BUICK 1187800 Nos Rocker Arm 60 63 65 401

( Part Type: Arm ), ( Manufacturer Part Number: 1187800 ), ( Country/region Of Manufacture: United States ), ( Vintage Part: Yes )

Review BUICK 60 63 65 401 Nos Rocker Arm fits 400 425 1959–1966

The Buick 1187800 is a critical component in the engine's valvetrain system for various Buick models produced between 1959 and 1966. More specifically, it applies to the 400, 401, and 425 cubic inch engines in these years, which include the 1959 Buick LeSabre, 1960-1961 Buick Special, LeSabre, and Invitera; the 1962-1963 Wildcat and Riviera; and the 1964-1965 Riviera and LeSabre. This part is essential as it facilitates the proper functioning of the rocker arms.

The rocker arm setup consists of numerous components, one of which is the Buick 1187800, which is essentially a regulator or shim holder. This component is designed to maintain the desired clearance between the rocker arms and the valves, ensuring they operate correctly under varying engine load conditions.

Made to precision specifications, these regulators come in sets that include several shims of various thicknesses. This allows for adjustment and fine-tuning of the valve clearance to perfection, ensuring optimal engine performance. By establishing consistent clearance, the engine achieves optimal power output while maintaining smooth idling and minimizing unnecessary wear on valves and pistons.

In summary, the Buick 1187800 is a vital part of the Buick 400, 401, and 425 cubic inch engines' valvetrain system during the 1959-1966 period. It plays a crucial role in providing correct clearance between the rocker arms and the valves, enabling subtle adjustments and contributing to the overall efficiency, power, and longevity of your Buick engine.

Buick 400 and 401 engine, produced between 1959 and 1965, are popular automotive choices for enthusiasts due to their robust design and powerful performance. These engines, specifically those without rocker arms like the 1187800 variant, have distinct advantages and disadvantages, which we will discuss below.

1. Power: The Buick 400 and 401 engines were renowned for their power and torque, making them ideal for those seeking a responsive driving experience. With displacements ranging from 4.1 to 4.6 liters, these engines offered impressive performance.

2. Durability: Known for their robust design, Buick 400 and 401 engines were built to last. Their large displacement and heavy-duty components allowed them to handle high loads and withstand daily use for extensive periods.

3. Versatility: These engines have been used in various applications, ranging from full-size sedans to custom hot rods and race cars. Their versatility makes them an excellent choice for projects with unique requirements.

1. Size and Weight: The Bulk 400 and 401 engines are larger and heavier than modern engines, which can present challenges during installation. Finding sufficient space in the engine bay, and ensuring proper cooling and exhaust systems, might be difficult.

2. Fuel Efficiency: Due to their large displacement and older design, the Buick 400 and 401 engines are not known for their exceptional fuel efficiency. Expect lower mpg (miles per gallon) compared to modern standards.

3. Availability: While these engines are popular among enthusiasts, finding original parts, especially those in good condition or for rare applications, may be challenging and expensive.

The Buick 400 and 401 engines, especially those without rocker arms like the 1187800 variant, offer a compelling blend of power, torque, and robust build quality. However, their size, weight, fuel efficiency, and availability are essential factors to consider before purchasing one.

If the advantages of power, durability, and versatility outweigh the disadvantages for your specific project or driving needs, then investing in a rebuild or restoration of the 1959-1966 Buick 400 or 401 engine could be a worthwhile endeavor. Keep in mind that extensive research, careful planning, and access to a reliable network of parts suppliers will be crucial to a successful project.

In summary, the Buick 400 and 401 engines represent an iconic piece of American automotive history. While they may come with challenges, the rewards of owning and restoring one can result in a highly capable, powerful, and engaging driving experience.

Details:

This is a 1959-66 Buick NOS Engine Rocker Arm. This is a Genuine GM part. It fit the Following Engines 4 401,425. Casting number is 1186316.

part #: 1187800 price

• $50.00

specifications engibearing:

• for models: 400, 425
• for makes: Buick
• for years: 1959-1966
• part type: Arm
• manufacturer part number: 1187800
• country/region of manufacture: United States
• vintage part: Yes

general engibearing:

• condition: New
• Car Truck Parts Accessories > Engines Engine Parts > Engine Bearings

payments engibearing:

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

shipping engibearing:

• type: Calculated
• cost: $6.30
• class: Standard, Expedited
• service: USPS Ground Advantage, USPS Priority Mail, UPS Ground
• carrier: USPS, UPS
• transit: 4-9 Days

returns engibearing:

• policy: No Returns

offer engibearing:

• started: January 20, 2025
• options: Ship-to-home
• sold: 0
• quantity: 7
• availability: In Stock
• best offers: True

seller engibearing:

• rating: 100.0%
• # reviews: 509
• city: Munger, Michigan

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