1. Cylinder Heads & Parts Engines Components For Sale
  2. sku: 10038279090002751
  3. MG AUSTIN MIDGET

MG/AUSTIN 306-50037 Midget Cylinder Head Mk 66-74 1275CC

fits year: 1970.

306-50037 Mg/austin 66-74 Midget Cylinder Head Mk Iii 1275cc

( Brand: Mg/austin ), ( Model: MIDGET ), ( Part Type: Cylinder Head ), ( Conditions Options: Cfa, Needs Clean Up ), ( Genuine Oem: Yes ), ( Ipn: 306-50037 ), ( Descriptionpartcondition: Needs Clean Up ), ( Oe/oem Part Number: 78g431 )

Review MG/AUSTIN 66-74 Midget Cylinder Head Mk 1275cc fits 1970

Meticulously Engineered MG/Austin Midget Cylinder Head (Mk1275cc, MG/Austin 306-50037) - A Precision Upgrade for Your Classic Midget

Experience the unparalleled performance and reliability of the MG/Austin 306-50037 Cylinder Head, designed specifically for Mk 1275cc Midget models from 1966 to 1974. This replacement cylinder head is more than just an automotive component; it's a testament to the enduring spirit of British motoring heritage, expertly crafted to deliver a seamless blend of power and efficiency.

Crafted with precision and attention to detail, this cylinder head is a direct fit for your classic Midget, ensuring a straightforward installation process. The head features an optimized combustion chamber design, which allows for improved air-fuel mixture, enhancing performance and power output. The durable cast-iron construction guarantees robustness and longevity, ready to withstand the rigors of regular use and stand the test of time.

The MG/Austin 306-50037 Cylinder Head is equipped with hardened valve seats and stainless steel valves, ensuring optimal sealing and reduced wear for consistent performance. The head's valve guides are precision-machined for a smooth and efficient flow of air, while the twin-plug ignition system promotes a more even combustion, further enhancing power delivery and fuel efficiency.

In addition to improved performance, this cylinder head also prioritizes safety. The head's pressure-fed coolant system ensures efficient heat dissipation, keeping engine temperatures under control and reducing the risk of overheating. The head's manifold ports are carefully designed for optimal airflow, ensuring that your engine runs smoothly and consistently, even under heavy load.

Upgrading your Midget with the MG/Austin 306-50037 Cylinder Head is not just about performance; it's about preserving the legacy of classic British motoring. This cylinder head is a finely-tuned piece of automotive engineering, ready to breathe new life into your Midget, delivering a driving experience that is as engaging as it is rewarding. Elevate your Midget to new heights with the MG/Austin 306-50037 Cylinder Head a truly unique and essential upgrade for your classic Midget.

Analysis of Austin Midget Cylinder Head (MG/Austin 306-50037, 66-74 Midget, Mk 1275cc)

Pros:

1. Authenticity: This cylinder head is an original part for the MG Midget, ensuring a perfect fit and compatibility with other original components.

2. Durability: Known for their robustness, these heads have a good track record of lasting long with proper maintenance.

3. Availability: Being a popular classic car, the parts are relatively easy to find and purchase.

4. Value: Original parts like these can increase the value of your classic car, especially if you plan to sell it in the future.

Cons:

1. Cost: Original parts can be more expensive than aftermarket alternatives.

2. Limited Performance: While durable, these heads may not offer the same performance gains as modern or aftermarket options.

3. Availability of Spares: Some parts may be hard to find or expensive due to their age and rarity.

4. Compatibility with Modern Modifications: If you have made modern modifications to your engine, the original head may not be the best fit.

Conclusion:

The MG/Austin 306-50037 cylinder head is a great choice for those who prioritize authenticity and durability in their classic MG Midget. However, if you are looking for performance enhancements or cost savings, you might want to consider aftermarket options. It's essential to weigh the pros and cons carefully, considering your specific needs and budget. If you plan to keep your Midget as original as possible, this original head is a suitable choice. If you're looking for performance gains, there may be better alternatives available.

Details:

MG 66 Midget, Mk III 1275cc. Model MIDGET. MG 67-73 Midget Mk III 1275cc. This is a nice used part ready to be installed in your vehicle.

Good Used Part This is a good tested used part. If you are looking for a good, used guaranteed item this is the one. Product Title: 66-74 MG Midget Cylinder Head Mk III 1275cc. AUSTIN 67-71 Sprite MK IV 1275cc.

