The complete cylinder head assembly with reference numbers 910570, 910670, and 910770 is designed for PSA-BMW EP6DT / N14B16 1.6L turbocharged gasoline engines. This aluminum alloy cylinder head features DOHC 16-valve configuration with high-pressure direct injection and dual variable valve timing (VVT) compatibility, delivering reliable performance for Peugeot 207, Citroen C4, Mini Cooper S, and related performance platforms.
Quick Specifications:
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Part Numbers: 910570 / 910670 / 910770 (PSA OEM format)
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Engine Codes: EP6DT / N14B16 (Prince Engine Family - PSA/BMW)
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Displacement: 1.6 L (1,598 cc)
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Configuration: Inline-4 DOHC 16V, Turbocharged & Intercooled
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Fuel System: Direct Injection (THP - Turbo High Pressure)
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Material: Aluminum Alloy
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Valve Configuration: DOHC 16-Valve (4 valves per cylinder)
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Valve Train: Dual VVT (intake/exhaust), hydraulic lifters
Performance Data:
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Power Output: 110-128 kW (150-175 HP) @ 6,000 RPM
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Torque: 240-260 Nm @ 1,400-4,500 RPM (with overboost)
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Compression Ratio: 10.5:1
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Boost Pressure: ~0.8-1.0 bar (wastegate-controlled)
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Emission Standard: Euro 4 / Euro 5
Complete Assembly Typically Includes:
✅ Cylinder head casting with integrated camshaft bearing bores
✅ Intake and exhaust valves with hardened seats (sodium-filled exhaust valves on select variants)
✅ Valve springs, retainers, and collets
✅ Camshafts (intake/exhaust with VVT phasers, supplier-dependent)
✅ Hydraulic valve lifters / tappets
✅ Valve stem seals (pre-installed on new assemblies)
✅ Camshaft oil seals and spark plug tube seals
✅ VVT solenoid mounting surfaces and oil control valves
✅ High-pressure fuel rail mounting bosses and injector sleeves
✅ Core plugs and basic mounting hardware
Note: Turbocharger, high-pressure fuel pump, fuel injectors, ignition coils, intake manifold, and exhaust manifold are typically sold separately.
Applications:
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Peugeot 207 GTI / RC / Sport (2006-2014, 1.6 THP variants)
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Peugeot 308 GTI / RCZ (1.6 THP variants)
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Citroen C4 Coupe / Picasso THP (2006-2015 variants)
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Citroen DS3 / DS4 THP (1.6 turbo variants)
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Mini Cooper S / John Cooper Works (R56/R57, N14B16 variants)
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BMW 118i / 120i (E87, Prince engine variants)
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Aftermarket performance rebuild & replacement projects