World Library  
Flag as Inappropriate
Email this Article

Morris Isis

Article Id: WHEBN0001901437
Reproduction Date:

Title: Morris Isis  
Author: World Heritage Encyclopedia
Language: English
Subject: Morris Six (1928), Morris Oxford series II, Morris Oxford, Morris Motors, Spa Croft Models
Collection: 1950S Automobiles, Mid-Size Cars, Morris Vehicles, Rear-Wheel-Drive Vehicles, Sedans, Station Wagons
Publisher: World Heritage Encyclopedia

Morris Isis

Morris Isis
Manufacturer Morris BMC
Production 1929–31
Body and chassis
Class Mid-size
Layout FR layout

The Morris Isis name was first briefly used by Morris Motors LImited on a six-cylinder car made from 1929 to 1931. It was resurrected on a new six-cylinder midsize car from the British Motor Corporation in the 1950s to replace the Morris Six MS.

The name died out in 1958.


  • Morris Isis (1929–35) and Twenty Five (1933–35) 1
    • Facelift 1.1
    • Morris Twenty-Five 1.2
  • Isis Series I (1955–56) 2
  • Isis Series II (1956–58) 3
  • References 4

Morris Isis (1929–35) and Twenty Five (1933–35)

Morris Isis and Twenty Five
Isis 2468cc first registered 24 March 1932
Manufacturer Morris Motors Limited
Production 1929–35
7406 made[1]
Body and chassis
Body style 4-door saloon
4-door tourer
Engine 2.5 L or 3.5 L Straight-6
Transmission 3- or 4-speed manual
Wheelbase 120 in (3,048 mm)[2]
Length 178 in (4,521 mm)[2]
Width 71 in (1,803 mm)[2]

The Isis announced in July 1929[3] was a revised version of the 1927 Morris Six JA series and used the same 2468 cc engine and 3-speed gearbox. It had an all-new chassis, and the steel body had an American look, not surprising, as the body pressing dies made by Budd for the Morris-Budd joint venture, Pressed Steel Company, were shared with some Dodge models.[4] William Morris had recognised the potential of pressed steel car bodies and introduced them to Europe in Pressed Steel Company, a joint venture with Budd, sited beside William Morris's Cowley plant.

It was the first Morris to have hydraulic brakes and chromium plating replaced the previous nickel finish on brightwork.

The car could exceed 65 mph (105 km/h) and return 28 miles per imperial gallon (10 L/100 km; 23 mpg-US).

Isis Special Coupé reg'd 1933


After 3939 of the original Isis model had been made it received a facelift announced 1 September 1932. Following the court-forced separation of William Morris from his joint venture with Edward G Budd the all-steel body was replaced by a traditional wood frame construction. Mechanically the car was similar but the gearbox received syncromesh and a fourth speed (Twin-Top), the chassis received additional cross bracing in 1934 and an automatic clutch and freewheel were fitted to some models. 3467 of the new Isis were made (including Twenty-Five models).[1]

Isis saloon reg July 1934

Morris Twenty-Five

A de-luxe version, the Morris Twenty-Five was launched 12 October 1932 for the 1932 London Motor Show with larger 3485 cc engine. It was replaced in July 1935 by a new Twenty-Five, the flagship of the series II Morris range, and given an overhead valve engine (as the series III) in August 1938 with the rest of the Morris range.

Isis Series I (1955–56)

Morris Isis Series I
Manufacturer BMC
Production 1955–56
8541 made[5]
Assembly United Kingdom
Victoria Park, Australia [6]
Body and chassis
Body style 4-door saloon
2-door estate car
Related Morris Oxford series II
Engine 2.6 L C-Series Straight-6
Transmission 4-speed manual
optional overdrive
Predecessor Morris Six MS

The Series I Isis was launched in 1955 as a replacement for the Morris Six MS. It featured a six-cylinder engine, the 2.6 L (2639 cc/161 in³), 86 bhp (64 kW) C-Series unit from the Austin Westminster. Unlike the Westminster, the Isis had a single SU carburettor. The four-speed gearbox had a column change and was available with an optional Borg-Warner overdrive unit.

The car was based on the 4-cylinder Morris Oxford series II, sharing its almost-unibody shell and torsion bar front suspension. The wheelbase and front end were lengthened to accept the larger straight-6 engine, and a "woody" 2-door estate version was also available. With the strong engine, the Isis could reach 90 mph (145 km/h).

Unlike its sister car, the Austin Westminster, which enjoyed moderate success against the volume-selling Ford and Vauxhall sixes of the time, sales were poor, with only 8,500 sold.

Isis Series II (1956–58)

Morris Isis Series II
Manufacturer BMC
Production 1956–58
3614 made[5]
Body and chassis
Body style 4-door saloon
2-door estate car
Engine 2.6 L C-Series Straight-6
Transmission 4-speed manual, Overdrive optional, Automatic available
Wheelbase 107.5 in (2,731 mm)[7]
Length 178 in (4,521 mm)[7]
Width 65 in (1,651 mm)[7]
Successor Line discontinued in favour of
Wolseley 6/99

The Morris Isis Series II was based on the Morris Oxford series III body but with longer wheelbase and front wings and bonnet to accommodate the 6-cylinder engine.

In line with changes to the corresponding Oxford line, BMC redesigned the Isis for 1956 with updated styling including a more elaborate mesh grille, chrome side strips and small fins. The engine power increased to 90 bhp (67 kW). An automatic transmission option was also added. The manual version had a four-speed box operated by a short gearstick on the right-hand side of the front bench seat. The handbrake lever was just behind the gearstick. Sales remained weak, and the line ended in 1958.

A de luxe saloon with overdrive tested by British magazine The Motor in 1956 had a top speed of 90 mph (140 km/h) and could accelerate from 0–60 mph (97 km/h) in 17.6 seconds. A fuel consumption of 26.2 miles per imperial gallon (10.8 L/100 km; 21.8 mpg-US) was recorded. The test car cost £1025 including taxes. The overdrive unit had added £63 to the price.[7]

There was also a Traveller version with similar rear design to the Morris Oxford Estate car. The Isis Traveller accommodated the spare wheel either within the rear well or, when it was required to use this region for a passenger (the small floor area was hinged with a padded underside so that the passenger faced “backwards”), then the spare would be attached to the nearside, again to the rear of the vehicle. In this way it would be possible to accommodate two adult passengers on the front bench seat next to the driver, three in the middle rear bench seat and one in the very back.


  1. ^ a b Sedgwick, M. (1989). A-Z of Cars of the 1930s. Bay View Books.  
  2. ^ a b c Culshaw; Horrobin (1974). Complete Catalogue of British Cars. Macmillan.  
  3. ^ New British Car For Oversea. The Times, Thursday, Jul 11, 1929; pg. 10; Issue 45252
  4. ^ Baldwin, N. (1994). A-Z of Cars of the 1920s. Bay View Books.  
  5. ^ a b Sedgwick, M.; Gillies, M. (1986). A-Z of Cars 1945–1970. Bay View Books.  
  6. ^ BMC-Leyland Australia Heritage Group, Building Cars in Australia, 2012, page 38
  7. ^ a b c d "The Morris Isis de luxe Saloon".  
This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.

Copyright © World Library Foundation. All rights reserved. eBooks from Project Gutenberg are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.