Late model 1275 question

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Late model 1275 question

Postby shamer » Fri Dec 05, 2014 9:33 pm

I'm new to the list and this is my first post. I've had my Bugeye since '75. I've found a MK 4 sprite with an engine with the following number:12V/671Z/110573. The reference books I've seen say this is a 1972 or later engine and was for the North American market. How can this be if they also say they stopped importing them in '69? Were they still being imported in '72? Is there a source to determine where this engine falls in the latter days of 1275 production?
The car it's in is a '68 model according to the data plate. Are there any pros or cons with this engine? I'm thinking of picking up this basket case. I don't know the condition of the engine but it's so cheap it's not a gamble.

Thanks in advance for any and all input.
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Re: Late model 1275 question

Postby Charlie Tolman » Sun Dec 07, 2014 1:38 am

The 12V 1275cc engines were installed by the factory in 1972-74 MG Midgets.
It appears that the 1968 Sprite had an engine swap by a previous owner.

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Re: Late model 1275 question

Postby djimbe » Mon Dec 08, 2014 10:17 am

some previous owner installed a 12V engine in the '60 BE that I own. Hasn't been any trouble for me...
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Re: Late model 1275 question

Postby Paul McGuffin » Sat Feb 07, 2015 8:55 pm

So...a 1972 Midget 1275cc will fit into a Bugeye? What is the last year of the Midgets that the wire wheels, disc brakes, etc. will swap out with a 1958-61 Bugeye?
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Re: Late model 1275 question

Postby randyz » Tue Feb 10, 2015 2:54 pm

What we're talking about are BMC A-series engines and drivetrains. The Bugeyes were built from 1958-61 and used the early 948cc engine and smoothcase gearbox. When they started building square-bodied Spridgets in 1961, they first used later 948cc engines and smoothcase gearboxes. By 1963, they were using early 1098cc engines with smoothcase gearboxes. Then in 1965, they started building cars with roll-up windows that used later 1098cc engines with ribcase gearboxes. In 1967, they went to the 1275cc engine with ribcase gearbox and continued through 1974. In 1975, they went to rubber bumpers and started using Triumph 1500 engines. So basically, any engine from 1958-74 will fit your Bugeye, but the 1275's were used from 1967-74. History lesson over...
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Re: Late model 1275 question

Postby Paul McGuffin » Wed Feb 11, 2015 10:19 pm

So basically, any engine from 1958-74 will fit your Bugeye, but the 1275's were used from 1967-74. History lesson over...
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Thanks for your help. I knew quite a bit of what you wrote. I once had a 1961 Bugeye. In 1966 I took a wrecked 1966 Midget and put the wire wheels and disc brkes on my Bugeye. I was just wondering at what point (year) the midget parts would still fit the old Bugeye. So, I guess it 1974. I would think the wires from a 74 would still fit on a Bugeye??
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Re: Late model 1275 question

Postby randyz » Thu Feb 12, 2015 2:38 pm

Wire wheels from any year Midget/Sprite would fit a Bugeye. Of course you'd have to figure out how to do it if the car currently has disc wheels. That's a whole 'nother thing. Also I myself would never try to use old wire wheels or old wire wheel hubs. I always buy new on that stuff...
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Re: Late model 1275 question

Postby Paul McGuffin » Thu Feb 12, 2015 3:00 pm

Yep, I was thinking, if I did it again, wires and disc on a bugeye, I would spend the $2500 to $3000 (?) at Moss Motors and do it all new. There’s a man down here in southern Arizona, he is the original owner of a 1960 bugeye. He always talks about selling it. I think he’s just fishing. Now, it’s really a nice little car, but not a Barrett Jackson. I thought maybe $8000 with his hard top. It's still 100% stock with the original 948cc engine and crash box. He did one dumb thing, IMO. The car is the original white, he painted a blue racing stripe down the middle. On a re-paint, that means more work sanding the stripe off.
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