What is the main advantage of using forged pistons over cast pistons?

Forged pistons are made from a stronger aluminum alloy that is heated and hammered into shape. This process creates a denser, more durable piston that can withstand higher cylinder pressures and temperatures compared to cast pistons, making them ideal for performance builds.

What does 'STEP2' indicate for this piston kit?

The 'STEP2' designation typically signifies that this kit is intended for more advanced or aggressive engine builds. It suggests the pistons are designed to handle higher power outputs and more demanding operating conditions than a standard or 'STEP1' kit might.

What components are included in this HKS forged piston kit?

This kit comes with the necessary components to rebuild the top end of your engine, including the forged pistons themselves, piston rings, wrist pins, and circlips.

HKS RB26DETT 2.8L Forged Piston Kit 21003-AN003

Name: HKS Forged Piston Kit RB26DETT 2.8L STEP2
Brand: HKS
SKU: hks-hks-forged-piston-kit-rb26dett-2-8l-step2-t14-113022
Price: 2278.66 USD
Availability: BackOrder

HKS Forged Piston Kit RB26DETT 2.8L STEP2

$2278.66

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

HKS RB26DETT 2.8L STEP2 forged piston kit.

Key Features

Fits RB26DETT engines with a 2.8L displacement increase.
Forged from strong aluminum alloy for enhanced durability.
STEP2 kit designed for high-performance engine builds.
Includes pistons, rings, wrist pins, and circlips.
Not CARB approved; cannot ship to California.

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Product Details

HKS is well-known for making high-performance engine parts, especially for Japanese performance vehicles. This forged piston kit is designed for the RB26DETT engine, specifically for builds that are increasing displacement to 2.8 liters. It's a STEP2 kit, meaning it's intended for more aggressive builds where improved strength and reliability are key.

These pistons are forged from a strong aluminum alloy, which makes them much more durable than cast pistons. This is crucial when you're pushing an engine beyond its stock limits, whether that's with increased boost pressure, higher RPMs, or both. The kit includes pistons, rings, wrist pins, and circlips, providing a complete set to rebuild the top end of your engine. The 2.8L displacement increase means these pistons are custom-sized to achieve that larger volume, requiring a corresponding bore and hone of the engine block.

When rebuilding an engine with these pistons, it's important to ensure all supporting components are up to the task. This includes the crankshaft, connecting rods, and the engine management system. Proper balancing of the rotating assembly is also critical for smooth operation and longevity at higher power levels. This kit is a solid choice for enthusiasts looking to build a robust RB26DETT for serious performance applications.