SEALED POWER 1963EX Exhaust Valve Head Seat 1.66

( Brand: Sealed Power ), ( Manufacturer Part Number: 1963EX ), ( Type: Exhaust Valve ), ( Oe/oem Part Number: 489843 ), ( Material: Steel ), ( Vintage Part: Yes ), ( Finish: Polished ), ( Country Of Origin: United States )

Review SEALED POWER Pontiac Exhaust Valve 1.66 Inch Head 45 Seat Usa fits 350 400 455 1973–1977

Introducing the Power 1963EX Exhaust Valve, an essential upgrade for Pontiac vehicles equipped with 350, 400, or 455 cubic inch engines and 1.66 head 45 intake manifolds, produced between 1973 and 1977. This exhaust valve is a must-have for those seeking improved engine performance, enhanced exhaust flow, and a more robust driving experience.

The Power 1963EX Exhaust Valve is meticulously engineered with a robust design to withstand the demands of high-performance applications. It boasts a large 1.66-inch diameter, ensuring optimal exhaust flow and reducing backpressure for increased power and torque. The valve is made from high-quality materials, including a durable, heat-resistant stainless steel construction, which guarantees longevity and reliability.

This exhaust valve is specifically designed to fit perfectly in your Pontiac engine, making installation a breeze. It is a direct replacement for the original exhaust valve and requires no additional modifications or customization. Moreover, it is compatible with both stock and aftermarket exhaust systems, allowing you to tailor your setup to your unique requirements.

Upgrading to the Power 1963EX Exhaust Valve offers numerous benefits, including improved engine performance, smoother power delivery, and a more responsive driving experience. Additionally, it contributes to a more pleasing exhaust note, adding an extra layer of enjoyment to your Pontiac driving experience.

Investing in a Power 1963EX Exhaust Valve is an excellent choice for any Pontiac enthusiast looking to enhance their engine's performance and power output. Whether you're a weekend warrior or a dedicated racer, this exhaust valve is an essential component in your quest for improved engine performance and a more enjoyable driving experience. Upgrade your Pontiac today and experience the difference a high-quality exhaust valve can make!

The 1963-1977 Pontiac 350, 400, and 455 engines with 1.66 head and 4-bolt main bore blocks are popular choices for muscle car enthusiasts due to their power and performance. Here are some pros and cons of buying one for your vehicle:

1. Power: These engines offer a significant power boost compared to smaller engines. The 455 cubic inch engine, in particular, produces around 360 horsepower and 500 lb-ft of torque.

2. Availability: These engines are widely available in the aftermarket, making it easier to find parts and accessories.

3. Customizability: With a large aftermarket community, there are numerous performance upgrades and modifications available for these engines.

4. Reliability: These engines are known for their durability and reliability, especially when properly maintained.

1. Size: These engines are large and heavy, which can make installation more difficult and expensive.

2. Fuel Economy: Due to their size and power, these engines are not very fuel-efficient.

3. Complexity: These engines have more moving parts than smaller engines, making them more complex and potentially more difficult to diagnose and repair.

4. Maintenance: These engines require regular maintenance to keep them running smoothly, including regular oil changes, tune-ups, and valve adjustments.

The decision to buy a 1963-1977 Pontiac 350, 400, or 455 engine with a 1.66 head and 4-bolt main bore block ultimately depends on your individual needs and preferences. If you're looking for power, reliability, and the ability to customize your vehicle, then this engine may be the right choice for you. However, if you're concerned about size, fuel economy, or maintenance costs, you may want to consider a smaller engine.

If you do decide to go with one of these engines, be sure to do your research and find a reputable supplier for the engine and any necessary parts. A professional mechanic can also help ensure a smooth installation and proper tuning of the engine. Additionally, be prepared for regular maintenance to keep the engine running at its best.

Details:

Pontiac 1973 400 exhaust valve set Except WH, YH, YJ, YW engine: 1974 All 350 Exhaust with 1.66 head and 45 seat, Quantity 8 eight exhaust valves, 1975 Excl. Y,or X, 1976 Excl.

part #: 1963ex price

• $150.00

specifications voomvalve:

• for models: 350, 400, 455
• for makes: Pontiac
• for years: 1973-1977
• brand: Sealed Power
• mpn: 1963ex
• type: Exhaust Valve
• oe/oem part number: 489843
• material: Steel
• vintage part: Yes
• finish: Polished
• country of origin: United States

general voomvalve:

• condition: New
• Engines Engine Parts > Valvetrain Components > Valves

offer voomvalve:

• options: Ship-to-home
• sold: 0
• availability: In Stock
• quantity: 1
• started: May 26, 2026

seller voomvalve:

• # reviews: 16801
• city: Vinton, Virginia
• rating: 100.0%

returns voomvalve:

• policy: Returns Accepted
• paid by: Seller
• time: 30 Days

payments voomvalve:

• wallet: Apple-pay
• other
• credit card: Diners-club

shipping voomvalve:

• type: Fixed
• cost: $0.00
• transit: 3-8 Days
• class: Expedited
• service: Expedited

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