Spool Performance Darton Sleeved M178 Engine Block SP-ENG-M178-DSB

Mercedes-AMG M178 Darton Sleeved Engine Block

The Spool Performance Darton Sleeved M178 Engine Block service addresses the limitations of the factory aluminum M178 block, designed to handle modern high-boost, high-power applications. By installing Darton ductile iron sleeves, this service significantly increases cylinder strength, reduces distortion, and ensures long-term reliability for extreme horsepower builds.

Key Benefits

• Dramatically increased cylinder strength for high-boost applications
• Improved resistance to bore distortion under high combustion loads
• Superior ring seal for reliable performance at high RPM and pressure
• Essential foundation for big-power and race-level M178 builds

Service Details

• Precision Machining: CNC-machined aluminum block ready for sleeving
• Darton Sleeve Installation: Professional installation for optimal cylinder support
• Finish Honing: Torque-plate honing to ±0.0001" tolerance for perfect bore geometry
• High-Power Ready: Compatible with custom piston fitment and extreme builds

Notes

• Service Only: No engine block included; you may supply your own M178 or we can assist in sourcing
• Pistons, assembly, and short-block builds are not included unless quoted separately

Upgrade your Mercedes-AMG M178 block with Spool Performance Darton sleeves to create a rock-solid foundation capable of handling extreme power safely and reliably.

Note: 'New' merchandise may be returned for exchange or refund within 15 days from the date of shipment. 'New' merchandise must be unused and free from installation or mounting damage. Installation or modification of parts waives your right to returns, refunds, or exchanges.