When the Goodguys Rod and Custom Association introduced autocross events, Mark Allen saw an opportunity to transform his 1967 Camaro RS/SS into a competitive racer. Alongside his wife, Jenny, Mark has owned this classic car for nearly three decades, making it a fixture on autocross tracks for the past fifteen years.
From Dream to Reality
Mark Allen’s love for cars started early with his first vehicle, a ’67 El Camino. When he and Jenny married, they attended a car show on their honeymoon and dreamed of owning a 1967 Camaro RS/SS. Years later, they fulfilled this dream, purchasing a Marina Blue model with a 350 engine, Muncie M21 four-speed transmission, and 12-bolt GM rear end. The car remained largely original until the Allens decided to upgrade.
The Heart of the Beast: LT4 Crate Engine
Today, the Camaro is powered by an LT4 crate engine from Chevrolet Performance, chosen specifically for autocross. The LT4 engine, with its Eaton R1740 TVS supercharger, produces an impressive 640 horsepower and 630 lb.-ft. of torque in Mark’s early dry sump version. The engine’s robust design ensures it can handle the rigors of autocross, withstanding the constant throttle abuse.
Custom Modifications for Performance
Engine and Drivetrain
- Engine: 6.2L LT4 crate engine
- Power Output: 640 horsepower, 630 lb.-ft. of torque
- Supercharger: Eaton R1740 TVS, spinning up to 20,000 rpm
- Transmission: TREMEC six-speed prepped by D&D Performance
- Clutches: Four dual-disc clutches
Suspension and Brakes
- Front Subframe: Detroit Speed front subframe
- Rear Suspension: Leaf spring setup with welded subframe connectors
- Brakes: Baer brakes with dual-piston front and single-piston rear, electrically assisted hydronic system
- Shocks: Front and rear Ridetech shocks
Wheels and Tires
- Front Wheels: 18 x 9 ½ inches, Falken tires 245/30
- Rear Wheels: 19 x 12 inches, Falken tires 315/25
Exterior and Interior
- Paint: House of Kolors True Blue Pearl with custom stripe
- Interior: 1968 console gauge cluster, modified center console, Alcantara finish, Unique Upholstery in Gilbert, Arizona
Community and Camaraderie
Mark Allen, a retired construction industry professional from Gilbert, Arizona, has a rich history in motorsports, from drag racing to off-road truck co-driving. Today, autocross provides a competitive outlet, but the camaraderie with fellow enthusiasts is what he values most. He refers to the Goodguys community as his “autocross family.”
Racing for a Cause
Beyond racing, Allen supports Racing for Warriors, a program offering recreational therapy for combat veterans. This initiative helps veterans experiencing PTSD by providing adrenaline-filled experiences on the track, allowing them to confront and overcome emotional challenges.
Mark Allen’s 1967 Camaro RS/SS is more than a car—it’s a testament to passion, perseverance, and the power of community. With its LT4 crate engine and meticulous modifications, this Camaro not only competes but also serves as a beacon of inspiration and healing.
Whether it’s blazing down the autocross track or fostering friendships, this iconic Camaro proves that cars truly can change lives.
Source: Chevrolet/The-Block
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