1989-1994 Nissan Silvia S13 SR20DET Blacktop Engine 5-Speed Manual RWD Transmission Swap

Experience the legendary power of the iconic "Blacktop" with this JDM Nissan Silvia S13 SR20DET Engine and 5-Speed Manual RWD Transmission Swap. Widely regarded as the holy grail of drift and street-tuning platforms, the S13 Blacktop SR20DET is renowned for its immense aftermarket support, responsiveness, and bulletproof factory internal architecture. Unlike the later Redtop variant, this Blacktop unit features refined intake and fuel system configurations that provide superior throttle response and high-RPM stability. Sourced directly from low-mileage Japanese donor vehicles, this complete package includes the long-block, manual 5-speed RWD gearbox, and essential ancillaries—offering the perfect, turn-key foundation for your Silvia, 180SX, or S-chassis drift build.

Vehicle Specifications

• Year Range: 1989-1994 (S13 Chassis Era)

• Make & Model: Nissan Silvia / 180SX (S13)

• Engine Code: SR20DET (2.0L DOHC 16-Valve Inline-4 Turbocharged)

• Variant: Blacktop (Non-VVT / High-Compression Factory Spec)

• Transmission: 5-Speed Close-Ratio RWD Manual Gearbox

• Horsepower: Factory JDM Rated (~205hp / 203lb-ft)

• Origin: Japan (Genuine Japanese Domestic Market Performance Import)

• Condition: Premium Used Performance Import (Compression tested, leak-down verified, transmission gear-synch verified, and clean oil delivery)

Vehicle Fitments

• Direct Swap Fitment: Nissan 240SX (S13/S14/S15 Chassis), Nissan 180SX, Nissan Silvia (S13).

• Compatibility: Compatible with all S-chassis engine mounts and crossmember configurations.

• Conversion Note: For US-spec 240SX (KA24DE-equipped) chassis, this swap is the industry-standard upgrade. Installation requires a basic wiring harness "re-pin" to integrate with your existing dashboard plugs and the addition of a custom intercooler piping kit.

Included Parts

• Engine Assembly: Complete SR20DET Blacktop long-block with intake manifold, fuel rail, and injectors

• Transmission: 5-Speed Manual RWD gearbox assembly

• Turbocharging System: Factory T25 turbocharger and tubular exhaust manifold

• Ancillaries: Alternator, starter motor, ignition coil packs, and engine-side wiring harness

• Clutch Components: Factory clutch release fork and pivot ball assembly

Installation & Conversion Notes

• Fuel System: To maintain the factory performance profile of the Blacktop SR20DET, it is mandatory to use 93+ octane premium gasoline. We recommend installing a high-flow fuel pump (e.g., Walbro 255) to ensure consistent fuel delivery under boost.

• Cooling: The S13 platform benefits significantly from an upgraded high-capacity radiator and a dedicated front-mount intercooler (FMIC) kit to manage intake temperatures during sustained high-load driving.

• Maintenance: Prior to the initial startup, install a fresh water pump, new timing chain tensioner (highly recommended for SR20 longevity), and high-quality 10W-40 full-synthetic oil.

• Wiring: As this is a JDM-spec engine, we recommend identifying your chassis's harness pinout before final integration to ensure seamless signal transmission to your gauges and fuel pump relay.