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Howard Marmon’s first cars were advanced machines, featuring air-cooled V4 engines of oversquare dimensions, with mechanically-operated overhead valves and pressure lubrication. Something approaching independent front suspension was achieved on Marmon cars by the use of double-three-point suspension, with a separate sub-frame for engine and transmission. Only the 2-speed gearbox of planetary type conformed on the Marmon cars to American practice of the period. These Marmon cars persisted until 1908, though 1907 brought the introduction of selective sliding-type gearboxes on the Marmon car and a short-lived 60hp V8. In 1908 buyers of Marmon cars had the choice of air or water cooling and cylinder heads were detachable. The following year Marmon went over to conventional T-head in-line fours rated at 40/45hp and 50/60hp, and two years later only the 5.2-litre Model 32 Marmon car with rear-axle gearbox was listed. Marmon cars did well in contemporary competition, with 54 1st places logged with a Marmon car between 1909 and 1912; Ray Harroun won the first Indianapolis 500 in 1911 with a specially-built 6-cylinder Marmon car, the well-known Marmon Wasp. An enormous 9.3-litre six rated at 48hp was available in 1914.
In 1916 the advanced ohv 6-cylinder Marmon 34 with aluminium cylinder block, body, bonnet and radiator shell, and double transverse rear suspension was introduced. The engine capacity of this Marmon car was 5½-litres, and its output 74bhp; developments of this Marmon car were still listed as late as 1927, acquiring Delco coil ignition in 1920, and the option of a Marmon car with front wheel brakes in 1923. The Marmon cars were expensive: $5.000 was asked for a touring car in 1921. A not very successful 3.1-litre ohv straight-8 in the Marmon car appeared in 1927, but the following season only Marmon cars with eights were made, the cheapest sv Marmon 68 selling for $1.395. In 1928 Marmon also entered some front-wheel-drive Marmon cars at Indianapolis, but they were in fact only revamped Millers. The Marmon car company sold 22.300 Marmon cars in 1929, thanks to a cheap new straight-8 at under $1.000, the Marmon Roosevelt. This brandname, however, did not last, for the Marmon car appeared in the 1930 programme as the Marmon R, along with three other eights, the sv 69, and two big ohv Marmon cars with 4-speed gearboxes and capacities of the 4.9- and 5.2-litres respectively.
Marmon cars swansong was the magnificent 9.1-litre 200bhp 16-cylinder model of 1931. This Marmon car was beautifully proportioned, and had an alloy engine. The list price of the Marmon car was $4.925; there was a companion Marmon 8-125 in 1932, but only the Marmon Sixteen was listed for 1933. At the very end Marmon was testing a Marmon car with a 150bhp V12 with independent front suspension, De Dion rear axle, and tubular backbone frame, but this never saw production.
Source: Georgano, encyclopedia of motorcar; MCS
The information is written with the greatest of care. However, if you have any suggested amendments please contact us at office@prewarcar.com
The 4-cylinder 21hp Plymouth car appeared in 1928 at a list price of $725 for a sedan. This Plymouth car replaced the earlier 4-cylinder Chryslers and represented a serious challenge for Ford and Chevrolet in their lowest price class. The Plymouth car had side valves, internal-expanding hydraulic brakes and ribbon-type radiator and gave the Plymouth car a close resemblance to the 1928 Chryslers and De Sotos, and Plymouth cars sold over 100.000 in its first year, even improving its sales position in the bleak economic climate of 1932. Plymouth cars adhered to four cylinders until 1933, when the Plymouth PD-series 6-cylinder was listed at less than $600. 1934 de luxe models of Plymouth cars had independent front suspension, but this was dropped after a year and did not reappear for some time on Plymouth cars. The standard engine in the later 1930 Plymouth cars had a capacity of 3.3-litres, rather smaller than that used in comparable Chevrolets and Fords: a small-bore 2.8-litre version Plymouth car was made for export up to 1939, but the name Plymouth was not usually found on Plymouth cars sold in England, which were nominally Chrysler Kew and Wimbledon sixes. After World War 2 evolution followed that of other Chrysler Corporation cars closely, the old-fashioned styling losing the Plymouth car division its long-held third place in American sales to Buick. Further, Plymouth cars retained the L-head six as its staple power unit right up to 1955, when Flight Sweep versions were introduced with over-square ohv V8 engines on accepted American lines in a variety of powers from 157 to 177bhp. The capacity of these Plymouth cars had 4.3-litres, while the six, now of 3.8-litres, remained available. These 1955 Plymouth cars were lower and longer than their predecessors and could be obtained with synchromesh, overdrive or automatic gearboxes.
The Plymouth Fury models of the ensuing decade represented a breakaway from the traditional Plymouth stolid family car, while the Plymouth Car Division was also responsible for Chrysler’s contribution to the compacts, the Plymouth Valiant launched for 1960. This Plymouth car had rather more European styling than its competitors, with a dummy spare-wheel moulding on the tail; interesting items of specification were the unitary construction of the Plymouth car, alternator ignition, and inclined in-line 2.8-litre ohv 6-cylinder engine. The influence of the Plymouth GT car on America resulted in the Plymouth Barracuda of 1965, a fastback coupé using the Valiant’s 8ft 10in wheelbase and a 4½-litre V8 power unit. Plymouth cars, like Ford and Chevrolet, was aiming at comprehensive coverage of the low and medium price market in 1966, with the compact Plymouth Valiant, the sports-compact Plymouth Barracuda, the medium-sized Plymouth Belvedere, the full-size Plymouth Fury, and the luxurious ‘VIP’ 4-door hardtop Plymouth car, offered only with a 5.2-litre V8 engine and selling for $2.930. An increasing emphasis on sporting Plymouth cars was detectable by 1968, when in addition to the established Barracuda there were two other sports coupés Plymouth car, the Plymouth GTX and the Plymouth Road Runner. All three Plymouth cars were available with 4-speed manual gearboxes and the 6.981cc 425bhp hemi-head V8 also used by Dodge. In 1970, when Valiant prices started at a low $2.172, there was also a Valiant sports coupé, the Plymouth Duster.
In 1971 Plymouth car company added a sub-compact to their Plymouth car range when they offered the 1½-litre Hillman Avenger as the Plymouth Cricket. The 1972 range of Plymouth cars embraced the Valiant on a 9ft wheelbase, the Barracudas and Satellites, and the full-size Furys with V8 engines and automatic transmission as standard. Engines in the Plymouth cars ranged from the Valiant’s 3.2-litre and 3.7-litre sixes up to the largest Chrysler unit, a V8 of 7.210cc. Electronic ignition was offered on the costliest Barracuda model. Casualties of new Federal regulations were the hemi-head engine and convertibles, and the same range Plymouth cars with minor improvements, among them manually-operated sun roofs, was offerd in 1973.
Source: Georgano, encyclopedia of motorcar; MCS
The information is written with the greatest of care. However, if you have any suggested amendments please contact us at office@prewarcar.com

