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Complete Guide to Popular JDM Engine Swaps
Engine swaps are the ultimate performance upgrade. In 2025, JDM engine swaps continue to dominate the tuning scene with legendary powerplants like the 2JZ-GTE, RB26DETT, K20A, and SR20DET. This guide covers planning, sourcing, and completing successful JDM engine swap projects.
Most Popular JDM Engine Swaps
Toyota 2JZ-GTE (Supra Twin Turbo) - The king of JDM engines. Stock internals handle 600-800hp. Popular swaps: Nissan 240SX, Lexus IS300. Engine cost: ¥400,000-¥700,000.
Nissan RB26DETT (GT-R Skyline) - Twin-turbo inline-6 legend. Single turbo builds reach 800-1000hp. Popular swaps: Nissan 240SX S13/S14, Silvia S15, Datsun 240Z. Engine: ¥500,000-¥900,000.
Honda K20A Type R - VTEC screaming to 8,500rpm. Turbo builds reach 400-600hp. Popular swaps: Honda Civic EG/EK, Acura Integra. Engine: ¥200,000-¥400,000.
Nissan SR20DET (Silvia/180SX) - Affordable turbo 4-cylinder. Easily tuned to 350-400hp. Engine: ¥150,000-¥350,000.
Top Engine Swap Shops & Brands in Japan
- Top Secret (Tokyo): Legendary for 2JZ and RB swaps
- HKS Technical Factory: Complete swap services with tuning
- Tomei Powered: Nissan engine swap experts
Supporting Parts for Your Engine Swap
Complete your build with proven JDM performance parts: HKS for ECU management and turbos, Tomei Powered for engine internals, NISMO for drivetrain and LSD, TEIN or HKS for suspension to handle your new power.
Shop Authentic JDM Engine Parts — Direct from Japan
Tomei, HKS & more. Tracked worldwide shipping.
Tomei PoweredHKS PartsNISMOTEIN SuspensionView All JDM Collections
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