1968 Plymouth Barracuda Fact Sheet

1968 Plymouth Barracuda Facts, Figures, and Specifications

Five Fast Facts You May Not Know

1968 Barracuda Fastback

1968 Plymouth Barracuda Facts Specifications Information Data

Click Here

1. New 318 CID v-8 Replaces the 273

1968 Plymouth Barracuda Facts Specifications Information Data

2. Fifty Barracudas Get 426 Hemi for Super Stock.

1968 Plymouth Barracuda Facts Specifications Information Data

3. New 340 CID V-8 Creates 340 S

1968 Plymouth Barracuda Facts Specifications Information Data

Click Here

4. Special Savage GTs were Built by AutoCraft

1968 Plymouth Barracuda Facts Specifications Information Data

Click Here

5. 383 CID V-8 Upgraded with Road Runner Parts

1968 Plymouth Barracuda Facts Specifications Information Data

Click Here

1968 Barracuda – New Engines

The “Barracuda” script was moved to the cowl side front fender region, now above engine or model logos. The 273 CID V-8 was no more, with the base engine the 318 CID V-8. Significant was the all-new 340 CID performance V-8. Thus, the 340 Formula S replaced the 273 CID Formula S. The new 383 Formula S V-8 now boasted 300 HP.

Return to the Plymouth Fact Center

1968 Plymouth Barracuda Facts: Resources

Equipment or products directly related to this car. Click to view:

Need New Springs or Shocks?
Get the Exact Springs for your Plymouth Barracuda

Click Here for

Barracuda

1968 Plymouth Barracuda Facts – Body Paint Color Codes

Click on the Paint Code Name to See the Mix Codes for the appropriate color:

1968 Barracuda

	A Silver
	B Black
	E Midnight Blue
	F Mist Green
	G Forest Green
	J Ember Gold
	L Surf Turquoise
	M Turbine Bronze
	P Matador Red
	Q Electric Blue
	R Burgundy
	S Sunfire Yellow
	T Avocado Green
	U Frost Blue
	W White
	X Satin Beige
	Y Sierra Tan
	Z Hawaiian Blue

Collector Car Insurers

Click on the links below to find your car’s value or get a quote:

1968 Plymouth Barracuda Facts and Specifications

General Year Information – 1968 Plymouth Barracuda

The big news for Barracuda this year was the release of four engine options. Buyers could now have the 225 CID I-6, a 318, 340 or 383 CID V-8 under the hood. The 340 CID V-8 was a Barracuda exclusive, while the 383 was upgraded with the parts assigned to the mid-size Road Runner. The 273 CID V-8 was retired from the Barracuda line and replaced with the redesigned 318 CID V-8. Barracuda standard powerplants were either the 225 CID Six or 318 CIDV-8 along with a three-speed manual transmission.

Hemi Barracudas
Chrysler made fifty fastback Barracudas equipped with the 426 CID Hemi for Super Stock drag racing. These cars were assembled by Hurst Performance and featured items such as lightweight side glass, fiberglass front fenders, hood scoop, lightweight seats, no sound deadener, and even the rear seats omitted. A sticker indicated that the car was not for use on public roads. It was a beast – it could run the quarter-mile in the mid-ten second range.

Savage GT
AutoCraft, a private contractor developed a super-high performance version of the Barracuda, called the Savage GT, with either 340 or 383 CID power. The car had revised suspension for sport car competition, and the engines received additional tweaks for more power. The Savage GT was built in Wisconsin. It had special wheels, side pipe exhaust, a fiberglass trunk lid with molded spoiler, a modified grille, and a roll bar. The tail panel and grille had “Savage” badges. In 1969, it was available with modified 340, 383, and 440 CID V-8s. Few were sold in 1968 and after a short run in 1969, the company closed shop.

