HKS Forged Piston Kit and Connection Rod Set Step 1 - R35

Brand: HKS
Product: Forged Piston Kit and Connection Rod Set Step 1 - R35
Part Number: 21004-AN016

SPECIFICATIONS:
Included:
- Pistons Kit
- Connection Rod Kit
- Piston Pins and Piston rings Set

Bore x stroke (mm): 95.5 x 88.4
Compression Rate (e): 8.7 (with HKS 0.8 Head Gasket)
Displacement (cc): 3799

- Piston -
Bore Diameter (mm): 95.5
Compression Height (mm): 34.30
Concave Portion on Top (cc): 8.01
Material: Forged (No Holow Channel)
Reference Weight (g): 420

- Piston -
Size (mm): 23x60

- Rings -
Top B Size (mm): 1.2
Sec B Size (mm): 1.2
Oil B Size (mm): 2.0 (3 Pieces Type)

- Conrod -
Small-end dia. (mm): 23
Large-end dia. (mm): 59
Center Distance (mm): 165.1
Reference Weight (g): 722.0
Bolt: M9x1.0
Capable torque: 114.8

PRODUCT NOTES:
- Honing Modification: Not required
- Full-Flow Modification: Not required

FEATURES:
High Output Part:
- The bore sizes of both Piston Kit and Connecting Rod Set are the same as the factory sizes so they can be replaced with the factory parts.
- To avoid piston land breakage, HKS pistons are made with forged material instead of casting like the factory pistons.
- It's recommended to use with other items of the GT800 Package.
- In-house test at 900PS confirmed the durability and safety.
- The setting range is widened by reducing the pressure rate from 9.0 factory rate to 8.7. This is effective to increase the engine output using the aluminum block specs and/or bigger cylinder bore.

Factory Replacement Type:
- The weight of the connecting rod is the same as the factory since the affect of the V6 engines peculiar vibration should be considered.
- he piston is light-weighted to approximately 25g.
- The weight is optimized to install with the factory crankshaft so it is not necessary to use a dummy weight to balance.

Expertise on the Factory Parts & Reliable In-House Products:
- The 3D profile for the piston was chosen from various profile tests.
- The forged material exclusively for HKS and the optimal piston shape are utilized.
- Wit the results of our analysis on the factory connecting rod, the durability is improved by approx 46% maintaining the balance.
- All parts are MADE IN JAPAN (in-house product).