Jaguar XK8 Engine —4.0 & 4.2 Litre AJ-V8 Supply, Rebuild & Fit Across the UK
The Jaguar XK8 is the car that brought the V8 engine back to the heart of the Jaguar grand tourer. Released to critical acclaim in 1996, it combined the elegance of the E-Type with the sophistication of modern engineering. From the original 4.0-litre units to the later 4.2-litre versions, every XK8 is defined by the character and surge of its AJ-V8 unit.
At Vogue Technics in Grays, UK, we specialise in Jaguar XK8 engines across both the 4.0 and 4.2 litre generations. We serve XK8 and XKR (X100 generation) owners across Grays, West Thurrock, London, Essex, Kent, Surrey, and the wider UK — providing the technical expertise required to keep these modern classics on the road.
Whether you are facing the well-documented Nikasil bore issue, timing chain tensioner failure, or a complete engine rebuild — we deliver the specialized mechanical attention your XK8 genuinely deserves.
Jaguar XK8 AJ-V8 Engine — Rebuild & Reconditioning — 4.0 & 4.2 Variants
The AJ-V8 is a sophisticated all-aluminium engine that requires precision during any rebuild work. We understand the technical evolution between the early 4.0 and the later 4.2-litre units and how to rectify their specific heritage weaknesses.
4.0 Litre AJ26/AJ27 — Early Heritage Rebuilds
We handle the delicate reconditioning of the 4.0-litre units, addressing the failure of the plastic timing chain tensioners and the Nikasil cylinder liner issues that affected production up until mid-2000. Every rebuild features updated, permanent engineering solutions.
Full AJ-V8 Model Support
- Jaguar XK8 4.0 AJ26/AJ27 — 1996 through 2002
- Jaguar XK8 4.2 AJ34 — 2002 through 2006
- XKR 4.0 & 4.2 Supercharged V8 Full Support
- Nikasil to Steel Bore specialists
- Updated Metal-Bodied Timing Tensioner installation
Common XK8 Engine Faults — What We Rectify
Jaguar XK8 problems are well documented. We use our historical knowledge to identify and solve these faults correctly before they lead to catastrophic V8 failure.
Timing, Nikasil & Bore Wear Specialist
Specialist diagnostics and repair for heritage XK8 engine faults.
- Failing plastic timing chain tensioners (AJ26/AJ27)
- Nikasil cylinder liner degradation and compression loss
- Valley hose coolant leaks leading to AJ-V8 overheating
- Variable Valve Timing (VVT) solenoid and sprocket rattle
- Oil pump and bearing wear on high-mileage 4.0 engines
- Restricted performance related to throttle body or management
Emergency XK8 V8 Hub
Fast-track diagnostics and engine fitting in Grays RM20.
Same-Day AJ-V8 Diagnosis
Know exactly why your XK8 has failed today.
Secure Nationwide Delivery
Tested XK8 engines delivered directly to your garage.
Heritage Warranty
Full written protection on all XK8 rebuilds.
Why Jaguar XK8 Owners Across the UK
Trust Vogue Technics in Grays
Jaguar AJ-V8 Specialists
We have rebuilt hundreds of early AJ-V8 units. We understand the specific tolerances and technical nuances across both the 4.0 and 4.2 litre.
Direct Supply Link
We maintain our own stock of reconditioned and tested used XK8 engines, meaning we are never reliant on external third-party suppliers.
Heritage Accountability
You receive a firm, written quote and a clear technical explanation before any work begins on your Jaguar heritage grand tourer.
Jaguar XK8 (X100 & X150 Generations) Engine Codes to Help You Find Your Vehicle
| Make | Model | Engine Code | Valves | Actual CC | Power Kw / Hp | Year Range | |
|---|---|---|---|---|---|---|---|
| Jaguar | XK8 (X100) | AJ26 | - | 3996 | 216 kW / 290 hp | 1996–1999 | Get Quote |
| Jaguar | XK8 (X100) | AJ27 | - | 3996 | 216 kW / 290 hp | 1999–2002 | Get Quote |
| Jaguar | XK8 (X100) | AJ27 | - | 4196 | 224 kW / 300 hp | 2002–2006 | Get Quote |
| Jaguar | XK8 (X150) | AJ34 | - | 4196 | 224 kW / 300 hp | 2006–2009 | Get Quote |
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FREQUENTLY ASKED QUESTIONS — JAGUAR XK8 ENGINE
Find answers to common questions about our engine rebuilds and replacements in Grays England.
The Jaguar XK8 is a modern classic that deserves a specialist AJ-V8 rebuild.
At Vogue Technics in Grays, that is precisely what we deliver. Call our specialist team today or submit an online enquiry for an honest, transparent quote and 24-hour diagnostic slot.
Find Your Jaguar Engine
Select your model below to view specific engine codes, technical specifications and fitting details for your vehicle.
XKR Engines
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XKR-S Engines
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XJ (X300 / X308) Engines
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XJ (X350 / X358) Engines
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XJ (X351) Engines
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F-TYPE V6 Engines
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F-TYPE V8 Engines
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F-TYPE SVR / R Engines
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F-PACE Engines
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E-PACE Engines
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XE Engines
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