Introducing the 1150cc Stage 2 Engine for Morris Minor, MG Midget, Austin Healey and more

BMC ‘A-Series’ – 1150cc Stage 2 Tuned Engine – Morris Minor, MG Midget, Austin Healey and more

Special Introductory Offer!

A-SD have been building A-Series Engines for Road and Race use since the 1970’s, with machinists from the era when tuning the A-Series was for real competition use we know how to get the most out of the engines no matter what your application or needs.

Since the 70’s the most cost effective way to get power into your A-Series powered car was to start with a 1275 / 1300 power unit. This has been turned on its head in recent years, where you can now be spending anywhere upto £500 for an untested 1275 unit.

Our in-house team has been working behind the scenes, coming up with exciting and cost effective ways of getting genuine power and reliability for different applications from the smaller bored A-Series units. With interest from specialists and car enthusiasts, you can be sure you will be seeing the A-SD performance packs on plenty of 998 and 1098 Power Units.

1150cc Stage 2 Tuned A-Series Engine

Originally developed in 2015, We have been testing this spec in an Austin a30 that is used for weekend pleasure rides along with commuting in the better weather. Having clocked up around 15,000 miles since installed, we have been incredibly impressed with the drivability and performance from this product. The one you see in front of you is ear marked for a customer who’s car is currently going through the A-Series Spares workshop.


  • 1098cc, Over-Bored to 1150cc
  • Block Refaced, Chemically Cleaned with new core plugs.
  • High Compression Pistons
  • Reground, Balanced Crankshaft
  • Mahle Big End Bearing Shells
  • Mahle Main Bearing Shells
  • Camalot 4 Performance Road Camshaft
  • New iSky Followers
  • New Push Rods.
  • New Duplex timing chain kit.
  • New Water Pump, Oil Pump
  • Water Temperature Sensor
  • Oil Pressure Relief Valve
  • Oil Pressure Switch
  • Reconditioned 12G940 Large Valve cylinder head, mild porting, uprated springs.
  • New Forged Rockers
  • Tailored Electronic Distributor
  • 10mm HT Leads
  • NGK BPR7ES Spark Plugs
  • Powerlite RAC403 Starter Motor
  • HIF38 Carburettor
  • Ramair Air Induction
  • Built up with new, quality hardware throughout. Head studs, Con Rod bolts and all ancillary bolts.
  • Payen Gaskets

Built up to the highest quality standards, complete with initial start up papers, warranty papers and set up instructions.

On completion of each build, Our Engines are set up and run on our purpose built test bed. During this initial start up the water temperature and oil pressure are monitored and we inspect to make sure there are no water or oil leaks. With the test complete the Engine Oil is drained and the engine is secured into its crate for shipping or collection.

Giving you the reliability and power of a mildly tuned 1275, with incredible drivability.

These engines are available to order through A-Series Spares, please discuss your specification and requirements.


Leave a Reply

Save & Share Cart
Your Shopping Cart will be saved and you'll be given a link. You, or anyone with the link, can use it to retrieve your Cart at any time.
Back Save & Share Cart
Your Shopping Cart will be saved with Product pictures and information, and Cart Totals. Then send it to yourself, or a friend, with a link to retrieve it at any time.
Your cart email sent successfully :)