch plugs replace standard versions for better sealing and longevity. Head studs extend all the way to the main cap, allowing builders to select longer stud options for increased clamping force and reliability. Additional head and turbo drain provisions are built into the block design, reducing the need for custom fabrication.
Bore Sizes and Customization Options
Platinum Racing offers flexibility in bore sizing to match different performance goals. The 86.5mm bore variant accommodates OEM stroke applications and maintains compatibility with the standard block configuration. For those seeking increased displacement, the true 2.8L variant uses a 79mm crank, while the 3.0L variant features a 90mm bore with a 2mm higher deck height. All blocks arrive tunnel bored and machined to your specific requirements, eliminating hours of machine shop time.
Buyers can specify 12mm, 1/2 inch, or 9/16 inch head stud options, including extended studs for applications requiring maximum clamping load. The blocks ship pre-machined for brace installation, simplifying the assembly process and reducing the potential for fitment issues. This level of customization means your block arrives ready for the next steps in your build, whether that involves matched high quality forged pistons or other performance internals.
What This Means for Engine Builders and Buyers
The introduction of this purpose built engine block addresses a gap in the market for quality RB26 options that go beyond stock specifications. Builders no longer need to compromise between cost and performance when selecting a foundation for their engine project. The three tier pricing structure allows shops and enthusiasts to select the configuration that matches their budget and performance targets.
Pre machining and customization capabilities reduce build timelines significantly. Instead of sourcing a core block and spending weeks at the machine shop getting bore work, oil galleries adjusted, and braces installed, builders receive a nearly ready to assemble component. This approach delivers value by minimizing labor costs and reducing the chance of fitment problems during assembly.
The focus on durability through ductile iron construction and structural enhancements like the siamese bore configuration means these blocks can handle substantial power levels reliably. Whether you’re building a street cruiser or competition engine, properly matched components like modern custom camshaft solutions will further enhance your engine’s performance and longevity.
For anyone planning an RB26 engine project, evaluating these block options makes sense before committing to a standard core or used block. The engineering improvements and customization features provide real performance advantages while the all inclusive pricing simplifies budgeting and project planning.
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