Looking to build your next RB26 with confidence? Our all-new cast Nissan RB26 engine blocks are engineered for serious street and race applications, combining modern upgrades with proven reliability. These blocks are machined in-house and ready for assembly, offering a range of options tailored to your build goals and power levels. Choose from three configurations to suit your needs: the R0 Street with OEM-style main caps, the R1 Race with a 2-bolt integrated main brace, or the R1 Pro with a 4-bolt brace for extreme builds. All options come with precision machining, including final bore prep (86.5mm as standard), main tunnel work, and a finished deck surface—making them truly Ready to Build. Every block features robust enhancements, such as a 12.5mm deck, ductile iron construction, Siamese bores, and upgraded oiling solutions for high-performance reliability. With support for up to 90mm bore sizes and custom stud options, these blocks are ideal for 2.8L or 3.0L RB builds pushing the limits. Block Options:Pricing includes a finished machined block and Bore Size (86.5, may need finishing honing to suit your piston to wall) | Main Tunnel Machine Work and finished deck for a Ready To Build solution) We offer various block options, including: R0 Street, standard OEM style main cap cradle R1 Race, integrated main brace with 2 main bolts R1 Pro, integrated main brace with 4 main bolts Enhanced Features: Our blocks include several enhancements: Threaded anodized welch plugs, not the standard ones. Oil galleries relocated to accommodate larger strokes. 8mm bore, suitable for up to a 90mm piston. A robust 12.5mm deck thickness, reducing the risk of cracking. Head studs extend to the main cap, allowing for longer head stud options. Ductile iron construction eliminates the risk of cracking. Siamese bore configuration for added strength. Larger oil drain backs in the block. Rerouted turbo oil feed to maintain structural integrity. Additional head and turbo drain provisions in the block. Customization Options: Our blocks come pre-machined for the brace and can be supplied with 12mm, 1/2", or 9/16" head stud options, including long studs. We provide blocks that are tunnel bored and machined to your specifications. Bore Sizes: 86.5mm variant for OEM stroke and our true 2.8L variant for 79mm crank. 90mm in the 3.0L variant90mm Bore - 2mm Higher Deck Height* We’re excited to announce that we are now fully equipped for high-volume production, and our engine blocks are officially available for purchase. Pre order allocations have been acquired. Join the queue for your ultimate RB engine build! If you're planning to purchase a block, we highly recommend contacting our team at [email protected]. One of our build specialists will guide you through the process to ensure all additional components are compatible with your specific build.
