Chrysler 300 letter series

The Chrysler 300 "letter series" are high-performance personal luxury cars that were built by Chrysler in the U.S. from 1955 to 1965. After the initial year, which was named C-300 for its standard  V8 engine, the 1956 cars were designated 300B. Successive model years were given the next letter of the alphabet as a suffix (skipping "i"), reaching the 300L by 1965, after which the model sequence was discontinued.

The 300 "letter series" cars were among the vehicles that focused on performance built by domestic U.S. manufacturers after World War II, and thus can be considered one of the muscle car's ancestors, though full-sized and more expensive.

The automaker began using the 300 designations again for performance-luxury sedans, using the 300M nameplate from 1999 to 2004, and expanding the 300 series with a new V8-powered 300C, the top model of a new Chrysler 300 line, a new rear-wheel drive car launched in 2004 for the 2005 model year. Unlike the first "letter series" series, the successive variants do not feature standard engines producing at least 300 hp (224 kW), except for Chrysler's current top-line 300C models.

Production numbers

1955 C-300 

This first of the letter series cars did not bear a letter, but can retroactively be considered the '300A'. The 'C-' designation was applied to all Chrysler models; however for marketing purposes the numerical series skipped more than 225 numbers forward in sequence in order to further reinforce the 300's bhp rating. The 300 originally stood for the  engine. The C-300 was a racecar aimed at the NASCAR circuits that was sold for the road for homologation purposes, with Chrysler's most powerful engine, the  FirePower "Hemi" V8, due to the hemispheric shape of the combustion chambers, fitted with twin 4-barrel carburetors, a race-profiled camshaft setup, solid valve lifters, stiffer suspension, and a performance exhaust system. By 1956, this would be the first American production car to top , and the letter series was for many years the most powerful car produced in the United States.

The car's "Forward Look" styling can be attributed as much to the Chrysler parts bin as designer Virgil Exner. The front clip, including the grille, was taken from the Imperial of the same year, but the rest of the car did not look like an Imperial. The midsection was from a New Yorker hardtop, with a Windsor rear quarter. Exner also included base-model Chrysler bumpers and removed many exterior elements such as back-up lights, hood ornament, side trim, and exterior mirrors. An electric clock and two-speed windshield wipers were standard. There were few options available including selection of three exterior colors (red, white, and black) and only one color of tan leather interior. Power windows and power seat were available but air conditioning was not available in 1955.

Measured at  in the Flying Mile, and doing well in NASCAR, the C-300 aroused interest that was not reflected in its modest sales figure of 1,725.

When the C300 competed in NASCAR, it was painted to advertise that it was the "world's fastest stock car".

1956 300B 

The 1956 300B was fairly similar externally, distinguished by a new tailfin treatment, but with larger engines, and a choice of two versions of the  Hemi V8 producing either . A companion of this generation was introduced as the DeSoto Adventurer that was less luxurious, while still sharing much of the mechanicals, giving DeSoto a performance enhanced model. A total of 1,102 were sold. Performance was better than the previous year's by its top speed at almost . A 6.17 ratio rear end was also added to the options. Front leg room was 44.6 inches. New was the Highway Hi-Fi phonograph player.

With the optional   engine, the 300B became the first American car to produce 1 horsepower per cubic inch, besting Chevrolet with their fuel-injected  by one year.

1957 300C 

The 1957 model year 300C was restyled, featuring a "yawning" wide front grille and larger tailfins. The Hemi engine was upgraded to  with , or as a limited edition  version (18 built). A convertible model was available for the first time. The car featured red, white, and blue '300C' medallions on the sides, hood, trunk, and interior. A total of 1,918 coupes and 484 convertibles were built. Air conditioning was a $495 option.

1958 300D

The 1958 model year was to be the last use of the FirePower Hemi in the 300. The engine was still , but tuned to  as standard. Thirty-five cars were built with fuel injection and delivered , but the system was troublesome and most cars soon had it replaced with the standard twin-quad carburetor setup. A 300D was driven to  at the Bonneville Salt Flats that year. A total of 618 hardtops and 191 convertibles were produced, in part due to a recession.

