( NEW OLD STOCK ) HKS SR20 2.2L Stroker Complete Kit Step 2

NEW OLD STOCK. STILL IN NEW-UNOPENED BOX. NO WARRANTY, RETURN / EXCHANGES, OR CANCELLATIONS

Part Number #21004-an001

Displacement of SR20 is increased from stock 1,998cc to 2,164cc.

The larger displacement will increase torque. It enables to be used with large flow capacity turbines.
*STEP2 φ87.0 is 2,164cc.

*φ87.0 piston is STEP2. It has nickel plating, which is more durable against knocking, on the piston top and ober coating, which reduces friction, is on skirt portion.

[ 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.)

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