300 H – THE FIRST OF THE LAST
By Gil Cunningham

Reprinted from the 1974 Club News Volume II Number I

The year 1962 was a significant one for the Chrysler 300 Letter Series automobile – albeit in a rather negative sense. One aspect of this “negative significance” is, in fact, implied in the wording of my first sentence. Prior to 1962 there would have been no need to clarify the 300 as a letter series – the Chrysler 300 name plate had applied to only one possible car.

Chrysler Corporation was not in good financial shape in late 1961. They had weathered loss years in 1958 and 1959, and, after a reprieve in 1960, were sinking towards another in 1961. Only well received 1962 model introduction in the fourth quarter kept 1961 books in black ink.

Part of this successful 1962 model acceptance was due to the introduction of an “additional” Chrysler 300. In an effort to bolster sales by capitalizing on the well-known 300 name, Chrysler dropped the mid-range Windsor series, and replaced it with a sportier model called the “300.” Marketing wise, this was a good decision and the “Windsor-300” sold very well. Unfortunately, the dilution of the 300 nameplate accompanied dilution of the letter series car itself. The 300-H shared the shorter wheelbase body of the “300” and Newport. In fact, it was virtually indistinguishable from the new “300.” As a result, only 558 300-H automobiles (435 hardtop coupes and 123 convertibles) were built – the lowest 300 production to that date.

The most dramatic styling changes for 1962 were the rear quarters. Now devoid of fins, they in fact sloped downward to the tail light. These new sculptured quarters were, unfortunately, shared with the Dodge 880 of that year, and although attractive, did have somewhat of a “tacked on” or late “change of mind” look. This illusion may result because the rest of the car was virtually unchanged from 1961.

At any rate, Chrysler Corporation was following the industry trend away from tail fins during the difficult and more practical economic times of the early sixties. It might be well to note here that these were the developmental stages of a basic change in Chrysler philosophy to follow rather than lead, especially in styling. This unfortunate policy has generally continued through good and bad times to the present.

For the first time, the 300 was built on the shorter 122” wheelbase, the 4 inch shortening occurring forward of the doors. The resulting decreased hood length is perhaps most noticeable from behind the wheel. For the restorer, however, the change was probably beneficial since many more “short” fenders would be available in junkyards than the longer New Yorker units. 1961 Windsor and Newport fenders will also interchange.

Grille changes from 1961 were very subtle, since the basic opening and canted headlight styling was retained. The grille shell does not have the word Chrysler as it did in 1961. The 1962 inner shell had a raised bead at its inner edge around the opening and the cross ends were relieved to clear. Therefore, a 1962 cross will fit in a 1961 shell, but not the reverse. Grille background was also new, the 300-H utilizing a less expensive expanded aluminum screen to replace the extruded assembly in the 300-G. Last, but certainly not least, the grille medallion had no letter under the 300 and was shared with the “Windsor-300.”

From the exterior, there is only one way, so far as I know, to tell a 300-H from the other “300” – a small chrome “H” after the 300 on the deck lid. The special 15” 300 wheelcovers are a good indication, but these were used on non-letter 300s when ordered with the 380 HP engine. Incidentally, for 1962, the color around their center spinners was changed to black.

The 300-H was available in four solid colors only, as shown below:

300H Exterior Colors

Code

Ditz No.

Oyster White

WW-1

8293

Formal Black

BB-1

9000

Festival Red

PP-1

71203

Carmel

ZZ-1

22095

Convertible tops were available in either black or white.

As in previous years, a few 300-H’s may have been special ordered in paint colors other than these. I have not, however, seen any that could be verified.

The 300-H continued the same basic four individual seating design used in the F and G. There were numerous interior changes however, many of which were intended to reduce cost.

The entire interior was now tan instead of the lighter beige used in 1961. Seats returned to the 300-F pattern, but used more vinyl panels. Carpets were changed from black to golden tan. The instrument panel was a metallic tan as was the crash pad. Gone were the integral door arm rests of the F and G. The “H” arm rests were conventional molded units which attached to the door trim panels (which had embossed piping yet!) by screws. Another foreboding interior change was the replacement of the traditional 300 horn button medallion with one incorporating the red, white, and blue colors around its circumference. For those students of esoteria, the floor aluminum heel and retaining plates had a different surface design than the F and G!

An interesting change in the 300-H was the use of individually adjustable, but non-swiveling front seats. Unfortunately, only manual adjustment was available, and the versatility of a six or four-way power unit could not be achieved. Power windows, steering, and brakes were standard, as before. For the first time since 1959 auto pilot was optionally available. In 1962 as in 1961 mirrormatic could be obtained only as a dealer installed item.

