Honda K20A/A2 Turbo Rebuild Kit with Spool X300 Extreme 300m Conrods and CP Forged Pistons

Honda K20A / K20A2 Turbo Forged Rebuild Kit

Built for serious boost and designed to handle the demands of modern turbocharged K-Series engines, the Spool Honda K20A / K20A2 Turbo Rebuild Kit combines premium components from CP-Carrillo, Spool, ACL and Cometic to provide the strength, reliability and performance required for high-horsepower street, drag and circuit applications.

Whether you're refreshing an existing turbo engine or building a new high-performance combination from the ground up, this package includes the essential components needed to create a strong and reliable bottom end.

Kit Includes

• CP-Carrillo Forged Pistons

• Spool X300 Extreme 300M I-Beam Conrods

• ACL Race Series Main Bearings

• ACL Race Series Big End Bearings

• Cometic MLS Multi-Layer Steel Head Gasket

CP-Carrillo Forged Pistons

CP-Carrillo pistons are trusted worldwide in high-performance and motorsport applications. Manufactured from premium forged aluminium, they are engineered to withstand extreme cylinder pressures and temperatures associated with turbocharged K-Series engines.

Features include:

• High-strength forged aluminium construction

• Performance ring package included

• Deep valve reliefs suitable for performance camshafts

• Precision CNC machined and weight matched

• Designed specifically for turbocharged applications

Piston Options

Spool X300 Extreme 300M Conrods

The Spool X300 Extreme series has been engineered for extreme horsepower and high-RPM applications. Manufactured from premium aerospace-grade 300M alloy steel, these rods provide exceptional tensile strength, fatigue resistance and durability compared to conventional 4340 connecting rods.

Features include:

• Premium 300M forged steel construction

• Two-piece precision forging design

• Dowelled caps for precise alignment

• Vacuum degassed material for maximum purity

• Quenched and heat treated

• Shot peened for improved fatigue resistance

• X-ray and sonic tested

• 100% Magnaflux inspected

• Weight matched sets to within ±1 gram

Conrod Bolt Options

Spool X300 conrods are supplied standard with genuine ARP 2000 fasteners and can be upgraded to suit more demanding applications:

• ARP 2000 (Standard)

• ARP L19 Upgrade

• ARP CA625+ Upgrade

ACL Race Series Bearings

ACL Race Series bearings are the preferred choice of engine builders worldwide, providing outstanding load capacity, durability and oil control for high-performance applications.

Cometic MLS Head Gasket

Included in every kit is a genuine Cometic MLS (Multi-Layer Steel) head gasket, providing superior sealing performance for boosted applications and helping maintain reliable combustion sealing under extreme cylinder pressures.

Built for Boost

From high-performance street cars to dedicated race builds, this package combines proven components from some of the most respected names in the industry to provide a strong foundation for your turbocharged Honda K20A or K20A2 engine build.