Tag Archives: Fireball

Toothbrush Not Included – Buick Roadmaster Riviera

As some of you may have noticed I some times identify vehicles incorrectly, another misidentification came to light while I was looking into the identification of today’s featured 1950 Buick Roadmaster Riviera. It turns out that the curved ‘observation car’ windscreens on Buick Roadmaster’s were first seen in 1949 and therefore the Jetback Sedanet Coupé I looked at last April must be a 1949 model and cannot be a flat screen 1948 model. I live and learn and hope that you will bear with me while I inevitably make a few mistakes. Please do not hesitate to chip in and correct these errors as and when you see them.

Buick Roadmaster Riviera, Classic Motor Show, NEC, Birmingham

Back today’s 1950 Roadmaster Riviera which is immediately identifiable by the huge teeth in the grill unique to the 1950 model. When these cars were first seen in public one journalist is reported to have said “a toothbrush for the dentures comes extra.”

Buick Roadmaster Riviera, Classic Motor Show, NEC, Birmingham

Like all Roadmaster series Buicks the mandatory motor remained the 5247cc / 320 cui “Fireball” straight eight, it would not be until 1953 that a Nailhead V8 would become available.

Buick Roadmaster Riviera, Classic Motor Show, NEC, Birmingham

The pillarless Roadmaster Riviera coupé was one of 18 1950 Roadmaster variations which broke down into Jetback Sedanet, Tourback Sedan, Estate / Station Wagon, Convertible, Hardtop and Pillarless Coupé body styles.

Buick Roadmaster Riviera, Classic Motor Show, NEC, Birmingham

Just as the Fireball motor was standard so was the 2 speed Dynaflow transmission which was derived from a World War 2 tank transmission.

Buick Roadmaster Riviera, Classic Motor Show, NEC, Birmingham

This Roadmaster Riviera was given the 76R model code with the body code Fisher Style 4737. Fisher was a bodywork operation that was gradually absorbed into General Motors between 1926 when GM bought 60% of the stock and 1984 when the Fisher Body entity was dissolved thanks to mergers with other GM operations.

Buick Roadmaster Riviera, Classic Motor Show, NEC, Birmingham

Thanks to the popularity of the Buick Special sales of all Roadmasters fell by over 13,000 to 75,034 in 1954 representing just 12% of Buicks 1950 output.

Thanks for joining me on this “Tooth Brush Not Included” edition of “Gettin a li’l psycho on tyres” I hope you will join me again for Ferrari Friday. Don’t forget to come back now.

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Fireball Dyna Flow – Buick Roadmaster Coupé

From 1936 to 1996 Buick manufactured eight generations of Roadmaster, with an interruption from 1959 to 1990, Roadmasters were Buicks flagship model from 1946 to 1957 sharing underpinnings with contemporary entry level Cadillacs and senior Oldsmobiles.

Buick Roadmaster, Desert Classic, Palm Springs

The car seen in Geoffrey Horton’s photo’s seen here at the 2012 Ranchero Mirage Desert Classic Concours d’Elegance feature a 1949 Roadmaster from the first year of production of the fifth 1949 -1953 generation which were the first to feature a two part curved ‘observation car’ windscreen. Note the bombsite mascot is a feature of all post 1946 Roadmasters.

Buick Roadmaster, Desert Classic, Palm Springs

The three Ventiports on front wing / fender of this Roadmaster indicates that is probably powered by a 5.2 litre / 320 cui ‘Fireball’ straight eight motor originally good for 165 hp, which following a change in carburation dropped to 144 hp in 1946 but was raised again in 1949 to 150 hp by increasing the compression ratio.

Buick Roadmaster, Desert Classic, Palm Springs

New for 1948 was a two speed Dyna Flow transmission developed from Buicks tank manufacturing program during the Second World War, making this the first model ever to be sold with a torque converter. For 1949 Dyna Flow became the mandatory transmission on all Roadmasters.

Buick Roadmaster, Desert Classic, Palm Springs

When the Roadmaster was first launched in 1942 the Coupé featured the same fastback Sedanette styling that had been a sensational feature of the 1941 Buick Century and Special models.

Buick Roadmaster, Desert Classic, Palm Springs

During 1949 the Roadmaster accounted for 27% of Buicks production with around 88,130 units sold.

My thanks to Geoffrey Horton for sending me his photographs.

Thanks for joining me on this ‘Fireball Dyna Flow’ edition of ‘Gettin’ a li’l psycho on tyres’, I hope you will join me again tomorrow. Don’t forget to come back now !

Errata this vehicle was originally incorrectly identified as forth generation 1948 model, however since then it has become apparent that 1948 Roadmasters had a flat windscreen and did not feature the VentiPorts in the wings / fenders. This text has been updated to reflect details of the ’49 Roadmaster. Apologies for any confusion caused.

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