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Triumph 1500?
Posted: Mon Jan 17, 2022 4:15 pm
by sean01597
a friend who works at a garage says they have an Austin Healy in for some work, including an engine change. he has been told it has a Triumph 1500 engine and box and wondered if they would fit my Minor. i have asked for more details.
Will they fit?
Re: Triumph 1500?
Posted: Mon Jan 17, 2022 5:55 pm
by ManyMinors
You CAN make it fit. It has been done before and I have driven one. It is quite a lot of work however for vary little gain over (for example) a BMC "A" Series 1275 engine which will more or less fit straight in. You can also fit the Triumph's overdrive unit to make it even more interesting.
Goodness knows why any Austin Healey would be fitted with such an engine

The Triumph engine was fitted to the last MG Midgets but most owners prefer the earlier 1275 "A" Series equipped models which should tell you something perhaps?
Re: Triumph 1500?
Posted: Mon Jan 17, 2022 7:10 pm
by liammonty
I'd agree with ManyMinors in that it doesn't really offer any benefit. I had a Dolomite with the 1500 engine in it, and though it was OK, the nature of the engine is very different to the A Series. It is relatively torquey, but slow-revving, and if you are brave enough to rev it hard (for little benefit and a lot of noise) it doesn't generally thank you for it. Crank end float is a known issue on these, with relatively frequent bottom end work needed, as the thrust washers wear fast. The 1500 started out life as an 803, like the A Series, and grew and grew, ending up at nearly double its original capacity, and I think in 1500 form was a little compromised.
Re: Triumph 1500?
Posted: Mon Jan 17, 2022 9:49 pm
by jagnut66
You can also fit the Triumph's overdrive unit to make it even more interesting.
I have an Triumph overdrive gearbox that I intend fitting to Hetty, once my garage has a roof.
Triumph engines do seem slower than comparable 'A' series units (Still love my Herald though).
Best wishes,
Mike.
Re: Triumph 1500?
Posted: Tue Jan 18, 2022 10:42 am
by philthehill
The change to the Triumph 1500cc engine was done to comply with emission controls especially in the USA. The poor old 'A' Series had reached its limits as regards emission controls and adding the emission control equipment saw a considerable loss of power. BL which owned Triumph had the engine available and the rest is history.
The easy route is to fit the MG Midget/Sprite engine/gearbox which will give sufficient power/torque even with a single carb.
Re: Triumph 1500?
Posted: Wed Jan 19, 2022 1:34 pm
by sean01597
thanks everyone, i will not be pursuing it.