1. Manifolds & Headers Offered
  2. sku: 1509578913765783
  3. MG 12H709

MG 12H709 Mgb Exhaust Manifold K634

fits year: 1962–1980.

12h709 Mg Mgb Original Exhaust Manifold - Remanufactured 1962 1980 K634

( Brand: Mg ), ( Type: Exhaust Manifold ), ( Color: Silver ), ( Items Included: Stud, Washer ), ( Manufacturer Part Number: 12H709 ), ( Material: Cast Iron ), ( Placement On Vehicle: Engine Mounted ), ( Fuel Type: Gasoline )

Review MG Mgb Original Exhaust Manifold Remanufactured fits 1962–1980

12H709 MGB Exhaust Manifold for MG cars from 1962 to 1980 (K634)

The 12H709 exhaust manifold is a crucial component of the exhaust system for MG cars manufactured between the years 1962 and 1980, carrying the part number K634. This manifold is a high-performance aftermarket replacement designed to enhance the power output and improve the overall driving experience of your classic MG vehicle.

Design and Construction:

This exhaust manifold is meticulously crafted using premium materials to ensure durability and exceptional thermal resistance. Its authentic design is a faithful reproduction of the original OEM manifold with intricate details that characterize MG's esteemed heritage. Each unit undergoes rigorous testing to guarantee a perfect fit and optimal performance.

Functionality:

Featuring robust cast iron construction, this exhaust manifold is an ideal upgrade for your MG, especially if you are looking to boost power and efficiency. It has a primary diameter of approximately 70mm, providing ample flow for efficient exhaust gas evacuation. Additionally, the 12H709 manifold features stud bosses and gasket surfaces in perfect condition to ensure a secure and air-tight installation.

Performance and Sound:

Compared to the stock exhaust manifold, the 12H709 aftermarket replacement offers impressive performance enhancements. The advanced design permits smoother exhaust flow, which translates to improved engine combustion and enhanced power delivery. The mmangment of back pressure results in an invigorating exhaust note, giving your vehicle a distinctive, rich sound that is both captivating and quintessentially MG.

Installation:

The installation of the 12H709 MGB exhaust manifold is relatively straightforward for experienced DIY enthusiasts, though we recommend consulting the enclosed instructions or a reputable mechanic for optimal results. Be sure to remove the old gaskets, studs, and any excess deposits before installation. It is also recommended to apply a high-quality gasket sealer for a secure bond between the manifold and the engine block. Once the new manifold is in place, reassemble the exhaust system and tighten the clamps securely.

Summary:

The 12H709 MGB exhaust manifold for MG cars (1962-1980, part number K634) is an excellent aftermarket upgrade for car owners looking to restore their beloved vehicle to peak performance while embracing its iconic sound. By incorporating advanced design elements and meticulous craftsmanship, this manifold is sure to deliver increased power and efficiency, making it an indispensable investment for your classic MG.

Buying a 12H709 MGB Exhaust Manifold for a 1962-1980 MGB (K634 engine) involves several considerations, including the benefits and drawbacks. Here's a breakdown of both for your reference.

Benefits:

1. Performance: A new exhaust manifold may offer better performance by improving gas flow, increasing power and torque, and enhancing engine responsiveness.

2. Durability: A new manifold can offer improved durability, as it may be manufactured using high-quality materials and modern manufacturing techniques. This can help prevent leaks and reduce the chance of the manifold failing.

3. Improved Fuel Efficiency: With improved gas flow and less backpressure, a new exhaust manifold can potentially lead to better fuel efficiency, as the engine will not have to work as hard.

4. Increased Longevity: Replacing the old exhaust manifold with a new one can help extend the life of the engine by reducing the amount of stress caused by a worn-out manifold.

5. Reduced Exhaust Emissions: A new exhaust manifold can help reduce exhaust emissions, making your vehicle more environmentally friendly.

Drawbacks:

1. Cost: The cost of a new exhaust manifold can be a significant investment, especially for an older vehicle like the MGB.

2. Installation Complexity: Installing a new exhaust manifold can be a complex process, and it may require specialized tools and expertise.

3. Fitment Issues: There is a possibility that the new manifold may not fit properly, especially if it is not a direct OEM replacement. It is essential to ensure compatibility before making a purchase.

4. Potential Power Changes: While a new exhaust manifold may increase power and torque, it may also cause engine power output to be different from the original, which could impact the tune of the engine.

Conclusion:

In conclusion, the decision to buy a 12H709 MGB exhaust manifold for a 1962-1980 MGB involves weighing the benefits against the drawbacks. On one hand, a new manifold can lead to improved performance, durability, fuel efficiency, increased longevity, and reduced emissions. On the other hand, the investment can be significant, installation may be complex, and fitment issues may arise. Ultimately, if the benefits outweigh the drawbacks and the budget allows, replacing the exhaust manifold can be a worthwhile investment, providing both functional and performance benefits.

Recommendation:

Before making a purchase, it's recommended to thoroughly research the available options, compare prices from reputable manufacturers, and verify compatibility with your specific vehicle model and engine. Consulting with a professional mechanic to ensure a proper installation can also help mitigate any risks associated with the installation process.

part # 12h709 prices

  • $85.00-$299.99

specifications maniheader:

  • for years: 1962-1980
  • brand: Mg
  • type: Exhaust Manifold
  • color: Silver
  • items included: Stud, Washer
  • manufacturer part number: 12H709
  • material: Cast Iron
  • placement on vehicle: Engine Mounted
  • fuel type: Gasoline

payments maniheader:

  • credit card: Mastercard
  • other
  • wallet: Paypal

shipping maniheader:

  • service: UPS Ground Saver, UPS Ground, UPS 3 Day Select
  • transit: 11-16 Days
  • cost: $0.00
  • carrier: UPS
  • type: Calculated
  • class: Economy, Standard, Expedited

general maniheader:

  • condition: Remanufactured
  • Car Truck Parts Accessories > Exhaust Emission Systems > Manifolds Headers

offer maniheader:

  • sold: 0
  • started: November 2, 2024
  • availability: In Stock
  • options: Ship-to-home
  • quantity: 1

seller maniheader:

  • # reviews: 4908
  • rating: 95.7%

returns maniheader:

  • time: 30 Days
  • policy: Returns Accepted
  • paid by: Buyer
for years: 1962-1980, type: exhaust manifold, items included: stud, washer, placement on vehicle: engine mounted, fuel type: gasoline,
category: auto parts > car truck parts accessories > exhaust emission systems > manifolds headers, color: silver, material: cast iron, sku: 1509578913765783,

Mg 12H709 Is Similar To:

maniheader logo
5 offers $85.00–$299.99 USD
  • Offer #1: $85.00 price + $32.80 delivery = $117.80* total. MG MGB Original 62-74 Original Exhaust Manifold Assembly.+$32.80 shipping
  • Offer #2: $299.99 price + $34.80 delivery = $334.79* total. Used original reconditioned exhaust manifold for MGB models.+$34.80 shipping
  • Offer #3: $143.20 price + free delivery = $143.20* total. The mounting studs are in good shape. This is an original exhaust manifold with the part umber cast into it.FREE SHIPPING
  • Offer #4: $229.95 price + $13.81 delivery = $243.76* total. Great when used on 1975-80 MGB with Weber carburetor conversion. Original reconditioned cast iron manifold part # fits 1972-74 MGB.+$13.81 shipping
  • Offer #5: $225.00 price + $81.10 delivery = $306.10* total. ORIGINAL PARTS FIT! Exhaust Manifold.+$81.10 shipping