HKS Forged Piston Kit 86.5mm 2.2L Stroker Kit Only!

Con'rod is the weak point of 4B11 engine. Upgrading of con'rod is required for performance enhancement.

HKS developed "Forged I-Beam" connecting rod, which is "Strong" and "Affordable".

POINT-1
"Strong and affordable" is the concept of the "Forged I-Beam" Con'rod

• I-Beam was selected for 4B11. It is strong and affordable with "high grade chromium molybdenum steel", "carburizing heat treatment" and "fracture splitting manufacturing for the big end".
• Although it looks like stock part, it is strong enough for high performance tuning vehicles.

• As explained above, H-Beam and I-Beam have their own merits and demerits.

POINT-2

Fracture splitting manufacturing method, which has high connection rigidity, for the big end

• Fracture splitting has higher connection rigidity than normal knock pin type as the contact surfaces are more since they are uneven.
• Although the looking is not good, since they are connected with uneven surfaces, it has great rigidity as shown in the pictures below.

POINT-3 Strength for more than 500ps

• Tested on an engine bench with GT3240 Full Turbine Kit without any problem.
• HKS Forged Piston (21003-AM003) is recommended.

HKS put all their know-how knowledge into engine parts from the data they have acquired from the drag race, round race, time attack and drift race. The HKS team provide Engine tuning ranging from Camshafts, Pulleys, Pistons and Rods to Timing Belts, Pump Upgrades and even Head Gaskets. The concept behind HKS engine products was to produce something the customers would truly be happy with.