Introduction: Building a 500-HP 1967 Camaro

The 1967 Chevy Camaro is more than just a car—it’s a statement. As the first-generation Camaro, it arrived at the perfect moment in muscle car history, combining sleek styling with a lightweight platform that begged for power. While the original SS350 and SS396 models were respectable in their day, modern hot rodding has shown that 500 horsepower is not only possible but entirely practical with the right combination of upgrades. Achieving this milestone requires a systematic approach: you need to feed it, breathe into it, and make sure the rest of the car can handle the extra output. This guide breaks down the five most effective classic Chevy performance upgrades that will push your 1967 Camaro past the 500-hp mark while keeping it streetable, drivable, and reliable.

1. Engine Upgrade: The Heart of the Build

The easiest path to 500 horsepower is to start with a stronger foundation. The original small-block 327 or 350 can be built to this level, but the most popular modern route is a GM LS-based swap. Whether you choose a traditional small-block stroker or a Gen III/IV LS, the engine upgrade is the single biggest contributor to your horsepower goal.

Option A: The 383 Stroker Small-Block

A 383 stroker uses a 400 block crank with a 350 block to increase displacement from 5.7L to 6.3L. With forged internals, aluminum cylinder heads, and a hydraulic roller camshaft, a well-tuned 383 can easily produce 450–500 hp at the crank. Components like the Summit Racing Pro LS conversion kit or a Edelbrock Performer RPM intake manifold help maximize airflow. Expect to spend $8,000–$12,000 for a complete long-block from reputable machine shops.

Option B: LS Swap for Modern Power

LS engines (5.3L, 6.0L, or 6.2L) offer factory reliability with 400+ hp right out of the junkyard. With a mild cam, long-tube headers, and a tune, a 5.3L LS can hit 500 hp. The Holley LS swap kit makes the conversion straightforward, providing mounts, oil pan, and wiring harness. LS swaps also gain you fuel injection, which drastically improves drivability and cold starts. Cost for a complete LS swap including all accessories is typically $6,000–$15,000 depending on the donor engine and parts.

Option C: Adding a Supercharger

If you want to keep your original small-block but add big power, a centrifugal or roots-style supercharger is the fastest route. Kits like the Weiand 177 or Vortech V-3 Si can add 150–200 hp without changing the bottom end. However, to safely support 500 hp, you’ll need forged pistons, a stronger timing chain, and a boost-referenced fuel system. Supercharger kits run $3,500–$6,000, plus engine prep costs.

2. Performance Exhaust System: Let It Breathe

An engine is an air pump. If it can’t expel exhaust efficiently, it can’t make full power. A performance exhaust system is one of the highest-return upgrades for a 1967 Camaro, and it’s essential for reaching 500 hp.

Headers

The stock manifolds are restrictive. Swap them for long-tube headers with a 1 ¾-inch primary tube and 3-inch collector. Hedman Hedders or Hooker Super Competition headers are popular choices. Ceramic coating reduces underhood temperatures and improves exhaust flow. Expect a 20–30 hp gain on a built engine.

Exhaust Pipes and Mufflers

After the headers, run a full 3-inch mandrel-bent exhaust system to prevent bottlenecks. A setup with an X-pipe crossover balances the pulses and scavenges more power. For mufflers, Borla Pro XS or DynoMax Ultra Flo offer straight-through design with minimal backpressure. If you want the classic muscle car sound with modern efficiency, Flowmaster 40-series is still a solid choice. Complete header-back systems from Pypes or MagnaFlow cost $400–$900.

Stainless Steel vs. Aluminized

Stainless steel is more durable and resists corrosion, but it costs more. Aluminized steel is budget-friendly and works well if the car is garaged. For a 500-hp street car, we recommend stainless for longevity—especially if you drive in wet conditions or live near winter roads.

3. Suspension System: Taming the Power

Slapping 500 hp into a 1967 Camaro without upgrading the suspension is dangerous. The stock leaf springs, drum brakes, and rubber bushings are not designed for modern torque levels. A comprehensive suspension upgrade improves traction, stability, and driver confidence.

Front Suspension: Control Arms, Shocks, and Sway Bar

Replace the factory upper and lower control arms with tubular arms that have improved geometry and polyurethane bushings. Speedway Motors or QA1 offer complete front suspension kits. Add adjustable coilover shocks to fine-tune ride height and damping. A 1 ¼-inch front sway bar reduces body roll dramatically.

