RB26DETT engines in the R32, R33, and R34 Skyline GT-R gain meaningful low-end torque and broader power delivery when displacement is increased while retaining strong reliability. The HKS 2.8L Kit STEP 1 87mm Full Kit (21004-AN014) raises capacity to 2771cc using 87mm forged pistons, a fully counterweighted crankshaft, and high-strength H-beam connecting rods. Recommended for pairing with the GTIII-RS turbo, this kit focuses on delivering enhanced torque at lower RPMs for quicker acceleration and a more responsive feel throughout the rev range, while supporting up to approximately 8500rpm and target outputs around 600 HP with proper supporting modifications.
HKS selects top-tier materials and applies advanced engineering to meet the rigors of high-level tuning. The nickel-coated pistons provide excellent anti-knocking characteristics, and the fully counterweighted crankshaft optimizes engine response. The H-beam rods (stock rods can also be used) deliver maximum strength and fatigue resistance through WPC shot-peening. Boring and honing of the block is required for installation, with no full flow modification needed, making this a practical yet powerful upgrade for serious builds.
At Terra Firma Automotive, we supply this genuine HKS 2.8L Kit STEP 1 87mm Full Kit as a premium engine build solution for RB26DETT owners who want more torque and power without sacrificing drivability. It transforms your engine into a larger, more capable unit while preserving the character that makes the Skyline GT-R iconic. For enthusiasts ready to elevate their R32, R33, or R34 performance, this HKS STEP 1 kit offers the quality, precision, and results that define serious RB26 tuning.
- HKS 2.8L Kit STEP 1 87mm Full Kit for RB26DETT
- Increases displacement to 2771cc with 87mm forged pistons
- Full counterweighted crankshaft for improved response
- High-strength H-beam connecting rods (stock rods optional)
- Nickel-coated pistons for superior anti-knocking properties
- Recommended for GTIII-RS turbo setups
- Target engine output approximately 600 HP
- Allowable RPM up to 8500rpm
- Ideal for overhauling from standard internal parts
- Boring and honing modification required
- Premium HKS engineering with proven real-world results
- Enhances low-to-mid range torque and overall power delivery
- Direct upgrade for R32, R33, and R34 GT-R engines
- Supports high-tuning levels with exceptional durability
- Trusted by RB26 enthusiasts for performance and reliability
- ⚠️ Emissions / California Legal Disclaimer – Off-Road / Competition Use Only: This product is intended for off-road, competition, and track use only. It is not legal for sale or use on public roads or highways in California (or any other CARB-adopting state). For more information Click Here.
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