1959 300E

The 1959 model year saw the Hemi engines replaced by Chrysler's new Golden Lion wedge-head V8 at  displacement (which Chrysler called "lion-hearted"). Power output remained about the same at . Total sales included 522 coupes and 125 convertibles. Power swivel seats were standard.

1960 300F

The 1960 300F introduced a new  Wedge engine delivering  in standard form. To boost power at lower and mid rpms, a special "cross-ram" intake manifold was derived. Instead of the normal V8 engine central intake manifold with carburetor(s) on top, the cross-ram consisted of two pairs of  long tuned pipes that criss-crossed so that each set fed the opposite side of the engine. The carburetors and air cleaners hung off the sides of the engine over the fender wells. These long tubes were tuned so that resonances in the column of air helped force air into the cylinders at those engine speeds. Also new were four individual, leather bucket seats with a full length console from dash to rear seatback. Swivelling front seats were fitted as standard equipment.

A special  "short ram" version was produced for competition; in this, the tuned portion of the stacks was only  long (though the overall tube length remained at 30"), so that the resonant effect was produced at higher engine speeds. Only 15 "short ram" cars were produced; these were also fitted with the exotic but often troublesome French Pont-a-Mousson 4-speed manual transmissions developed for the Chrysler-powered Facel Vega. Approximately 4 of these "Special GTs" are known to exist, including one convertible and one with air conditioning; it is believed that 15 were originally produced.

The bodywork was also redone for 1960, using Chrysler's new lightweight unibody construction and given sharper-edged styling with outward-tilting fins that were visually separated from sides. The "toilet seat" trunk lid contributed to a demeaning opinion of the 300F and was done away with after this one year of production.

Sales increased to 969 coupes and 248 convertibles.

1961 300G

The 1961 300G saw another restyle. The grille, formerly wider at the bottom than the top, was inverted; the quad headlights, formerly side-by-side, were arranged in angled fashion, inward at the bottom, in a manner reminiscent of 1958-1960 Lincolns, 1959 Buicks and the 1963-1966 Rolls-Royce Silver Cloud Mulliner Park Ward coupe. Small parking lamps below the headlights were likewise slanted and V-shaped, and the front bumper was canted up at each end, scoop-like. At the rear, the taillights were moved from the fins to the tail below them, and the fins were made sharper-pointed. Power windows were standard.

Mechanically, the cross-ram "short ram" and "long ram" engines remained the same, although the expensive French manual transmission was dropped, and replaced by a more reliable and still expensive Chrysler racing manual transmission (referred to as 'option code 281'). There are currently only five cars with this transmission. Code 281 cars may have been built for the 1961 Daytona Flying Mile, although like the 1960 F Specials, no specific records were kept by Chrysler. Unlike the 300F Specials (which were randomly pulled from the line and upgraded for the Flying Mile), the 300Gs had a specific build code (281).

1962 300H

From 1962s 300H, the fins were gone, as was the letter series' unique place in the Chrysler lineup; there was now a whole Chrysler 300 Sport Series (which included a four-door hardtop along with a two-door hardtop and convertible), along with the 300H. Externally there was little difference between the 300H and the 300 Sport Series (except for a "300H" badge on the driver's side of the trunk), and many of the 300H's features could be ordered as options on the other models. Under the hood of the 300H the cross ram engine became an option, and there was a return to the inline dual 4-barrel carburetor setup of the 300E as the base powerplant. With a slight power boost and a  lighter body, the 300H was faster than the 300G, but the loss of exclusivity coupled with high prices made this the slowest-selling letter series year yet, with only 435 coupes and 135 convertibles sold. The regular 300 (non-letter) series used a  B engine.

All 300s for 1962 were demoted to the Chrysler Newport/Dodge 880 122-inch wheelbase body.

1963 300J

Further restyling for the 1963 300J (the letter "I" was skipped because people would confuse it for the numeral "1".) left the car with a smoother, more angular 1960s look. (Shared with the Newport and New Yorker series, this body design was the last one styled during Virgil Exner's term as Chrysler's styling chief.) The letter-series convertible was dropped, leaving the hardtop. The only engine available was the  ram-induction V8, with an increase of  from 1962. A redesigned and more sumptuous interior featured an oddly squared steering wheel. The 300J was faster than the standard 300H of the year before, with a  top speed, 8.0 seconds 0-60 mph, and a standing quarter mile time of 15.8 seconds with a terminal velocity of . Sales were especially poor, with only 400 cars produced. As for the non-letter 300, the 300 convertible was the official pace car for the 1963 Indianapolis 500-Mile Race. Power steering was standard.