Vehicle has collision damage but the items was untouched in accident.

specifications cylinderheapar:

  • for years: 1970
  • brand: Mg/austin
  • model: Midget
  • part type: Cylinder Head
  • conditions options: Cfa, Needs Clean Up
  • genuine oem: Yes
  • ipn: 306-50037
  • descriptionpartcondition: Needs Clean Up
  • oe/oem part number: 78g431

returns cylinderheapar:

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

general cylinderheapar:

  • condition: Used
  • Car Truck Parts Accessories > Engines Engine Parts > Other Engine Parts

payments cylinderheapar:

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

seller cylinderheapar:

  • city: Lynn, Massachusetts
  • # reviews: 6522
  • rating: 96.5%

shipping cylinderheapar:

  • carrier: UPS
  • service: UPS Ground
  • type: Fixed
  • class: Standard
  • cost: $0.00
  • transit: 4-9 Days

offer cylinderheapar:

  • quantity: 1
  • options: Ship-to-home
  • availability: In Stock
  • sold: 0
  • started: July 26, 2025
  • best offers: True
for years: 1970, part type: cylinder head, conditions options: cfa, needs clean up, genuine oem: yes, descriptionpartcondition: needs clean up, oe/oem part number: 78g431,
manufacturer: mg austin, category: auto parts > car truck parts accessories > engines engine parts > engine parts, sku: 10038279090002751,
Mg/austin Is Similar To:
  • (33.1% similar) Everything pictured is what included. Used cylinder head from a Nash metropolitan, could use some cleaning but is in good condition...(February 16th, 2019)
  • (34.1% similar) New austin plate is part NUMBER12A1205, mg IS12G826. Original valve cover for midget and sprites. Very good original condition, but needs paint. If yours looks the same, it fits. Note, compatibility was not working, ignore it. Has austin logo. Shipping I ship FedEx in the us please give me your ...(April 2nd, 2019)
  • (39.3% similar) 12G1316 head from 1275CC mg midget as pictured for rebuild...(November 24th, 2015)
  • (45.2% similar) This offer is for a 12G295 cylinder head for a 1098 powered sprite or midget...(April 5th, 2015)
  • (41.5% similar) This head has been manga fluxed and no cracks. This head will fit all years as well if smog rail holes are plugged. Up for sale is 1 good used cylinder head with valves fitted to all mg GB model's the casting number 12H2389...(September 13th, 2018)
  • (24.8% similar) Costs are determined by the shipper, not by us. I would put it on my car. This has the pressed steel rockers. Many cars have been modified by previous owners. This was all removed from as a unit from a recently rebuilt engine so it fits together. This was lightly washed and coated with oil. The 1275...(March 24th, 2015)
  • (49.6% similar) Might be midget ,1275CC I have been advised by someone who knows better than I remember. Complete valve job some years ago, cleaning out garage. Don't remember year or exact vehicle...(September 17th, 2016)
  • (45.6% similar) For sale rebuilt 948 casting number 2A269 cylinder head. Shipping in us the last picture is old listing by the person that built the engine and this head. It was on a rebuilt engine with my sprite MK1 project. It ran great with good compression. Removed only for a big valve head swap. Due to weight...(May 10th, 2016)
  • (45.3% similar) Used and dirty fine for repairs...(March 13th, 2016)
  • (31.1% similar) I have never had it out of the box. Is a bare head with guide sand core plugs installed. This is a new in the box head for an mg midget 1500CC engine up to 1976 according triumph parts book. I purchased an entire inventory from a dealer some years back and this was in the bundle. I have never ...(June 8th, 2017)
  • (36.6% similar) The valve guide bosses are smaller on these early castings and flow a lot better. This is an early head casting no. This head casting has not been modified except for the fitting of valve seats for use with unleaded gas petrol. Fitted with new standard size valves, seals, guides and lead free seats ...(December 15th, 2015)
cylinderheapar logo
5 offers $414.99–$975.00 USD
  • Used. Offer #1 priced at $975.00 + $40.00 shipping estimate = $1015.00* total. +$40.00 shipping
  • Used. Offer #2 priced at $600.00 + $0.00 shipping estimate = $600.00* total. FREE SHIPPING
  • Used. Offer #3 priced at $414.99 + $98.12 shipping estimate = $513.11* total. +$98.12 shipping
  • Used. Offer #4 priced at $134.26 + $34.89 shipping estimate = $169.15* total. +$34.89 shipping
  • Used. Offer #5 priced at $178.26 + $31.86 shipping estimate = $210.12* total. +$31.86 shipping

Copyright © cylinderheapar.com