RB20/25/26/30
Mazworx RB Crank Refurb With Oil Collar Install
$399.00Machined to Order
Send in your Nissan RB series crankshaft for expert refurbishment including cleaning, oil collar installation, balancing, and polishing. Enhance reliability and performance with the Mazworx extended oil collar and precision service tailored for RB20, RB25, RB26, and RB30 engines.
Mazworx LeaskSpec RB26 Oil Pan Extension with Installation
Price range: $1,395.00 through $1,515.00Built to Order 1-2 Weeks
Increase your Nissan RB-series engine’s oil capacity with the Mazworx LeaskSpec RB26 Oil Pan Extension. Professionally installed with new seals and gaskets, this extension improves oil volume and circulation without modifying the OEM oil pickup, supporting high-performance reliability.
Mazworx RB25 Short Block Stage 2
$5,799.00Back order
Mazworx RB25 Short Block Stage 2 is precision-engineered for Nissan RB engines, supporting 600-800 hp. It features high-quality CP pistons, BC rods, and upgraded bearings, assembled with exacting machining and balancing for reliable, high-performance builds.
Mazworx RB25DET NEO Head Stage 3
$6,499.00Build to Order
Upgrade your Nissan RB20/25/26/30 engine with the Mazworx RB25DET NEO Head Stage 3. This fully built cylinder head features high-quality Supertech and Kelford components, precision CNC porting, and a professional race valve job to achieve strong, reliable performance at high RPMs.
Mazworx RB26 Stainless Steel Exhaust Stud Kit
$149.992 in stock
Complete Mazworx RB26 Stainless Steel Exhaust Stud Kit with 12 ARP stainless studs, washers, and nuts designed exclusively for RB26 cylinder heads to provide durable and corrosion-resistant exhaust fastening.
Supertech Intake Valve RB26DETT Std
$25.18Back order
Supertech Intake Valve designed for Nissan RB26DETT engines. Standard size, durable, and engineered for reliable performance and optimal engine breathing.
Supertech Intake Valve RB26DETT +1mm
$25.1812 in stock
Upgrade your Nissan RB26DETT engine with Supertech Intake Valves, featuring a +1mm size increase for enhanced airflow. Precision-crafted for optimal performance and durability across RB engine codes.
Kelford RB25 Adjustable Exhaust Cam Gear
$334.00Back order
Enhance your Nissan RB engine’s timing precision with the Kelford RB25 Adjustable Exhaust Cam Gear. Made from durable 6061 T6 aluminum with hard anodized finish and etched degree markings, it ensures reliable adjustability and long-lasting performance. Sold individually.
Kelford Cams RB26DETT ‘Shim-Under’ DLC Coated Follower
$689.001 in stock
Kelford Cams RB26DETT Shim-Under DLC coated follower engineered for Nissan RB engines. Features a 31mm OD, 3.78mm shim thickness, and low-friction DLC surface for improved durability, reduced wear, and smoother camshaft operation.
Kelford RB26/RB20 Adjustable Cam Gears
$334.00Back order
Upgrade your Nissan RB engine’s timing control with the Kelford RB26/RB20 Adjustable Cam Gears. Crafted from durable 6061 T6 aluminum and featuring precise degree markings, these gears offer improved strength, adjustability, and long-lasting performance.
Nissan Block to Head Dowel (RB)
$4.0810 in stock
OEM Nissan dowel for precise cylinder head alignment on RB engines (RB20/25/26/30). Two required per engine. Essential for accurate assembly and reliable performance.
Mazworx RB25DET Engine Bolt Kit
$79.99In stock
Complete bolt kit for Nissan RB20/25/26/30 engines featuring durable 10.9 grade hardware. Includes bolts for critical engine components..