1964 300K

The convertible returned for the 1964 300K, but the "cross-ram" engine became an extra-cost option available on the 300K only. A  Wedge with a single Carter AFB 3614S 4-barrel carburetor, a regular intake manifold, and  was the new standard engine. Leather upholstery was no longer standard either. All this reduced the baseline price by over a thousand dollars, and sales responded with the largest total ever; 3,022 coupes and 625 convertibles. A center console was standard.

1965 300L

The 1965 300L was the eleventh and final model in the traditional letter series. Like every other 1965 Chrysler, it featured a completely restyled body with the crisp lines, slab sides and a tall greenhouse that were introduced by Elwood Engel, successor of Virgil Exner as Chrysler's head of styling. It was a linear look and the panoramic windshield that had been used since 1957 was abandoned. The car had grown two inches in wheelbase and three inches in overall length. Both 2-door hardtop (with crease lines in the roof sheetmetal for the then-popular "convertible look") and 2-door convertible body styles were available. The cross-ram 390 hp engine had been discontinued, leaving the  engine with regular inlet manifold, single 4-barrel carburetion, unsilenced air cleaner, special camshaft and dual exhaust as the only engine option. Engine output was , as in the previous year. The buyer could choose between the standard 3-speed TorqueFlite automatic and the no-cost option 4-speed manual with Hurst shift linkage. Every feature on the 300L could be ordered as an option on the regular 300; thus, the only difference was the 300L-exclusive ornamentation. This consisted of round "300L" medallions at the center of the die-cast grille star and in the middle of the textured aluminum applique between the taillights, a red-paint-filled full-length beltline molding, and a rectangular die-cast "300" badge on rear fenders.
Tested by car magazine Motor Trend, a TorqueFlite-equipped 300L 2-door Hardtop accelerated from  in 8.8 seconds, and covered the quarter mile in 17.3 seconds with a terminal speed of . A total of 2,405 300L hardtops and 440 convertibles were produced.

1970 Hurst 300

The 1970 Hurst 300 lacks the single-letter suffix of its forebears and appeared five years after the last Letter Series Chrysler, the 300L. Many automobile historians do not include the Hurst 300 as a Letter Series model. The concept of the car, however, does fit with the Letter Series cars, as it was a high-performance variant of the luxury 300, built with the input of aftermarket parts manufacturer Hurst Performance. Only 501 units are believed to have been built.

The Hurst 300s were all 2-door and shared a white and gold paint scheme similar to the Oldsmobile and Pontiac Hurst models of the day. The scooped hood and trunk lid (with a molded spoiler) are both fiberglass. All Hurst 300s had satin tan leather interiors that were straight out of the Imperial and could be had with column- or console-mounted 727 automatics. All came with the    4-barrel TNT V8 engine.

Of the 501 units sold, one convertible is documented having been used as a Hurst promotional car and another is believed to have been dealer equipped with a  Hemi, also, a convertible.

Collectibility 
All original letter series cars are considered collectible , but the early years are much more desirable. The C-300 and 300B, especially red/maroon examples, are increasingly becoming some of the most valuable models of all 1950s performance cars due to their exquisite styling, high performance, and rarity.  The 300C through 300G convertibles are the most desirable price-wise due to their scarcity and low survival rates; the coming of the regular 300 series cars in 1962 makes the subsequent letter series seem less special and less desirable to collectors.

At an auction at the Robson Estate in Gainesville, Georgia on November 13, 2010, the sole 1960 300F convertible equipped with the factory  engine and the Pont-a-Mousson 4-speed sold for $437,250.

There was one concept vehicle called the Chrysler 300, created in 1991. It featured a sports car body and a Viper engine. It was never produced.

The 300 letter series name was resurrected in 1999 on the Chrysler 300M; but it is the 2005 300C that is closest to the original with its rear-wheel drive, and V8 engine once again bearing the "Hemi" name.

See also 
 Chrysler 300
 Chrysler FirePower engine
 Chrysler RB engine
 Hemi engine

References

External links 

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