I hope the preceding paragraphs have not sounded like I might be “down” on the 300-H. I am not really (I own and enjoy an “H” convertible); however the thought of what became of the 300 letter series cars in succeeding years, starting in 1962, is always in the back of ones mind, dampening the enthusiasm. Fortunately, there is one specific area of the 300-H where it may be impossible to be over enthused – performance! Because of the 122” wheelbase, the 300-H was around 10 percent lighter than an F or G which would give it an acceleration edge with the same engine. But the standard “H” engine was a higher winding slightly higher horsepower unit. The long exotic rams were replaced with a conventional in line 2-4 barrel carburetor arrangement, the cam was wilder and the lifters were solid. The power plant was coupled to a completely new aluminum cased Torqueflite which featured larger diameter bands and planetary gear carriers, lighter weight, smaller overall size (not too important in a 300-H with its console) and manually controlled shifts when desired (which was most of the time). But there was more for the lead foot. Adding short rams (same overall length but siamesed inside) and a wilder cam brought the 413’s horsepower up to 405 at 5400 RPM. This engine seems to have been available in the car from the factory, but I cannot confirm this and have never seen such a vehicle. One could go further, however. 1962 specifications list five additional 426 cubic inch wedge head engines available through Chrysler dealers for racing only, culminating with a 421 HP 498 ft lb. torque macho job! The chart below will serve, it is hoped, to clarify this maze of engine options:

Displacement

413

413

426

426

426

426

Horsepower @ RPM

380 @5200

405 @ 5400

373 @ 4800

385 @ 4800

413 @ 5400

421 @ 5400

Torque @ RPM

450 @ 3600

473 @ 3600

472 @ 3200

486 @ 3200

485 @ 3600

498 @ 3600

Comp. Ratio

10.1/1

11.0/1

11.0/1

12.0/1

11.0/1

12.0/1

Carb & Manifold

2-4 BBL Runner

2-4 BBL Ram

1-4 BBL ** Runner

1-4 BBL ** Runner

2-4 BBL Ram

2-4 BBL Ram

Intake duration

2680

2840 *

2920

2920

3080

3080

Exhaust duration

2680

2840 *

2920

2920

3080

3080

Overlap

480

550 *

670

670

880

880

Intake lift (zero lash)

.444

.449

.490

.490

.520

.520

Exhaust lift

.456

.454

.490

.490

.520

.520

Exhaust valve diameter

1.60

- 1.74 or optional 1.88 (stage III heads) -

Intake valve diameter

2.08

2.08

2.08

2.08

2.08

2.08

Carter Carb

F: AFB-3258-S
R:AFB-
3259-S

Two
AFB-3084-S

One
AFB-3397-S

One
AFB-3397-S

Two
AFB-3084-S

Two
AFB-3084-S

Transmission

3 Spd.
Man. or Torqueflite

3 Spd.
Man. or Torqueflite

3 Spd.
Man.

3 Spd.
Man.

3 Spd.
Man. or Torqueflite

3 Spd.
Man. or Torqueflite

*Later production 405 HP engines used 2920 - 2920 - 670 cam

**NASCAR rules allowed only one four barrel carb.

These engines were all available in the “non-letter 300” and 300-H. When a non-letter was so equipped 15 inch wheels with 300H wheelcovers and a 150 MPH speedometer were included. I personally doubt that any 300-H was built-up with a 426 engine – these would have been used in the lighter “300” for racing purposes only. The 300-H, even without 426 power, still possesses the distinction of being the most powerful 300 ever available.

Performance of the standard 300-H was exceptional, and the 405 HP job was fantastic. Hot Rod Magazine fine tuned one of these 405 engines for drag racing and achieved runs as low as 12.88 seconds elapsed time and 108 MPH.

All magazine road tests of the 300-H lauded its performance, but I found it surprising that they also praised its braking, since the brakes were the same 251 square inch units as previous years. Now, we all love our 300s, but most owners of pre-1962 models will reluctantly admit not being too impressed with the high speed performance of their brakes – not much room between pedal and floor after that second 80 to 0 stop is there, old chap? Oh well, I suppose even a Chrysler 300 must have at least one minor deficiency. At any rate, the 300-H brakes had to stop around 440 less pounds than in 1961 and this apparently resulted in their greater effectiveness.

The 300-H suspension was still firmer than other Chryslers, but for the first time, not as much firmer. Torsion bar rate at the wheel was 130 lbs. per inch as compared to 175 for the 300G. Rear spring rate was 125 lbs. per inch while the 300G springs were 130 to 140. It must be remembered, of course, that because of its lighter weight, the 300-H would not require as high spring rates for the same handling performance. The front anti-roll bar was .75 inches in diameter, down from .82 on the “G”.

To complete the performance image the “300” and 300-H were expected to uphold, 19 different axle ratios were available, ranging from 2.76/1 to 6.17/1.

Any Chrysler 300 trivia nuts among our readers will have a field day with the 300-H; highest horsepower optional engine;, highest torque optional engine; most engine options; most rear axle ratios, technically, the first letter availability with a single four barrel (300K and L owners take heart!); to list a few. The possession of so many esoteric “first” and “mosts” by the 300-H is more understandable after one analyses conditions surrounding its introduction. Chrysler may not have really known what to do with a large super car in 1962. Compact and semi-compact cars with nearly as powerful engines were just starting to emerge as the future performance cars – and at a much cheaper cost. So, the 300-H (and “300”) were provided enough options to enable them to compete at the drags as well as NASCAR (in theory at least). So far as I know very few hot Chryslers were campaigned in either event. The new “B” body Plymouths and Dodges had less weight for dragging and less wind resistance for top speed competition.

However, the 300-H, with its lighter weight and 380 HP engine combining to form one of the greatest 300 letters ever, provided handling and highway cruising in the tradition of its predecessors. And too, ownership of a 300-H is ownership of the second rarest 300 hardtop or the rarest 300 model of all, the H convertible. It is, of course, unfortunate that much of this fine car’s identity was concealed in a standard appearing exterior. However, as every 300-H owner or vanquished competitor is aware, the only “standard” feature of the “H” was the exterior!