New BMW 2.0T N20 Engine Long Block
The N20 Engine Long Block is a new replacement engine designed for BMW models equipped with the N20 turbocharged inline-4 platform. Built with precision machining and upgraded internal components, this long block provides a reliable, cost-effective solution for engine failure, timing chain damage, or high-mileage rebuilds—restoring original performance, efficiency, and drivability.
Key Features Include:
- Brand new 2.0L N20 long block engine assembly
- Turbocharged inline-4 aluminum engine architecture
- Designed to meet OEM specifications
- Improved durability for known N20 timing system concerns
- Compatible with multiple BMW models
-
Ideal for engine replacement, rebuilds, or export markets
Quality BMW N20 Engine Long Block Replacement
A long block engine refers to a fully assembled engine core that includes the engine block, crankshaft, pistons, connecting rods, cylinder head, camshafts, and valve train, while excluding external components such as the turbocharger, intake system, fuel injectors, alternator, and wiring harness.
This new N20 engine long block is designed to serve as a direct mechanical replacement for failed or worn BMW engines. It allows installers to reuse existing external components, reducing total replacement cost and ensuring compatibility with the vehicle’s original ECU calibration.
For workshops, distributors, and professional installers, N20 long block replacement strikes an ideal balance between completeness and flexibility. It is suitable for both single-vehicle repairs and batch procurement projects.
N20 Engine Specifications
| Specification | Details (N20B20 – 2.0L Primary Variant) | Notes / Variants |
|---|---|---|
| Engine Code | N20 (N20B20 main; N20B16 rare) | Turbocharged inline-4, successor to N52/N53 |
| Displacement | 1,997 cc (2.0 L) | N20B16: 1,592 cc (1.6 L) |
| Configuration | Inline-4, DOHC 16-valve | Aluminum block & head |
| Bore × Stroke | 84.0 mm × 90.1 mm | N20B16: 84.0 mm × 71.8 mm |
| Compression Ratio | 10.0:1 | N20B16: 9.0:1 |
| Fuel System | High-pressure direct injection (up to 200 bar) | TwinPower Turbo (single twin-scroll turbo) |
| Valvetrain | DOHC with Valvetronic (variable valve lift) + Double VANOS (variable valve timing) | Chain-driven timing |
| Forced Induction | Single twin-scroll turbocharger (Mitsubishi-sourced) | Air-to-air intercooler; max boost ~1.2 bar |
| Power Output (variants) | – 115 kW (154 hp) @ 5,000 rpm – 135 kW (181 hp) @ 5,000 rpm – 160 kW (215 hp) @ 5,500 rpm – 180 kW (241 hp) @ 5,000 rpm | Tune-dependent (e.g., 320i base → 328i high-output) |
| Torque Output (variants) | – 240 N⋅m (177 lb-ft) @ 1,250–4,500 rpm – 270 N⋅m (199 lb-ft) @ 1,250–4,500 rpm – 310 N⋅m (229 lb-ft) @ 1,350–4,800 rpm – 350 N⋅m (258 lb-ft) @ 1,250–4,800 rpm | Broad torque band; overboost in some tunes |
| Redline | 7,000 rpm | Typical across variants |
| Production Years | 2011–2017 | N20B16: 2013–2016 (select markets) |
| Key Technologies | Valvetronic, Double VANOS, direct injection, electric water pump, chain-driven oil pump | Designed for efficiency + performance |
| Common Applications | BMW 3 Series (F30 320i/328i), 5 Series (F10 520i/528i), X1 (E84), X3 (F25), Z4 (E89), 4 Series (F32 428i) | Various tunes by model/year/market |
N20 Long Block Applications and Compatibility
- BMW 3 Series: 320i, 328i (F30/F31)
- BMW 4 Series: 420i, 428i (F32/F36)
- BMW 5 Series: 520i, 525Li, 528i (F10)
- BMW X1: sDrive20i, xDrive28i (E84)
- BMW X3 / X4: xDrive20i, xDrive28i
- BMW 2 Series: 220i, 228i
- BMW Z4: sDrive20i, sDrive28i
Why Choose WideEngine
WideEngine delivers OEM-level engineering with enhancements for durability, such as reinforced timing components to combat the N20’s most reported failure mode. Each long block undergoes rigorous quality checks before shipping, backed by a comprehensive 1-year warranty for added buyer confidence.
Whether you’re a DIY BMW owner tackling an engine swap, an independent mechanic looking for reliable stock, or a tuner planning future mods, this product combines affordability, quick availability, and proven turbocharged performance. Restore your BMW’s signature driving dynamics without the premium price tag
Key Benefits of Choosing a NewN20 Engine Long Block Over Rebuilds
Opting for a complete new long block from WideEngine offers clear advantages: faster installation (bolt on your existing turbo, accessories, intake, and exhaust), no core charge hassles, and peace of mind with upgraded materials that resist common N20 weaknesses like brittle timing components.
Unlike piecemeal rebuilds that may still carry risks from old internals, this long block includes a refreshed cylinder block, head, forged pistons, crankshaft, and valvetrain—ready for your accessories.
It’s a cost-effective path to renewed drivability, often 50-70% less expensive than OEM complete engines, while avoiding labor-intensive tear-downs. Perfect for budget-savvy enthusiasts and repair shops handling high-volume BMW turbo four-cylinder jobs.
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