Rear Suspension: Leaf Springs and Traction Bars

The 1967 Camaro uses leaf springs. For drag racing, consider swapping to Cal-Trac bars or a ladder bar setup to prevent wheel hop. For street use, Hotchkis Performance leaf springs lowering the car and include anti-wrap brackets. Add a rear sway bar (1-inch or larger) for cornering. Shocks like Bilstein 5100 work well for a balanced ride.

Brakes: Stopping Power

With 500 hp, you need brakes that can match. Upgrade to front disc brakes from a later model Camaro or purchase a kit from Wilwood or Power Brake Booster. Four-piston calipers and 13-inch rotors will stop your car repeatedly without fade. Rear disc conversion kits are also available and highly recommended.

4. High-Performance Tires and Wheels

You can have all the horsepower in the world, but if your tires spin at the slightest throttle input, you won’t go anywhere fast. Proper tires are the final link to the pavement.

Street Performance Tires

For a street-driven 500-hp Camaro, look for ultra-high-performance summer tires in 275/40R17 or 295/35R18 sizes. Michelin Pilot Sport 4S and Continental ExtremeContact Sport offer excellent dry grip and decent wet traction. If you plan to track the car, consider Nitto NT05 or Hoosier Drag Radial for the rear.

Wheel Selection

Classic Rally wheels or Torq-Thrusts look period-correct, but modern alloys like Forgeline or American Racing in 17x9 or 18x10 fitment allow for wider tires. Roll the rear fender lips to accommodate 10-inch wide wheels. Backspacing is critical—consult fitment guides before ordering.

Drag Racing Considerations

If you’re heading to the strip, consider a set of Mickey Thompson ET Street R tires on a dedicated set of wheels. These soft-compound radials hook hard and are street-legal. Pair them with a line-lock for easier burnouts.

5. Fuel System Upgrades: Feed the Beast

A 500-hp engine can consume as much fuel as a large truck. If your fuel system can’t keep up, you’ll starve the engine under high load, risking detonation and engine damage. The stock mechanical pump and small fuel lines are inadequate.

Fuel Pump

Replace the stock mechanical pump with an electric pump. For carbureted engines, a Holley Blue pump or Aeromotive 11101 provides plenty of flow and pressure. For EFI swaps, use a high-pressure pump like the Walbro 255 LPH in-tank unit. Always mount the pump as low as possible and use a pre-filter to protect it.

Fuel Lines and Filters

Run -8 AN (or 1/2-inch) aluminum or stainless steel lines from the tank to the engine. Use a high-flow inline filter with replaceable elements. Return lines are mandatory for EFI systems. For carbureted engines, a return-style regulator helps maintain stable pressure and prevents vapor lock.

Carburetor vs. EFI

A Holley 750 cfm Ultra XP or Quick Fuel 750 carburetor is fine for 500 hp if properly tuned. But many builders now prefer EFI for better cold starts, altitude compensation, and consistency. Kits like the FI Tech Go Street or Holley Sniper 2 are simple bolt-on throttle body EFI systems. They require an electric pump and return line but offer drivability gains that justify the extra cost.

Bonus: Tuning and Dyno Time

No matter which upgrades you pick, a proper tune is essential to safely hit 500 hp. A session on a chassis dyno will reveal your true power numbers and air/fuel ratios. Hire a professional tuner who specializes in your engine type. For EFI, a laptop tuning session can unlock 20–30 additional hp simply by dialing in timing and fuel curves. For carburetors, jetting changes and air bleeds can be adjusted on the dyno to maximize torque across the rev range.

Don’t forget to upgrade your ignition system. A high-output coil, like the MSD Blaster 2, and a performance distributor will ensure reliable spark under high cylinder pressure. For LS engines, a proper tune with HP Tuners or SCT software is non-negotiable.

Putting It All Together

Building a 500-hp 1967 Camaro isn’t a weekend project—it requires careful planning, quality parts, and attention to detail. But the reward is a car that sounds like thunder, launches hard, and turns heads everywhere it goes. Start with a strong engine foundation, let it breathe with a high-flow exhaust, stabilize it with a modern suspension, plant the power with sticky tires, and feed it with a reliable fuel system. Each of these five upgrades works together—neglect one and you’ll bottleneck the others.

For further reading and part sourcing, check out resources like Summit Racing for components, MotorTrend’s Camaro build series for project inspiration, and Hotrodders forum for community advice. Whether you’re a seasoned mechanic or first-time builder, hitting 500 hp in your 1967 Camaro is an achievable goal—and the journey is just as satisfying as the destination.