Mazworx RB30/26 Long Block Stage 3.2 AWD

This Mazworx long block combines a stroked RB30 block with a high-performance RB26 head to create a robust 3.2-liter AWD powerplant. Developed to meet the demands of racing enthusiasts, this Stage 3 build offers a blend of proven components and precision machining for reliable performance.

Engine Block Assembly

• Disassembly of short block, thorough hot tank cleaning, sandblasting, and iron block painting
• Machining for threaded oil port plugs, freeze plugs, and RB26 head stud installation
• Modification of the main oil groove and installation of billet main caps with an AWD girdle for enhanced block rigidity
• Conversion of the block to an AWD configuration and resurfacing to ensure proper inline fitment
• Precision resizing of cylinders with torque plates, line bore resizing, and full crankshaft inspection including polishing and balancing
• Complete reassembly of the short block

Key Components in Block Assembly

• CP pistons at 86.25mm with 10:1 compression ratio, built for heavy-duty applications
• Upgraded 9310 wrist pins featuring a 0.250″ wall thickness
• Brian Crower billet crankshaft with a 90mm stroke for increased displacement
• Nitto Engineering connecting rods with 22mm wrist pins
• ACL race bearings ensuring durability under high load
• ARP 12mm main studs and Mazworx billet main caps with AWD girdle for superior strength
• Mazworx’s proprietary threaded and O-ringed small and freeze plug kits

Stage 3 Cylinder Head

• Complete disassembly and sandblasting for a clean base
• Port and combustion chamber CNC work for optimized airflow and performance
• Camshaft clearance modifications and machining for threaded freeze plugs
• Valve guide removal, re-installation, and reaming followed by a professional race-spec valve job
• Precision valve lash setting and head resurfacing
• Assembly incorporating high-performance components

Stage 3 Head Components

• Kelford 182-E cams with 280° duration for intake and exhaust
• Kelford DLC coated cam followers for reduced friction
• Kelford RB26DETT beehive springs with titanium retainers rated at 105 lbs
• Supertech intake valves with +1mm size increase
• Supertech Inconel exhaust valves also increased by +1mm for enhanced durability at high temperatures
• Supertech bronze valve guides, titanium retainers, and valve seals
• Ferrea valve locks and Mazworx threaded freeze plugs

Complete Long Block Details

• ATI Super Damper to reduce vibrations and protect engine components
• ARP crank bolt and CA625+ head studs for critical fasteners
• Tomei upgraded oil pump for improved lubrication
• Oil pan extension for increased capacity
• Hi-Octane 12-tooth crank trigger for accurate ignition timing
• Gates timing belt and OEM timing belt pulleys
• Apexi 88mm x 1.2mm head gasket
• Kelford adjustable cam gears for precise tuning
• OEM water pump and powder coated valve and timing covers for durability and aesthetics
• Mazworx bolt kit and break-in oil with filter included
• Engine is fully spun and primed, ready for installation

Customer-Supplied Items

• RB30 block
• RB26 long block

This comprehensive rebuild and upgrade package is ideal for those seeking a high-quality, hand-crafted long block that leverages the strength of an RB30 block with the advanced head design of the RB26. Perfect for AWD applications, the Stage 3.2 build balances durability and performance for demanding motorsports environments.