
Buyer Resources
- 1990 Jaguar XJS Convertible
- 5.7L Naturally Aspirated LS1 V8
- Electronic Fuel Injection
- 3-Speed Automatic
- RWD
- Diamond Blue Metallic Exterior
- Navy Blue Interior
- Dark Blue Convertible Soft Top
- Burr Walnut Wood Veneer Interior Trim
- 15" Lattice Alloy Wheels
- Tempe Speed & Performance Engine Swap
The Jaguar XJS was one of the longest-running grand touring cars ever produced by the British marque, blending elegant styling, effortless cruising manners, and luxurious appointments. This 1990 Jaguar XJS Convertible takes that formula a step further by replacing the original powerplant with a modern 5.7L LS1 V8 installed by Tempe Speed & Performance. The result is a classic British convertible with the reliability, serviceability, and performance of proven American V8 power. Showing approximately 97,465 miles, this XJS presents an appealing combination of vintage Jaguar charm and modernized mechanicals. Finished in attractive Diamond Blue Metallic over a Navy Blue interior and equipped with a matching Dark Blue convertible top, it offers an ideal open-air touring experience backed by upgraded V8 performance.
Exterior and Interior
The exterior of this 1990 Jaguar XJS Convertible is finished in Diamond Blue Metallic, a sophisticated color that highlights the XJS’s distinctive long hood, flowing body lines, and elegant grand touring proportions. The power-operated Dark Blue convertible soft top complements the body color beautifully, while the factory-style 15-inch lattice alloy wheels preserve the car’s original upscale appearance. Signature Jaguar styling cues such as the elongated front end, subtle chrome accents, and low-slung stance make this convertible instantly recognizable as one of Britain’s most iconic luxury touring cars. The interior of this 1990 Jaguar XJS Convertible features a Navy Blue cabin trimmed with rich Burr Walnut wood veneer throughout the dashboard and center console. The combination of deep blue upholstery and genuine wood trim creates the traditional luxury atmosphere Jaguar was known for during this era. Comfortable seating, clear instrumentation, and a driver-focused layout make this XJS an enjoyable companion for long-distance touring, while the open-top configuration allows occupants to fully enjoy the car’s grand touring character.
Engine
Under the hood sits a 5.7L naturally aspirated LS1 V8 equipped with electronic fuel injection, replacing the factory Jaguar engine through a conversion completed by Tempe Speed & Performance. The LS1 is widely regarded as one of General Motors’ most durable and tunable V8 engines, offering strong torque, responsive performance, and extensive parts availability. Power is sent to the rear wheels through a 3-speed automatic transmission, maintaining the relaxed grand touring nature of the XJS while benefiting from the improved reliability and drivability of modern fuel-injected V8 power. This engine swap creates a unique blend of British luxury and American muscle, making the car easier to maintain and more enjoyable to drive than many stock examples.
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