HKS 23011-AT011 G16E 1.75L Low-Comp Step 3 Closed-Deck Short Block

The HKS 23011-AT011 is a fully assembled G16E 1.75L Low-Compression Step 3 Closed-Deck Short Block, engineered for extreme high-performance and forced induction applications. Built on the G16E-GTS engine architecture, this short block features a closed-deck conversion and HKS's BCD Piston Full Kit G16E 1.75L LOW-COMP STEP3, making it an ideal foundation for high-boost builds demanding exceptional rigidity and durability.

Key Features:

• Closed-Deck Block: The cylinder block is converted to a closed-deck configuration to suppress cylinder deformation and withstand high combustion pressures, with water jackets optimized to maintain proper cooling flow
• BCD Pistons: Bridge Construction Design (BCD) pistons achieve an ideal balance of lightweight performance and high structural rigidity
• Machined I-Beam STEP3 Connecting Rods: 25% stronger than OEM rods, significantly increasing allowable torque capacity
• Chrome Steel Forged Crankshaft: Features reduced inertia weight via optimized counterweight positioning for improved high-RPM response
• Precision Deck Surface Grinding: Deck surface is precision-ground to improve flatness and sealing; boring is performed to improve cylinder cylindricity
• Cylinder No. 2 Cooling Water Jacket: An additional cooling water jacket is added to the No. 2 cylinder, designed for use with the HKS Grommet Head Gasket SUPER COOLING Pro
• Gallery Cleaning: Main oil gallery is thoroughly cleaned after all machining operations to reduce the risk of contamination-related failures

Important Notes:

• Stock balance shafts are not compatible with this closed-deck short block
• Not CARB compliant — not legal for sale or use in California
• HKS Racing Pro 10W50 engine oil is strongly recommended

The HKS 23011-AT011 short block represents the pinnacle of HKS engine building technology, designed for builders and tuners who demand a proven, race-ready bottom end capable of supporting aggressive power targets on the G16E-GTS platform.