Code No. 21004-AN017
This high performance STEP2 package includes pistons and connecting rods designed for R35 GT-R with higher engine output.
This Forged Piston Kit + Connecting Rod STEP2 Set is a must to upgrade the engine performance using with the GT800 Racing Specs and/or STEP2 Camshaft.
Left: STEP2 Connecting rods / Right: STEP1 Connecting rods
Piston&Connecting rod set
POINT-1 Parts for Higher Engine Output
POINT-2 Factory Replacement Type
POINT-3 Higher Reliability by In-house Design & Production
HKS STEP2 | HKS STEP1 | Stock | |
Small-end dia. (mm) | φ23 | φ23 | φ23 |
Large-end dia. (mm) | φ59 | φ59 | φ59 |
Center distance (mm) | 165.1 | 165.1 | 165.1 |
Reference weight (g) | 734.6 | 722 | 724.6 |
Bolt | M9×1.0 | M9×1.0 | M9×1.0 |
Capable Torque (kgf-m) | 130 | 114.8 | 78.6 |
-NOTE-
Recess of STEP2 Piston is deeper than the STEP1.
However, the recess of the STEP1 piston has been changed to the same depth of the STEP2 as of the production on March 11, 2011.
All stock of the STEP1 on April 15 includes pistons with deeper recess.
Before | After | |
Mark on piston's back | [1] & [2] | [3] or later |
Label on package | before 090311 | after 090311 (D.M.Y.) |
●Parts
Product | Engine | Displacement (ml) |
Type | Boring/honing modification |
Full flow modification |
Code # | Price | Remark |
Forged piston kit | VR38DETT | 3799 | φ95.5-φ23 | Not required | Not required | 21003-AN009 | - | |
H-beam Connecting rods STEP2 |
VR38DETT | - | φ23 | - | - | 23004-AN006 | for standard stroke |
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