HKS HKS Step 1 Stroker Kit 4G63 Evo 8/9 85.5mm Bore 96 Stroke

1. Comparison for Step 1 HKS VS Stock:

- Cylinder Layout : L4 VS L4

- Bore x Stroke: 85.5 x 96 VS 85 x 88

- Total Displacement: 2204.7cc VS 1997.4cc

- Capacity/ Cylinder: 551.2cc VS 499.4cc

- Compression Ratio: 

9.1 t= 1mm/ 9.0 t= 1.2 mm/ 8.7 t= 1.6mm VS 8.8 t= 1.2mm

2. This excellence HKS Stroker Kits inclusive of: 

-Forged aluminum pistons

-Complete sets including piston rings

-Wrist pins

-Retaining clips

-Connecting rods and crankshaft

3. All components are designed to function perfectly to increase the displacement and improve horsepower.

4. Output/ in house Internal Engine Bench: 500 PS @ 7000 RPM. No performance drop.

5. Piston: Molybdenum coated 0.5mm diameter oversize from stock for better initial-fitness and friction reduction.

6. Crankshaft: Newly design lighter HKS crankshaft for better engine response.

7. Connecting rods: Newly design H- Beam connecting rods for 4G63.

8. Other machining: Cylinder Boring and Honing required for 0.5mm oversized pistons. No block clearance modifications necessary for larger stroke crank. 

HKS HKS Step 1 Stroker Kit 4G63 Evo 8/9 85.5mm Bore 96 Stroke