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HKS SR20 Connecting Rod Set 23004-an001

HKS Connecting Rod Set – SR20

$1,800.00

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The HKS Connecting Rod Set for SR20 engines is a high-performance upgrade designed to deliver increased strength, reliability, and power output. Manufactured from top-quality materials and featuring a robust H-beam design, these connecting rods are built to handle the demands of high-performance applications. Read more about the HKS SR20 Connecting Rod set below!

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SKU: 23004-AN001
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Description

The HKS Connecting Rod Set for SR20 engines is a high-performance upgrade designed to deliver increased strength, reliability, and power output. Manufactured from top-quality materials and featuring a robust H-beam design, these connecting rods are built to handle the demands of high-performance applications. Read more about the HKS SR20 Connecting Rod set below!

Fitment:

  • 1991 – 2002 SR20DET

Features:

  • Displacement of SR20 is increased from stock 1,998cc to 2,139 cc.
  • The larger displacement will increase torque. It enables to be used with large flow capacity turbines.
  • Step 2 87.0 is 2,164cc
  • 86,5 piston is considered as step1 of 2.2L kit. The surface treatment of Step 2 (87.0) is not done for Step1 to achieve the affordable price. This kit is also recommended for overhauling purpose. Feel the power of 2.2L.
  • Although it is Step1, it is forged pistons. Forged connecting rod and forged crankshaft are the same items as Step2 that means the maximum target horsepower is the same.
  • 87.0 piston is Step2. It has nickel plating, which is more durable against knocking, on the piston top and over coating, which reduces friction, is on skirt portion.
  • Made in Japan (HKS in house production)
  • What’s not to love about HKS SR20 Connecting Rod?

Selection of STEP1 (φ86.5) or STEP2 (φ87.0)

HKS 2.2LKIT STEP1 HKS 2.2LKIT STEP2
KIT price (w/o tax)
Piston Bore (mm) 86.5 87.0
Displacement (cc) 2,139 2,164
Compression ratio (ε) Gasket1.2mm 8.7 8.8
Gasket1.6mm 8.4 8.5
Gasket2.0mm 8.2 8.3
crown height 4.8 4.8
crown volume 15.3 15.3
Top coating – nickel plating
skirt coating – ober coating
Remark /oil ring: 2 piece /top ring: titanium coating
/oil ring: 2 piece
connecting rods same → Forged H-beam Connecting rods
crankshaft same → Forged full counter crankshaft

Using an used cylinder block

Due to deformation, with 0.5mm diameter boring and honing may not be able to have accurate circle bore. (Same for other engine models.)
In case bore is not accurate circle, pistons cannot be installed accurately. Therefore, φ87.0 STEP2 with 1.0mm boring and honing is recommended.
φ87.0 STEP2 has nickel plating, which is durable against knocking.

Using new or good condition cylinder block

φ86.5 is recommended so that φ87.0 can be used for the next overhauling.

For performance enhancement

φ87.0 in a new block is recommended. (Larger displacement will be better performance.)

Product Engine Capacity (ml) Type Boring・Honing modification Full flow modification Code No. Price Remarks
SR20DET 2.2L Kit　STEP1 SR20DET 2139 φ86.5-φ22 Required Not required 21004-AN015 Forged Piston Kit + H Beam Connecting Rod _ Forged Fully Counterweighted Crankshaft. Not Compatible with RNN14

Image(s) used for marketing purposes only. Actual product may vary.

Additional information

Weight 12 lbs
Dimensions 12 × 12 × 6 in

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