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1275cc High Performance Engine For Sprite, Midget & Morris Minor

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1275cc High Performance Engine For Sprite, Midget & Morris Minor

Selected: 1275cc High Performance Inline Engine

Select variations below for more information:

1275cc High Performance Inline Engine

$8555.98

1380cc High Performance Inline Engine

$8448.98

1275cc Base Model Inline Engine

$6094.98

1380cc Inline Engine

$6308.98

1380cc High Performance Engine For Sprite, Midget & Morris Minor1380cc High Performance Engine For Sprite, Midget & Morris Minor1380cc High Performance Engine For Sprite, Midget & Morris Minor

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1380cc High Performance Engine For Sprite, Midget & Morris Minor

Selected: 1380cc High Performance Inline Engine

1380cc street performance Sprite and Midget motor. With 113 Horsepower on tap this great package is ready to install and will absolutely thrill you. The rebored 1275cc motor includes high compression (10:1) performance pistons, an Aluminum cylinder head, a fast road camshaft (276 degrees duration) driven by a duplex set of timing gears. This set up will provide the ultimate in performance with great reliability. Includes water pump and spin-on filter assembly. A Weber 32/36 DGV carburetor, an alloy intake manifold, and a long center branch exhaust manifold are also included. The distributor spark plugs & plug wires are also included. Specifications:
• 73.5mm Nural 9cc dish pistons
• 10:1 Compression
• 10/10 Crank
• Elgin CAM003 timined in at 107º for best horsepower
• Static timed at 5º BTDC
• .014/.016 Valve lash (Hot)
• WEBER DGV Carb • 113 horsepower at the flywheel at 6500 R.P.M.
• 102 ft/lbs of torque at 4700 R.P.M.
• +/- 120hp with 1.5 ratio rockers (optional at added cost)

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Question:

Hi. I've called you a couple of times already, but I want to be sure I'm doing the right thing. I have a stock '58 Morris Minor 1000.I'm trying to figure whether to go with the 1380cc or the 1275 but will my existing gearbox fit either engine? I welcome any suggestions about how to make my car a bit more competitive on todays roads. I already have disc brakes and good suspension. I am used to SU carbs, never had Webers; can the specs be changed to take SUs if we go that route, the 1380HP?

Answer:

No, not really. The smoothcase gearbox isn't a good fit for the 1275's. It would be best to get a ribcase gearbox for any 1275, no matter how bored over.
Hope that helps

Question:

I have a 1974 Midget. I want to give the 1275 a lot more power but I don't know where to start. I am not going to race it. It is just for fun. I own a '76 that is done but is nutless even with a Kent Cam, weber, header and Monza exhaust. I was thinking of adding a supercharger too so can you point me to products you have for a complete rebuild. I want to add a new cam, crank, rods, heads, valves, lifters, pistons, flywheel, the works. I don't know what parts would work best with each other or would be best with a supercharge or not. I want the engine reliable and cool running in the end. Your thoughts for the best engine for me?

Answer:

Thanks for asking, let me share a few thoughts.Your objective is pretty common. You should note that a stock '76 Midget cam with a 1500cc Triumph motor that only put out 56HP. We offer no parts for Triumphs and thus also no advise. As for for your 1275 my first suggestion is that I would NOT suggest a supercharger upgrade when you also wont a reliable and cool running car.
Looking at your list of other potential upgrades (" I want to add a new cam, crank, rods, heads, valves, lifters, pistons, flywheel, the works") I would suggest a more cost effective proven direction would be for you to simply order one of these: https://www.spridgetmania.com/part/1380HP_INLINE/1380-Cc-hp-High-Performance--Sprite--Mg-Midget---Morris-Minor

Spridget Mania Tech Team

The Spridget Parts and Accessories Experts

Question:

I have a 1972 MG Midget and it needs a power upgrade. Do you have the 1380 cc performance engines already in stock? Are they custom-built to order? If so, can I make changes to the listed setup? (ie. different color engine paint, different carb, etc.)

Answer:

We don't stock engines as they are all built to order. You can pretty much have one built as custom as you like. We can either have you send us your engine to rebuild or we'll use a core of our own. However, if wanting to go to a 1380, it's imperative that the core be standard (not already over-bored) since 1380's require offset boring and anything already .020" over or larger generally don't make good cores for this process.

It would be best to call our office to discuss your needs.

Spridget Mania Tech Team

The Spridget Parts and Accessories Experts

Question:

I'm looking for and Classic Mini HP engine and 5-speed transmission for a 1959 Austin Healey Bugeye. HP Engine the best thing that you have that will fit. I want power but I don't want it to look like it.

Answer:

The HP engines are our higher end engines we offer online - however, we can build just about anything on the A-series engines. Full custom builds are what we do. If you're looking to keep a stock "sleeper" look, then the HP is the way to go, you can always bore the engine out for more power, the 1380HP_INLINE is good for about 115 horsepower (and can go higher with some add-ons)
Best to give us a call for details on custom engine builds.

