fits model: Corvette, Nova, Chevelle. year: 1967–2028.

( Part Type: Head )
The A11-7 SET A13-7 Hump Corvette Nova Double 1967 Chevelle Heads with part number 28 3890462 and Z-28 designation, is an exquisite and high-performance upgrade for your classic muscle car. This set of heads is specifically designed for the iconic 1967 Chevelle, and the Corvette Nova, two iconic models that have stood the test of time in the world of classic American muscle cars.
The A11-7 heads are a part of the A-series castings, known for their performance-enhancing features. They feature a 220-degree intake and exhaust valve angle, which allows for a more efficient combustion process and improved engine performance. The valve size is also generous, with 2.02-inch intake and 1.60-inch exhaust valves, ensuring optimal flow of air and fuel into the engine.
The A13-7 heads, on the other hand, are a part of the L-series castings and are renowned for their superior strength and durability. They also feature a 220-degree intake and exhaust valve angle, and have larger valves, with 2.20-inch intake and 1.65-inch exhaust valves, which further enhances engine performance.
Both sets of heads come with a unique 'hump' design, which provides additional space for larger valves and combustion chambers, allowing for increased horsepower and torque. This hump design is particularly popular among enthusiasts and racers who are looking to squeeze every last bit of performance out of their engines.
The Z-28 designation refers to the high-performance package offered by Chevrolet for the 1967 Camaro and Corvette. This package included upgrades such as larger carburetors, stronger camshafts, and higher compression pistons, all of which required the use of more robust and larger-capacity heads like the A11-7 and A13-7.
In conclusion, the A11-7 SET A13-7 Hump Corvette Nova Double 1967 Chevelle Heads with part number 28 3890462 and Z-28 designation, is a must-have for any enthusiast or racer looking to upgrade the performance of their classic muscle car. Its performance-enhancing features, robust design, and iconic 'hump' design make it a standout choice in the world of classic car parts.
Pros of buying a 1967 Chevelle Z-28 with A11-7, A13-7, and Nova double heads, and a 283/389 engine (2830462 Z-28):1. Unique and Rare: This specific combination of engine and transmission is scarce, which makes the car a collector's item and an excellent investment for enthusiasts.
2. Powerful Performance: The 283/389 engine is known for its impressive power and torque, offering a thrilling driving experience.
3. History: The Z-28 was a high-performance option for the Chevelle, and this specific car has the coveted Nova double heads and A11-7 and A13-7 transmissions, which adds to its value and appeal.
Cons of buying a 1967 Chevelle Z-28 with A11-7, A13-7, and Nova double heads, and a 283/389 engine (2830462 Z-28):1. Cost: The car's rarity and desirability mean that it will likely come with a high price tag, making it a significant investment.
2. Maintenance: Older cars require regular maintenance and repairs, which can be costly. Additionally, finding parts and mechanics with expertise in this specific combination of engine and transmission may be challenging.
3. Roadworthiness: The car may not meet modern safety and emissions standards, and it may not be suitable for daily driving due to its age and performance capabilities.
Conclusion: A 1967 Chevelle Z-28 with A11-7, A13-7, and Nova double heads, and a 283/389 engine (2830462 Z-28) is a unique and valuable collectible that offers a thrilling driving experience. However, the high cost, potential maintenance issues, and lack of roadworthiness make it an investment that should only be considered by serious collectors and enthusiasts with a significant budget and the necessary resources to maintain and use the car appropriately.
Recommendation: If you are considering purchasing this car, it is essential to conduct thorough research and inspect the vehicle thoroughly to ensure that it is in good condition. Consider working with a knowledgeable mechanic to assess the car's overall health and potential maintenance needs. Additionally, consider the cost of insurance, registration, and any necessary modifications to make the car roadworthy. Ultimately, this car is a great addition to any collector's garage, but it is not suitable for everyday driving or a casual investment.
50 without hardened seats. Valves are with hardened seats.
For Corvette, Camry, z 28, Chevelle, Nova, and pass cars.
Shipping just a guide contact me for exact quote. Note shipping cost is per head.