BO29 - 1968 Plymouth S/S Hemi Barracuda
For many years, dropping the Hemi engine into the
Barracuda was a popular way to gain dominance
at the dragstrip. Chrysler, with the help of Hurst,
sought to duplicate
the efforts from the factory. Chrysler would build
the Barracudas and ship them to Hurst for
the final conversion.
The hood and fenders were fiberglass. The front
bumper and doors were light-gauge steel. There
was a Bostrom driver seat installed in the gutted
interior. Getting the 426 Hemi into the engine
bay took some modifications. The battery was
moved to the truck. Both the right shock tower
and master cylinder had to be moved. Custom
headers, shift linkages for the four-speeds,
and special rear-axle assemblies from Hurst.
The cars came with street tires and a shallow oil
pan off the trailer. Install slicks, a deeper oil
pan, camshaft and valvetrain and you were into the
10s... easy. The S/S Hemi Barracudas were delivered
in early May so they would be ready to qualify for
the NHRA Spring Nationals.
R.D. McLaughlin, Chrysler-Plymouth general sales
manager, outlined for dealers and racers what they
could order. Here is the letter:
February 20, 1968
To: All Plymouth Dealers
Subject: 1968 Hemi Barracuda Super Stock
The Chrysler-Plymouth Division offers for the 1968 models
a 426 Hemi-Powered Barracuda Fastback for use in
supervised acceleration trials. These cars will weigh
approximately 3,000 pounds and have been designed to
meet the 1968 specifications of the major sanctioning
drag strip organizations.
The Hemi-Powered Barracudas will be available through
production in limited quantities in March. To order
this vehicle, use the Barracuda Order Form and specify
Body Code BO29 and Transmission Code, either 4 Speed
Manual, Code 393, or Automatic, Code 395. No other
specifications are necessary.
Description of Components
For Manual Transmission Only
- 426 cu. In. 8-cylinder engine with dual 4-barrel
carburetors-12.5 to 1 compression ratio.
- Cross Ram Intake manifold.
- 1 11/16" x 1 11/16" Holley carburetors.
- Competition Hooker headers, exhaust pipes, and mufflers.
- High capacity oil pump.
- Roller timing chain (reduced timing chain stretch for
more consistent engine performance).
- Mechanical valve gear.
- Dual breaker distributor.
- Transistor ignition.
- Metal core type ignition wires.
- Unsilenced air cleaners.
- Deep groove fan drive pulleys.
- Heavy duty radiator.
- Aluminum seven-blade fan equipped with Viscous drive.
- Special offset 15" rear wheels.
- Chrysler-built 8 3/4" large stem pinion gear set, and
heavy-duty axle shafts with automatic transmission
(4.86 axle ratio).
- Dana-built 9 3/4" heavy-duty axle with manual transmission
(4.88 axle ratio).
- Sure-Grip differential.
- 135 Amp. Hr. battery (located in rear compartment).
- Heavy-duty high control rear suspension.
- Front disc brakes 41/2" Bolt Circle.
- Fiberglass front fenders.
- Fiberglass hood with scoop.
- Light weight steel doors.
- Light weight front bumper.
- Light weight side window glass.
- High capacity fuel lines.
- Business coupe interior (2 bucket seats - no rear seat).
For Automatic Transmission Only
- Special heavy-duty 10 1/2" clutch and flywheel.
- Safety steel clutch housing.
- Competition "Slick Shift" 4-speed transmission.
- Hurst remote mounted floor-shift unit with reverse lockout.
- High stall speed torque converter (large drive lugs
and 7/16" diameter attaching screws).
- Heavy-duty manual shift TorqueFlite transmission.
- Hurst floor-mounted shift unit.
The following items are deleted on this body type:
Heater, Body Sealer and Sound Deadeners, Silence Pads,
Outside Mirrors, Right Side Seat Belt and Body Color Paint.
NO OPTIONAL EQUIPMENT OF ANY KIND CAN BE ORDERED
The policy of Chrysler Corporation is one of continual improvement
in design and manufacture, wherever possible, to insure a still
finer car. Hence, specifications, equipment and prices are subject
to change without notice.
These vehicles are intended to use in supervised acceleration trials
and other competitive events, therefore, they will be sold without
warrant. Special stickers will be provided for plant installation
(attached to left "A" post) which will read as follows: "This vehicle
was not manufactured for use on public streets, roads or highways
and does not conform to Motor Vehicle Safety Standards.
All customer orders must be accompanied by a signed disclaimer (sample
attached) indicating that the purchaser understands that this vehicle
is sold without warranty and does not conform to Federal Vehicle Safety
Any prospective customer who desires to purchase one of these maximum
performance vehicles should be made aware of the following
characteristics which make them unsuitable for general use.
A high idle speed is required to insure adequate lubrication, minimize
roughness, and to keep the engine from stalling.
The modified intake manifold causes a rich surging condition, misfiring
and unstable engine operation in cold weather, which makes ordinary
street driving extremely difficult and it is not recommended for this
Higher than normal oil consumption will be encountered because of
increased lubrication to the valve train and cylinder walls.
The carburetors are calibrated for maximum power and a high numerical
axle ration is used for acceleration. As a result, the gas mileage is
considerably less than for a conventional car.
Engine noise would be objectionable due to increased piston clearance
and mechanical valve tappet clearance.
The ignition system is designed for optimum engine output and must be
kept in top condition. This makes it necessary to inspect, adjust
and replace the spark plugs and ignition points more frequently than
would be necessary on a standard engine.
On car equipped with automatic transmission, band adjustment must be
Due to performance characteristics, maintenance and operating expense
will be high since premium fuel is required and frequent oil changes
are a MUST.
Does not conform to Motor Vehicle Safety Standards.
Warranty and Policy Coverage
Any customer purchasing this model vehicle should be advised that due
to the expected use, the vehicle is sold "as is" and the 24 month or
24,000 mile vehicle warranty coverage, the 5 year or 50,000 mile Power
Train Warranty coverage, or any other warranty coverage (including,
but not limited to the implied warranties of fitness for purpose
intended or merchantability) will not apply to the vehicle. The
manufacturer assumes no responsibility for the manner in which
such vehicles operate.
Any repairs or adjustments which you believe warranty
factory participation should be brought to the attention
of your Regional Service Office
where such requests will be handled on individual merits.
Attached is a form letter (to be prepared on your
letterhead) which should be thoroughly
understood and signed by each prospective purchaser and
attached to your order for each
Hemi Barracuda Super Stock. The purpose of the letter is
to explain the normal operation
characteristics of these vehicles and clarify that the
warranty coverage's do not apply. Be
sure a letter in this form, signed by your customer, is
included with your order so there will be no delay.