fits model: Gto. make: Pontiac. year: 1964–1972.

( Manufacturer Part Number: 8621677 ), ( Part Type: Flywheel ), ( Country/region Of Manufacture: United States ), ( Years: 1964 1965 1966 1967 1968 1969 1970 1971 1972 )
The 1964-72 Pontiac GTO 166 Cast Iron Flywheel (Part Number: 8621677) is a vital component in the powertrain of your classic muscle car. This flywheel is meticulously crafted from high-quality cast iron, ensuring durability and reliability over time.
With a diameter of 16.6 inches, this flywheel provides ample surface area for the clutch to engage effectively. The 8621677 flywheel is designed to be a direct replacement for original GTO models, ensuring a seamless fit and operation in your vehicle.
The flywheel's surface is machined to precise specifications, ensuring a smooth engagement with the clutch disc. This results in a more responsive and consistent driving experience, as well as reducing wear and tear on both the flywheel and the clutch.
The 1964-72 Pontiac GTO 166 Cast Iron Flywheel is also heat-treated for added strength and longevity. This process hardens the metal, making it more resistant to the high temperatures and intense forces generated by your car's engine.
In addition, this flywheel features a bolt pattern of 5-on-4 1/2, which is standard for many Pontiac vehicles of this era. This ensures that you can easily install the flywheel in your GTO without the need for any modifications.
In conclusion, the 1964-72 Pontiac GTO 166 Cast Iron Flywheel (Part Number: 8621677) is a high-quality, reliable, and durable replacement part for your classic muscle car. Its precise machining, heat treatment, and standard bolt pattern make it an excellent choice for restoring or maintaining the performance of your GTO.
Pros of buying a 1964-72 Pontiac GTO with a 166 cast iron flywheel (part number 8621677):1. Authenticity: This flywheel is an original part for the classic GTO, which can add to the vehicle's overall value and historical significance.
2. Durability: Cast iron flywheels are known for their durability and strength, which can help ensure reliable operation of the vehicle's engine.
3. Availability: The 166 cast iron flywheel is a commonly available part, which can make it easier to find and purchase if needed.
4. Compatibility: This flywheel is specifically designed for the 1964-72 Pontiac GTO, which means it should fit and function properly in the vehicle.
Cons of buying a 1964-72 Pontiac GTO with a 166 cast iron flywheel (part number 8621677):1. Weight: Cast iron flywheels are heavier than their aluminum counterparts, which can result in less responsive acceleration and increased fuel consumption.
2. Maintenance: Cast iron flywheels require regular maintenance, including lubrication and inspection to ensure proper operation.
3. Cost: Replacing a cast iron flywheel can be more expensive than replacing an aluminum one, due to the material's increased weight and complexity of manufacturing.
Conclusion: The 1964-72 Pontiac GTO with a 166 cast iron flywheel (part number 8621677) is a great choice for classic car enthusiasts who value authenticity and durability. However, it's important to consider the potential drawbacks, such as weight and maintenance requirements, before making a purchase. If you're looking for a more modern and lightweight option, you may want to consider an aluminum flywheel instead. Ultimately, the decision to buy a 1964-72 Pontiac GTO with a 166 cast iron flywheel depends on your personal preferences and priorities as a car owner.
Recommendation: If you're in the market for a classic GTO and value authenticity and durability, then a 1964-72 Pontiac GTO with a 166 cast iron flywheel (part number 8621677) is a great option to consider. Just be sure to factor in the potential drawbacks, such as weight and maintenance requirements, before making a final decision.
This flywheel has been shot preened and Blanche ground it some very slight heat cracks witch is normal a snout ring gear 166 tooth with wear look at pictures ask questions I only ship USA.