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GM 523803 Nos Exhaust Valve General F.i. 3/2

fits model: Bonneville, Catalina. make: Pontiac. year: 1957–1960.

523803 General Motors Nos Gm 1957 1958 1960 Pontiac Bonneville Catalina F.i. 3/2 Exhaust Valve

( Brand: Gm ), ( Manufacturer Part Number: 523803 ), ( Type: Exhaust Valve ), ( Material: Steel ), ( Features: Genuine ), ( Vintage Part: Yes ), ( Country/region Of Manufacture: United States ), ( Finish: Polished ), ( Performance Part: No )

Review GM General Motors Nos Pontiac Catalina.i. 3/2 Exhaust Valve fits BONNEVILLE CATALINA 1957–1960

Introducing the 523803 NOS (New Old Stock) GM 1957-1958 Pontiac Bonneville Catalina FI 3/2 Exhaust Valve, a genuine automotive part that will bring authenticity and functionality to your classic vehicle. This exhaust valve is a crucial component in the exhaust system, responsible for regulating the flow of exhaust gases to optimize engine performance and improve emission control.

Manufactured by General Motors during the 1957 and 1958 production years, this exhaust valve is an original piece that carries the rich history and charm of the Pontiac Bonneville Catalina. Its unique FI 3/2 designation indicates that it is part of the Fuel Injection 3 Two-barrel carburetor system, which was a popular and high-performance configuration during that era.

This NOS exhaust valve is made from durable materials to ensure long-lasting performance and resistance to corrosion. Its precise engineering and meticulous craftsmanship reflect GM's commitment to excellence in automotive manufacturing. It features a smooth operating mechanism that ensures optimal exhaust flow and minimal backpressure, resulting in improved engine efficiency and power.

Installing this NOS exhaust valve in your 1957-1958 Pontiac Bonneville Catalina is a straightforward process that can be completed with basic hand tools and some mechanical knowledge. By using an original GM part, you can be confident that you are restoring your vehicle with the highest quality components, ensuring its authenticity and preserving its value.

In summary, the 523803 NOS GM 1957-1958 Pontiac Bonneville Catalina FI 3/2 Exhaust Valve is a must-have for any enthusiast looking to restore their classic vehicle to its original condition. With its authenticity, durability, and performance benefits, this exhaust valve is an essential investment for those who take pride in their Pontiac Bonneville Catalina and want to maintain its historical accuracy and optimal functioning.

Pros and Cons of Buying a 523803 Nos GM 1957-1958 Pontiac Bonneville/Catalina F.I. 3/2 Exhaust Valve

1. Pros:

a. Authenticity: This exhaust valve is an original GM part (NOS - New Old Stock) from the 1957-1958 Pontiac Bonneville and Catalina F.I. 3/2 models. This ensures a perfect fit and high-quality manufacturing standards.

b. Rare Find: Original parts can be challenging to find, especially for older vehicles like the 1957-1958 Pontiac Bonneville and Catalina F.I. 3/2 models. Having a NOS exhaust valve can save you the trouble of searching for a suitable aftermarket alternative.

c. OEM Performance: The OEM exhaust valve is designed to deliver optimal performance, ensuring your engine runs as intended.

2. Cons:

a. Cost: Original parts, especially NOS, tend to be more expensive compared to aftermarket alternatives. The price might be a significant consideration for some buyers.

b. Availability: NOS parts are rare, and their availability is limited. You might need to search extensively to find a seller offering the exhaust valve.

c. No Performance Upgrade: Although this exhaust valve delivers OEM performance, it does not provide any performance upgrades. If you're looking to enhance your vehicle's power or sound, you might need to explore other options.

Conclusion:

The decision to buy a 523803 Nos GM 1957-1958 Pontiac Bonneville/Catalina F.I. 3/2 exhaust valve ultimately depends on your priorities as a car owner. If authenticity, originality, and OEM performance are important to you, then this exhaust valve is an excellent choice. However, if cost and availability are concerns, or if you're looking for performance upgrades, you might want to consider aftermarket alternatives.

Recommendation:

If you're committed to maintaining the originality and authenticity of your 1957-1958 Pontiac Bonneville or Catalina F.I. 3/2, a NOS exhaust valve like the 523803 is an excellent investment. It guarantees a perfect fit and OEM performance, ensuring your vehicle stays true to its roots. However, if cost or availability are significant concerns, or if you're looking for performance upgrades, you might want to explore aftermarket alternatives. Ultimately, the choice depends on your priorities and preferences as a car owner.

Details:

Original New Old Stock, sorry no box. NOS GM 1957 1958 1960 Pontiac Bonneville Catalina Fuel Injected Teri-Power Standard Exhaust Valve 523803. VALVE Std. 819581958 0-22, 5238030.297All 3/2B.C.-T 425A. Part Number Group Number Car Type Qty Restart Year Ending Yearbook Year, 5238030.297All.

VALVE Std. 10.75 C.R

part #: 523803 prices

  • $19.50-$170.00

specifications voomvalve:

  • for models: Bonneville, Catalina
  • for makes: Pontiac
  • for years: 1957-1960
  • brand: Gm
  • mpn: 523803
  • type: Exhaust Valve
  • material: Steel
  • features: Genuine
  • vintage part: Yes
  • country/region of manufacture: United States
  • finish: Polished
  • performance part: No

shipping voomvalve:

  • type: Fixed
  • transit: 4-8 Days
  • service: USPS Ground Advantage
  • carrier: USPS
  • cost: $6.95
  • class: Standard

seller voomvalve:

  • rating: 100.0%
  • # reviews: 2752
  • city: Decatur, Georgia

offer voomvalve:

  • quantity: 1
  • options: Ship-to-home
  • best offers: True
  • sold: 0
  • started: April 17, 2025
  • availability: In Stock

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

general voomvalve:

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

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for models: bonneville, catalina, for makes: pontiac, for years: 1957-1960, type: exhaust valve, features: genuine, vintage part: yes, country/region of manufacture: united states, finish: polished, performance part: no,
category: auto parts > engines engine parts > valvetrain components > valves, material: steel, sku: 6057599001894682,

Gm 523803 Is Similar To:

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2 offers $19.50–$170.00 USD
  • Offer #1: $19.50 price + $6.95 shipping estimate = $26.45* total. 0.297 All F.I.-3/2B.C.-T 395A. NOS GM 1957 1958 1960 Pontiac Bonneville Catalina Fuel Injected Tri-Power Standard Exhaust Valve.+$6.95 shipping
  • Offer #2: $170.00 price + $0.00 shipping estimate = $170.00* total. 1960 Pontiac Bonneville Catalina Star Chief Executive Ventura with 389 w/ 3 2-Bbl Carbs or T425A V8 Exhaust Valves. OEM GM.FREE SHIPPING

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