Mazworx G4KF Sleeved Block Stage 2

The Mazworx G4KF Sleeved Block Stage 2 is a professionally prepped Hyundai Theta II G4KF engine block, designed to provide a solid foundation for your high-performance build. Leveraging advanced CNC machining and precision tooling, Mazworx ensures every block is thoroughly prepared for assembly and long-term durability.

Comprehensive Block Preparation Process

Each block undergoes a meticulous process starting with complete disassembly, followed by a thorough hot tank cleaning to remove contaminants. The block is then sand blasted for optimal surface condition to guarantee proper machining results.

• Removal, retapping, and replacement of the oil port plug for improved integrity
• Installation of Darton MID sleeves to strengthen cylinder walls
• Precise resizing of cylinders to exact tolerances
• Use of a torque plate during honing to simulate cylinder head stress and ensure accuracy
• Step decking to adjust deck height for proper piston-to-head clearance
• Resizing of line bore to maintain crankshaft alignment and bearing fitment

Included High-Quality Components

• ARP main studs for enhanced strength and reliability
• Darton MID sleeves known for superior durability and performance
• Miscellaneous plugs to restore sealing and pressure control

Customer Requirements

Customers are required to supply their core block, which Mazworx will expertly transform into a ready-to-assemble sleeved block tailored to your specifications.

This Stage 2 sleeved block is ideal for enthusiasts and builders seeking a robust and reliable base for their Hyundai Theta II G4KF engine projects, combining precision machining and premium components to support elevated engine performance goals.