For those seeking a unique blend of SUV practicality and supercar performance, a rare opportunity has emerged. A 1999 Chevrolet Suburban, modified by the renowned Lingenfelter Performance, is currently listed for sale, boasting a massive 9.9-liter V8 engine under the hood. This isn’t your average family hauler; this Suburban is a testament to automotive ingenuity and a nod to a fascinating chapter in GM’s history.
Originally conceived at the behest of the Saudi government for a high-speed pursuit vehicle, this project saw standard 7.4-liter Chevrolet Suburban 2500 models undergo a remarkable transformation. Lingenfelter Performance, based in Michigan, was tasked with injecting serious power into these SUVs. The result was the installation of a colossal 605 cubic inch (9.9 liter) marine-derived V8 engine, pushing the boundaries of what a Suburban could be. This conversion, costing approximately $38,000 in the late 90s (roughly $57,000 in today’s dollars), involved significant parts upgrades, custom fabrication, and meticulous reassembly.
The specifications were nothing short of astounding for the time. The 9.9-liter V8 churned out a formidable 550 horsepower and a staggering 705 lb-ft of torque. Period reviews, such as one from Car and Driver, highlighted the astonishing performance, clocking a 0-60 mph time of just 4.6 seconds. This level of acceleration was unheard of for a vehicle of the Suburban’s size and weight, placing it squarely in supercar territory in terms of straight-line speed.
This particular 1999 Chevrolet Suburban, currently for sale at Millennium Motors in Monroe, Washington, presents itself in seemingly decent cosmetic condition, with an engine bay that appears correct for the Lingenfelter conversion. While detailed history of this specific vehicle remains somewhat elusive, it’s understood that these conversions were offered not only to government entities but also to private buyers who sought extreme performance in a discreet package.
Externally, the Lingenfelter Suburban retained the understated appearance of a standard Chevrolet Suburban 2500 4×4. The modifications were primarily focused on the powertrain, making it a true “sleeper” vehicle. Apart from potentially larger exhaust tailpipes, which are not clearly visible in the provided photos, there were few visual cues to hint at the monstrous power lurking beneath. The “Pewter Metallic” paint, a color also available on Corvettes of that era, further contributes to its unassuming aesthetic. The bodywork appears straight and the paint reflective in the images, suggesting well-maintained exterior cosmetics.
Stepping inside, the cabin reflects the mileage indicated on the odometer, around 81,000 miles. Considering Lingenfelter’s estimated fuel consumption of 8 MPG combined, this Suburban has likely consumed a significant amount of fuel in its lifetime. The interior largely remains stock, with the exception of an aftermarket head unit (missing its faceplate in the photos) and what appears to be a trailer brake module, hinting at its potential for towing despite its performance focus.
The cargo capacity remains a cavernous 149.5 cubic feet, a hallmark of the Suburban. The double-door rear configuration is noted as being specific to the 2500 models, differentiating it from the 1500 series which featured a horizontally split tailgate. This reinforces the heavy-duty nature of this performance SUV.
Under the hood, the centerpiece of this incredible machine is revealed: the 9.9-liter pushrod V8 engine. Originally designed for marine applications by Mercury Marine, this powerplant was expertly adapted for automotive use by Lingenfelter. Key components included a long-runner intake manifold from Mercury Marine, an exhaust system borrowed from a Chevrolet 454SS pickup, and a robustly upgraded transmission to handle the immense power and torque.
Car and Driver’s testing indicated a 0-60 mph time of 4.7 seconds in rear-wheel drive, dropping to 4.6 seconds with four-wheel drive engaged, showcasing the impressive traction and power delivery. While the engine bay exhibits some surface rust on components like the intake airbox, a pre-purchase inspection would be a prudent step for any prospective buyer. Owning this piece of automotive history would undoubtedly require a substantial fuel budget and a consideration for upgraded braking components given its performance capabilities. This 1999 Lingenfelter Suburban represents a rare opportunity to own a truly unique and powerful SUV, blending the practicality of a Suburban with the exhilarating performance of a sports car. For those interested in acquiring this exceptional vehicle, further details and purchase information can be found at Millennium Motors in Monroe, Washington.
