1. Rocker Arms & Parts Engines Components For Sale
  2. sku: 12240189429744781
  3. PERFECT CIRCLE 214-2129

PERFECT CIRCLE 214-2129 Engine Rocker Arm Gm 725975160398 350-V8 1.6

fits year: 1968–1974.

214-2129 Perfect Circle Engine Rocker Arm 1968-1974 Gm 350-v8 1.6 Ratio

( Brand: Perfect Circle ), ( Manufacturer Part Number: 214-2129 ), ( Part Type: Engine Arm ), ( UPC: 725975160398 )

Review PERFECT CIRCLE Engine Rocker Arm Gm 1.6 Ratio fits 1968–1974

Introducing the Circle 214-2129 engine rocker arm, specifically designed for GM 350-V8 engines manufactured between 1968 and 1974. This vital engine component plays a crucial role in the proper functioning of your engine by converting reciprocating linear motion of the piston into rotating motion of the camshaft.

The Circle 214-2129 engine rocker arm is meticulously crafted using high-quality materials, ensuring durability and longevity. Each arm features a robust design with a polished finish that not only enhances the engine's aesthetic appeal but also protects the surface from wear and corrosion.

Measuring 1.6 inches in length, these rocker arms are perfectly sized for the specified GM 350-V8 engines. They come as a set of eight units, with each arm designed to connect the camshaft to the lifter, thereby facilitating the transfer of energy necessary for efficient engine operation.

The Circle 214-2129 engine rocker arms are engineered to provide an optimal balance between power and economy. By ensuring smooth and consistent camshaft movement, these components contribute significantly to the overall performance and reliability of your engine.

Each rocker arm is designed with precision engineering, ensuring a perfect fit for GM 350-V8 engines from the late 1960s through the early 1970s. Installing these rocker arms is a straightforward process, making this an excellent upgrade or replacement option for DIY enthusiasts or professional mechanics.

In summary, the Circle 214-2129 engine rocker arms offer superior performance, durability, and ease of installation for GM 350-V8 engines produced between 1968 and 1974. By upgrading or replacing your worn-out rocker arms with these high-quality units, you can enhance the power, efficiency, and longevity of your engine.

Buying a 1968-1974 GM 350-V8 1.6 inch rocker arm (part number 214-2129) comes with the following pros and cons: Pros:

1. Improved Engine Performance: Replacing worn-out or damaged rocker arms can improve the performance of your engine by reducing valvetrain wear and improving valve control.

2. Longer Service Life: Using new rocker arms can extend the life of your engine by preventing further damage and reducing the need for frequent repairs.

3. Smoother Operation: New rocker arms can result in smoother engine operation, leading to a better driving experience.

Cons:

1. Cost: Buying a new set of rocker arms can be expensive, especially if you're replacing all of them at once.

2. Installation Complexity: Installing new rocker arms can be a complex process, especially if you're not experienced in engine work. It may require specialized tools and a significant amount of time.

3. Potential for Damage: During the installation process, there is a risk of damaging other engine components or causing further damage to the rocker arms themselves.

Ending Conclusion:

Weighing the pros and cons, it is recommended to replace worn-out or damaged rocker arms with new ones to improve engine performance, extend the service life, and ensure smoother operation. However, the high cost and installation complexity are significant drawbacks that should be carefully considered before making a purchase. If you're not confident in your ability to install the new rocker arms yourself, it may be worth considering hiring a professional mechanic to do the work for you. Ultimately, the decision to buy a new set of rocker arms for your 1968-1974 GM 350-V8 engine depends on your budget, technical skills, and the importance of engine performance to you.

Details:

There may be minor corrosion, scuffs, torn or missing boxes, scratches from storage, etc. Or any other minor issue that does not make the part you are buying DEFECTIVE. Perfect Circle part number 214-2129. ONCE Purchased YOU OWN IT.

If any manufacturer warranty exists, it is between you and them. Sometimes the fitment is so old that it does not take into account trim, engine size or build dates. None of which makes the part Defective. They may have been in storage anywhere from 1-30 years.

Be sure the part you are buying is correct for your application. Shipping:: Free Shipping is for continental USA only. Rubber parts, gaskets, hardware may need to be replaced and not usable.

part #: 2142129 prices

  • $9.74-$100.00

specifications rockeareng:

  • for years: 1968-1974
  • brand: Perfect Circle
  • mpn: 214-2129
  • part type: Engine Arm
  • upc: 725975160398

payments rockeareng:

  • wallet: Google-pay
  • other
  • credit card: Mastercard

shipping rockeareng:

  • transit: 4-10 Days
  • type: Fixed
  • class: Expedited
  • carrier: USPS
  • service: USPS Priority Mail
  • cost: $0.00

general rockeareng:

  • condition: New other see details
  • Engines Engine Parts > Valvetrain Components > Rocker Arms Parts

seller rockeareng:

  • # reviews: 239590
  • rating: 99.3%
  • city: Houston, Texas

offer rockeareng:

  • sold: 0
  • started: July 29, 2025
  • options: Ship-to-home
  • availability: In Stock
  • quantity: 9

returns rockeareng:

  • time: 30 Days
  • policy: Returns Accepted
  • paid by: Seller
for years: 1968-1974, part type: engine arm,
category: auto parts > engines engine parts > valvetrain components > rocker arms parts, sku: 12240189429744781,
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5 offers $9.74–$100.00 USD
  • New. Offer #1 priced at $9.74 + $9.14 shipping estimate = $18.88* total. Made in the United States, this rocker arm kit ensures proper performance and reliability for your vehicle The Perfect Circle 214-1132 Engine Rocker Arm Kit is a high-quality aftermarket part designed specifically for 1980-1990 GM 260, 307, and 350 V8 engines.+$9.14 shipping
  • New other (see details). Offer #2 priced at $100.00 + $0.00 shipping estimate = $100.00* total. Perfect Circle 41079 STD DUCTILE MOLY Piston Ring Set for Chevy 302 327 350 V8 Racing Engine & Ford/Mercury 289 302 351 V8 Racing Engines with 4" Bore, (16) 1/16" Compression rings & (8) 3/16" Oil Rings.FREE SHIPPING
  • New other (see details). Offer #3 priced at $22.49 + $0.00 shipping estimate = $22.49* total. Be sure the part you are buying is correct for your application. Perfect Circle part number 214-1132.FREE SHIPPING
  • New other (see details). Offer #4 priced at $152.99 + $0.00 shipping estimate = $152.99* total. Perfect Circle part number TC-1740-040-8.FREE SHIPPING
  • New other (see details). Offer #5 priced at $98.96 + $0.00 shipping estimate = $98.96* total. Perfect Circle part number TC-1949-020-8. PISTON SIZE IS.020.FREE SHIPPING

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