Mini Mania Tech Team

The Classic Mini Parts and Accessories Experts

1275cc Rebuilt Engine For Sprite, Midget & Morris Minor1275cc Rebuilt Engine For Sprite, Midget & Morris Minor

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1275cc Rebuilt Engine For Sprite, Midget & Morris Minor

Selected: 1275cc Base Model Inline Engine

If you've been wanting to upgrade to a 1275 or your existing 1275 is just plain tired, you'll be interested in this! Our rebuilt 1275 long-block engines are complete from sump to valve cover and are rebuilt with all new or reconditioned parts including rocker assembly, pistons, oil pump, water pump, crank pulley, timing chain, reground crank and cam & new lifters. All cylinder heads have been set-up for unleaded gas! 12 Months or 12,000 mile warranty. Engine comes with backplate and reconditioned flywheel. Ancillaries like clutch, exhaust, intake, carb(s), and ignition components are extra.

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Question:

I Have a 1963 Austin Healey Sprite MKII, A series 1098cc Engine and need to get it rebuild, Is this something you can help me with?

Answer:

We don't actually rebuild 1098cc engines - only 1275cc engines. However, we can rebuild the ribcase gearbox. The rebuilt gearboxes are found here: https://www.minimania.com/part/RJM1109E/Transmission-Rebuilt-1275-Ribcase--Sprite--Midget

Spridget Mania Tech Team

The Spridget Parts and Accessories Experts

Question:

I have a customer with a MG-Midget 1963 Mark 1 (1963). He is interested in a new Engine (upgrade) for his car. He wants to go with a 1275cc engine. Do you offer new 1275cc engines?

Answer:

Thanks for checking us out - we do have some 1275 engine packages listed (with pricing) on the site HERE. anything from a basic rebuilt 1275 all the way up to 100+hp 1380 'race' engines.
Engines are built to order, and typically 8 weeks - depending on supply of parts.

Let us know if you have any more questions or give us a call 1-800-946-2642

Spridget Mania Tech Team

The Spridget Parts and Accessories Experts

Question:

I am interested in purchasing a rebuilt 1275+ engine from you. Do you offer the 1275 just as a short block? I'm using a Datsun transmission with the thicker backing plate. Can you ship without your backing plate? Is the engine balanced? Will this engine need to be broken in or are the rings and cam already set when you started it and checked for leaks?

Answer:

All engines are built and run on a test stand and checked for leaks. So, the timing is done and the rings are run-in for at least the amount of time the engine is on the stand. The engine can be shipped without the backplate. Engines aren't generally balanced with the entire rotating assembly but it can be done.

Give our office and we can give you all the particulars.

Spridget Mania Tech Team

The Spridget Parts and Accessories Experts
1-800-946-2642

Question:

Hello, I'm looking for a complete engine or a cranked engine for a 1275cc sprite (austin healey mk4 from 1968). Have you got some ? What is its price with a shipment to France? What is the lead time of supply. Thank you.

Answer:

Hi,
Currently we do not have any cores for sale.
thanks for asking.

Question:

Can I order without the carb, exhaust header, and spin-on oil filter stuff? I have my own. Would like the better 1.5 to 1 roller rockers. What would it cost?

Answer:

Hi,
We can customize any motor for you, just give us a call and I can work up a bid.

Your Spridget Part Team.

Question:

Hi, I have a 1966 Sprite with a very tired 1098. Last year after 2nd gear failed I purchased a rebuilt ribcase transmission from you. I am finally getting time to reassemble and I have decided it would be a mistake to not rebuild or replace the engine. New engine parts on the car that I plan on using with the new engine: Webber downdraft ManiFlow LCB header and full exhaust Distributor with Pertonix Alternator in a generator case The questions that I are: 1. I notice the 1275 High Performance includes a back plate, if I purchased one of the other engines how much would a back plate cost? 2. Do you have jetting recommendations for the Webber downdraft with each of these motors? Thank

Answer:

Hi,
We can certainly build an engine for you with the upgrades you listed. I can get a quote if you need one.
We do offer used back plates U-AEG552 .
Give me a call and we can go into details.
thanks,
Mini Mania Tech Support

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Street performance engine for Sprite, Midget, or Morris Minor 1275+cc engine. With about 100 Horsepower on tap (depends on your carb choice, exhaust, etc.). This great package is ready to install and will absolutely thrill you. The re-bored 1275cc motor includes:

High compression (9.75:1) performance pistons in +.020, +.040, or +.060" oversize
Aluminum cylinder head suitable for 1.5:1 ratio rocker set and unleaded fuel
Fast road camshaft (Elgin 103, 276 degrees duration) and new lifters
Lightweight steel duplex Timing set adjusted to 107 degrees ATDC lobe centers
New water pump, oil pump, rocker-shaft, and gaskets and seals throughout
New Thick Type Damper Pulley
Modern spin-on oil filter assembly
All our engines are test run with coolant to check for leaks and come with a one year or 12.000 mile warranty

This set up will provide fantastic performance AND great reliability. The engine back-plate is installed to seal up the oil pump, ready for your flywheel and clutch assembly and making installing your gearbox a snap. Add your carburetion, exhaust, starter, ignition and charging system and enjoy a whole new outlook on life!

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Also Purchased with: 1275HP_INLINE