Sports & Classics of Monterey

12-14 August 2010


Previous Next

Lot 109

2004 Kirkham Motorsports Shelby Cobra 427 S/C Replica

  • Chassis no. KC4FNLC0373

Sold for $82,500

Est. 600 hp, 468 cu. in. aluminum alloy V8, Vortech V-2 trim supercharger, Demon down leg carburetor, five-speed Tremec 600 manual transmission, stainless steel chassis, billet aluminum fully independent suspension with coil over shocks, Wilwood disc brakes, Wheelbase: 90"

- Created by the firm that supplies Shelby Automotive with Cobra bodies

- Sophisticated Cobra-style performance with added modern engineering

- 600 hp supercharged V8 and less than 500 miles from new

When Carroll Shelby first shoehorned a Ford V8 under the hood of an otherwise modest, albeit shapely, AC Ace, he set the sports car world on fire. Decades on, numerous replicas of the Cobra's iconic shape have been created, but most have unfortunately given the kit car world a bad name.

Working directly with Shelby Automotive, Kirkham Motorsports is trusted by the legendary builder to supply the company with bodies for its CSX Shelby Cobra continuation cars. Yet some bodies are subtly enhanced to become the basis for a unique and highly sophisticated take on the Cobra theme. Built to extraordinarily high tolerances, the Kirkham vehicles reflect such an attention to detail that Carroll Shelby himself owns an example and Peter Brock says that Kirkham does “things right.”

Kirkham's KMS 427 S/C starts with a hand-built filed or polished finish aluminum body riveted to a steel sub-frame and then slides a big block Shelby Signature aluminum V8 under the hood. Breathing through a fiberglass hood scoop, the big V8 then receives a polished Vortech V-2 supercharger with a customized Shelby carburetor enclosure.

Boasting a high-performance Demon down leg carburetor, a programmable MSD ignition, a Pro Billet Distributor, custom grind solid roller cam and lifters and polished and flow-tested heads, the engine cranks out more than 600 hp and 600 lb-ft. of torque at 5,500 rpm. With its low weight and stiff springs, the KMS 427 S/C is a force to be reckoned with on a track. More than just a high performance machine, the hand-crafted sports car is built to an exceedingly high standard evident in just one glance under its hood.

The 2004 KMS 427 S/C is being offered here by its original owner. With less than 500 miles from new, the sports car is in as-new condition throughout. It benefits from a number of factory upgrades, including the optional polished aluminum body, subtle matte-finish brakes, and a five-speed Tremec 600 manual transmission. One of the priciest single upgrades on this car is the stainless steel chassis, which this car’s owner specifically requested from new. A street legal high performance machine, the KMS 427 S/C is ready to be enjoyed by any discerning high performance enthusiast with an appreciation for fanatical attention to detail and engineering.


Please note that this vehicle has not gone through the California emission testing procedure for "Special Construction Vehicles" and therefore must be sold to a California dealer or out of state resident.

Please contact our exclusive automotive transportation partner, Reliable Carriers, for a shipping quote or any other information on the transport of this vehicle.

Alexander Weaver

+1 864 313 6844
California, United States

Alexander Weaver joined RM Sotheby’s in 2011 as a Car Specialist after graduating from Furman University in South Carolina. Born... read more

Augustin Sabatié-Garat

+44 (0) 74 1511 4179
United Kingdom

Augustin Sabatié-Garat joined RM Europe in 2012 as a Car Specialist after more than a decade in the collector car hobby. Gradua... read more

Barney Ruprecht

+1 203 912 7168
Ontario, Canada

Barney’s interest in classic cars began at an early age after being introduced to his father’s all-original 1965 Porsche 911. Barney l... read more

David Swig

+1 415 302 2247
California, United States

David Swig joined RM Sotheby’s West Coast division as a Car Specialist in May 2015. David is a life-long automobile enthusi... read more

Don Rose

+1 617 513 0388
United States

Don joined RM in 2006 after several years of professionally trading sports and classic cars, and after earning a reputation as a noted... read more

Donnie Gould

+1 954 566 2209
Florida, United States

Donnie Gould joined the RM team in 2002 as a partner and Car Specialist after more than two decades in the vintage automobile auction ... read more

Gord Duff

+1 519 352 4575
Ontario, Canada

Gord Duff began his journey with RM Sotheby’s in 1998. Since then, he has gained an intimate knowledge of a variety of marques a... read more

Jake Auerbach

+1 310 559 4575
California, United States

Jake Auerbach got his start in the automotive industry at an early age, spending his summers during high school working at a classic c... read more

Kurt Forry

+1 717 623 1638
California, United States

Having worked for Bonhams’ Automobilia department for over 10 years, Kurt Forry joined RM Sotheby’s with more than a decad... read more

Matt Malamut

+1 805 231 6410
California, United States

A long-time car enthusiast and Southern California native, Matt studied Automotive Technology at San Diego Miramar College and complet... read more

Michael Squire

+44 (0) 20 7851 7070
United Kingdom

Michael Squire joined RM Sotheby’s European Division in the summer of 2016. He comes to RM with a prestigious racing background ... read more

Mike Fairbairn

+1 519 352 4575
Ontario, Canada

As one of the three founding partners of RM Sotheby’s, Mike has a long-standing interest in the classic car industry. Graduating... read more

Oliver Camelin

+44 (0) 75 0110 7447
United Kingdom

With an extensive background in exotic sports car history and sales, a particular passion for American curves, and fluency in three la... read more

Paul Darvill

+44 (0) 20 7851 7070
United Kingdom

Paul Darvill joined the RM Sotheby’s European team at the beginning of 2015. Paul holds a degree in French and Politics from the... read more

Pete Fisher

+1 519 784 9300
Ontario, Canada

Pete Fisher was first introduced to antique cars in high school, working for Classic Coachworks in his hometown of Blenheim, Ontario. ... read more

Shelby Myers

+1 310 559 4575
California, United States

Shelby Myers grew up with the classic car industry infused into every aspect of his life. He had the unique opportunity to watch the R... read more

Tonnie Van der Velden

+31 653 84 19 60
United Kingdom

Tonnie Van der Velden joined RM Sotheby’s European division in September 2015 as a Car Specialist. A lifelong enthusiast, Tonnie... read more