RB20DE
RB20DE 2.0L Naturally Aspirated Inline-6
1998ccInline-6, DOHC, Naturally Aspirated
The RB20DE is the naturally aspirated 2.0-liter inline-six from the Nissan Skyline R32 GTS. While less powerful than its turbocharged siblings, the RB20DE shares the same iron block architecture as the RB26DETT and is a popular base for turbo conversions and engine swaps. Its smooth power delivery and lightweight construction make it a solid foundation for budget drift builds.
Nissan Skyline R32 GTS (1989–1994)Nissan Skyline R31 GTS (1986–1989)
Always verify torque specifications with your specific year/model OEM service manual before assembly. Values shown are reference specifications and may vary by model year, revision, or regional market.
1Cylinder Head
11 specifications · 6 locked
| Component | Value | Unit | Notes |
|---|---|---|---|
| 1Cylinder Head Bolts — Step 1 | 21 | lb-ft | Torque in sequence from center outward, cold engine |
| 2Cylinder Head Bolts — Step 2 | 72 | lb-ft | Torque in sequence |
| 3Cylinder Head Bolts — Step 3 (Loosen) | Loosen | ° | Fully loosen all bolts to 0 Nm |
| 4Cylinder Head Bolts — Step 4 | 18–25 | lb-ft | Re-torque in sequence |
| 5Cylinder Head Bolts — Step 5 | 69–76 | lb-ft | Final torque OR +85–95° angle turn |
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2Short Block
10 specifications · 5 locked
| Component | Value | Unit | Notes |
|---|---|---|---|
| Main Bearing Cap Bolts | 34–38 | lb-ft | Torque in 2–3 steps from center outward |
| 1Connecting Rod Bolts — Step 1 | 10–12 | lb-ft | Initial torque |
| 2Connecting Rod Bolts — Step 2 (Angle) | +60–65° | ° | Angle turn; oil bolt threads before assembly |
| Flywheel Bolts (M/T) | 105–112 | lb-ft | Apply thread locker; torque in cross pattern |
| Crank Pulley Bolt | 69–76 | lb-ft | Use flywheel lock tool |
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3Accessories
8 specifications · 3 locked
| Component | Value | Unit | Notes |
|---|---|---|---|
| Water Pump Bolts (M6) | 5–6 | lb-ft | |
| Water Pump Bolts (M8) | 12–15 | lb-ft | |
| Water Pump Bolts (M10) | 22–30 | lb-ft | |
| Belt Tensioner Mounting Nut | 32–43 | lb-ft | |
| Timing Belt Cover Bolts | 2–4 | lb-ft | |
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