Mazworx Pro Drag Billet 2JZ Block

The Mazworx Pro Drag Billet 2JZ Block redefines the durability and performance standards for Toyota 2JZ racing engines. Engineered to overcome the typical limitations of traditional iron blocks, which often suffer from vertical splitting near the head studs and main cap loosening above 2000 horsepower, this billet aluminum block delivers exceptional strength and reliability for extreme power builds.

Premium Construction and Design

• Lightweight and Robust: Crafted from high-grade 6061-T6 aluminum, the block provides a superior strength-to-weight ratio compared to iron counterparts.
• OEM Deck Height Compatibility: Maintains the stock deck height to ensure a seamless fit with original components and facilitate straightforward installation.
• Custom Darton Sleeves: Integrated sleeves enhance wear resistance and durability under intense racing conditions without sacrificing cylinder roundness, as the block is designed without traditional water jackets.

Enhanced Fastening and Structural Integrity

• Reinforced Stud Systems: Features a combination of 1/2″-9/16″ head studs and 1/2″ main studs, along with 3/8″ cross bolts on the center five mains, significantly improving clamping force and block stiffness.
• 4140 Chromoly Main Caps: Equipped with durable 4-bolt main caps on caps 2 through 6, which are individually removable to simplify maintenance and repairs during racing events.
• Optimized Internal Clearances: Cylinder tunnels are designed to accommodate strokes up to 94mm with aluminum rods, offering flexibility for high-performance stroker engine builds.

Advanced Oiling System

• -12AN Main Oil Inlet: Ensures ample lubrication necessary for high-horsepower applications.
• Dedicated Single Turbo Oil Feed: Supports demanding turbocharged setups for sustained engine health under racing stresses.

The block ships ready for assembly and includes main caps and a main stud kit. Weighing approximately 85 lbs, it arrives unfinished, requiring final cylinder honing, line honing, and optional O-ring groove machining tailored to your build specifications. Mazworx provides these finishing services as selectable options to meet your precise performance goals.