Description
HKS FA24 2.5L High Comp Step 2 Piston Full Kit
Piston Kit
- To prevent the breakage of the second land, the material employs A2618 material, which has high-temperature strength, to achieve a low pin height that eliminates the need for making any service holes.
- 2-layer molybdenum coated to help reduce friction.
- The cavity on the piston head optimizes the atomization of direct injection.
- 3D Piston crown shape sustains tumble flow.
- The uneven shape of the piston head allows using the high-lift camshaft.
Connecting Rod
STEP2
- Provide a dedicated high-strengthened billet connecting rod for the long stroke. Any clearance modifications to the stock engine block are unnecessary because of a specially designed crank pin.
- Optimized wall thickness based on strength analysis. Achieved approximately 30% increase in strength, which minimizing weight gain.
- I-beam shape was selected to increase the buckling strength.
- Manufacturing by the billet to makes it possible to ideal thickness shape and eliminate the damaged starting point on the surface. The surface is also exposed to a powerful shot penning process to improve fatigue strength.
- Optimum heat treatment is performed on the chrome-molybdenum steel to enhance its strength and toughness.
Crankshaft
- Crankshaft uses a forged material.
- It has a dedicated pin journal size. Combination use of the HKS connecting rod is recommended.
What’s Included
- Forged piston kit
- Billet I-beam connecting rod
- Forged crankshaft
HKS recommends using STEP 2 for a vehicle with a turbo that tends to be generated high torque.
** Not CARB Legal**
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