The 1968 Camaro offered a compelling mix of accessible inline-six power and muscular V8 performance, shaping driver expectations for the entire muscle car era. Understanding each 1968 Camaro engine option helps enthusiasts choose restorations, upgrades, or acquisitions with clear performance goals.
Below you can compare the base six, dependable small-block V8s, and the high-horsepower big-block choices side by side, focusing on typical applications, horsepower ranges, and ideal use cases for 1968 model year buyers.
| Engine | Configuration | Typical Horsepower | Common Applications |
|---|---|---|---|
| 230 I6 | Inline-six, 230 cu in | 140 hp | Base and fleet models |
| 250 I6 | Inline-six, 250 cu in | 155–165 hp | Mid-level trims |
| 307 V8 | Small-block V8, 307 cu in | 200–210 hp | Standard V8 option |
| 327 V8 | Small-block V8, 327 cu in | 250–350 hp | Performance and sport models |
| 396 V8 | Big-block V8, 396 cu in | 325–375 hp | High-performance RS/SS packages |
1968 Camaro Base And Inline Six Options
The 1968 Camaro engine lineup began with the 230 cubic-inch inline-six, delivering dependable, efficient power for everyday driving needs. This base unit served fleet, economy, and commuter buyers who prioritized reliability over speed, and it formed the entry point for the model year lineup.
Above the 230 sat the 250 cubic-inch six, adding displacement and improved breathing to produce up to 165 hp in higher trim versions. While still far removed from V8 excitement, the 250 I6 offered a balanced mix of efficiency, refinement, and modest performance for mid-level Camaro buyers.
Both six-cylinder engines mated smoothly with three-speed manual or two-speed automatic transmissions, giving customers flexibility in how they intended to use their 1968 Camaro on city streets or rural roads. These inline-six options remain attractive for restorers seeking originality, simplicity of maintenance, and a smoother, quieter cruising experience than smaller displacement V8s can provide.
1968 Camaro Small Block V8 Performance
The 307 cubic-inch small-block V8 was the standard V8 offering in 1968, generating around 200 hp and pairing well with the standard three-speed manual for everyday driving. Drivers who wanted more without committing to a big-block found the 307 to be a reliable, street-friendly choice that preserved fuel economy and drivability.
For greater power, the 327 small-block became available in states with higher-octane fuel, producing outputs that could exceed 300 hp when equipped with high-lift cams and optional aluminum headers. Enthusiasts often view the 327 as the sweet spot in the 1968 Camaro engine options, combining manageable size with strong acceleration and tunability for both street and strip use.
Both the 307 and 327 accepted standard GM accessories, allowing relatively simple upgrades such as improved intake manifolds, dual exhaust, and performance ignition components that enhanced throttle response and top-end power without requiring major mechanical changes.
1968 Camaro Big Block And High Output Choices
The 396 cubic-inch big-block V8 defined high performance for 1968 Camaro SS and Rallye packages, delivering robust torque and muscular power curves suited for highway passing and serious driving. Available in various states of tune, the 396 could approach 400 hp in its most aggressive configurations, transforming the Camaro into a true performance machine.
When designed around the 396, factory combinations often included strengthened internals, larger carburetors, and improved valvetrain components, giving enthusiasts a reliable foundation for further modifications. Because the big-block added weight and complexity, many builders pair it with upgraded suspension, brakes, and tires to ensure balanced handling and safe engagement at higher speeds.
Although less common than the 327, the highest-output 396 variants remain sought after for original period correctness and driving excitement, offering a clear path to high horsepower that aligns closely with the expectations of serious 1968 Camaro buyers and restorers.
1968 Camaro Engine Compatibility And Handling Impact
Choosing among the 1968 Camaro engine options affects more than straight-line performance, influencing weight distribution, suspension load, and steering feel. The inline-six layout is lighter and more compact, helping preserve nimble handling, while the 327 and 396 introduce significant mass near the front axle that changes traction and balance during hard cornering.
Performance-minded drivers often pair the 327 with wider wheels and upgraded tires to manage the extra power, while the 396 typically benefits from a reinforced rear axle and improved cooling systems to handle sustained high-speed runs. These mechanical considerations make it important to match engine choice not only to desired horsepower but also to intended driving conditions and budget for chassis upgrades.
Key Takeaways And Recommendations
- Start with the 230 or 250 I6 if you prioritize reliability, low maintenance, and original driving dynamics.
- Choose the 307 or 327 small-block for a practical balance of everyday usability and spirited performance.
- Opt for the 396 big-block when pursuing strong acceleration and period-correct high-output power, provided you budget for chassis upgrades.
- Consider intended use, climate, and emissions regulations when deciding whether to keep original engines or install modern replacements.
- Match your chosen engine to appropriate suspension, braking, and driveline components for safe, predictable handling and longevity.
FAQ
Reader questions
What is the most common factory 327 cam setup in a 1968 Camaro?
Most factory 326 V8-equipped 1968 Camaros used a hydraulic flat-tappet cam with moderate lift and duration, striking a balance between low-end torque and high-RPM power suitable for street and occasional track use.
Can the 230 inline-six handle a mild small-block swap without extensive fabrication?
Yes, the 230 I6 engine bay can usually accommodate a 307 or 327 small-block with standard GM components, though driveshaft and crossmember adjustments are commonly needed to manage the increased weight and torque.
What kind of rear axle should I pair with a 396 V8 in a 1968 Camaro?
For the 396 big-block, a 12-bolt or heavy-duty 10-bolt rear axle with higher gear ratios is recommended to manage strong acceleration and maintain tire grip, especially if you plan regular spirited driving or occasional drag strip passes.
Are the 1968 Camaro engine options suitable for modern emissions compliance?
Original 1968 engines will not meet today’s emissions standards in most regions, but aftermarket EFI kits, modern cylinder heads, and catalytic converters can be fitted to achieve street legality while preserving the classic feel and sound of the period-correct powertrain.