1968 Plymouth Barracuda Factoids

Click a Tab to See the Details

The 383 CID V-8 was rated at 300 HP @ 4,200 RPM and 400-lb.ft. of torque @ 2,400 RPM. The “906” heads were sourced from the 440 CID V-8. They had 2.08-inch intake & 1.74-inch exhaust valves with a compression ratio of 10.0:1. The camshaft had 256/260 degrees duration & 0.425/0.435-inch lift. A Carter AVS carburetor was mounted on a dual-plane, cast-iron intake, and a dual-breaker ignition was fitted. Specific exhaust manifolds were designed to fit the B-engine into the A-body and unfortunately, were more restrictive.

The new 340 CID V-8 was a true performance engine and was based on the LA-series small-block. The engine made 275 HP @ 5,000 RPM and 340 lb. ft. of torque @ 3,200 RPM. The heads had larger ports & 2.02/1.60″ valves, with a compression ratio of 10.5:1. Automatic transmission Barracudas had a camshaft with 268/276 degrees duration and 0.429/0.444-inch lift. The 4-speed transmission cars had a camshaft with 276/284 degrees duration and 0.444/0.453-inch lift.

1968 Plymouth Barracuda Facts – Models Offered

Click a Tab to See the Details

Hardtop – All models were available with the same equipment, with the only difference being the body style. The hardtop is considered the base car, but this is incorrect as the buyer could choose any of the three and then equip them as they chose.

Nameplates and engine identification badges were moved to the cowl side front fender region. A vertical blade grille replaced the former crosshatch mesh type. The word “Plymouth” appeared, in block letters, on the left-hand hood lip. Taillights were slightly changed and the rear deck panel received a black-out treatment.

Standard equipment included either the 225 CID Six or 318 CID V-8. The three-speed manual transmission, carpeting, chrome hood louvers, full instrumentation,; Rallye lights, heater and defroster, left-hand outside rear view mirror, energy absorbing steering column, dual brake system with warning lamp, emergency flasher, inside day/night mirror, front and rear seat belts; padded sun visors, two-speed wipers with washers, padded dash, front bucket seats were optional, and Deluxe wheel covers.

Fastback Coupe – All models were available with the same equipment, with the only difference being the body style. The hardtop is considered the base car, but this is incorrect as the buyer could choose any of the three and then equip them as they chose.

Standard equipment included either the 225 CID Six or 318 CID V-8. The three-speed manual transmission, carpeting, chrome hood louvers, full instrumentation,; Rallye lights, heater and defroster, left-hand outside rear view mirror, energy absorbing steering column, dual brake system with warning lamp, emergency flasher, inside day/night mirror, front and rear seat belts; padded sun visors, two-speed wipers with washers, padded dash, fold-down rear seat, front bucket seats were optional, and Deluxe wheel covers. Also standard on the fastback was a fold-down rear seat.

Convertible – All models were available with the same equipment, with the only difference being the body style. The hardtop is considered the base car, but this is incorrect as the buyer could choose any of the three and then equip them as they chose.

340 and 383 S Package – The Formula S Package was an option on all body styles and had the same standard features but had the following additions: either a 340 CID or 383 CID high-performance V-8; either a four-speed manual transmission with heavy-duty clutch, or specially prepared automatic transmission. Also included were wide width wheels, heavy-duty suspension, white or red stripe wide oval tires, dual exhausts, stainless sill moldings and special instrumentation.

1968 Plymouth Barracuda Facts – Engines

Click a Tab to See the Details

225 CID I-6. Overhead valves. Cast iron block. Four main bearings.
Displacement: 225 cubic inches.
Bore and stroke: 3.400 x 4.125 inches.
Compression ratio: 8.40:1.
Horsepower: 145 @ 4000 RPM.
Torque: 215 @ 2400 RPM.
Camshaft: Solid valve lifters.
Camshaft Duration: Intake: 240°, Exhaust: 236°, Overlap: 16°. Valve Lift: Intake 0.394″, Exhaust 0.390″.
Carburetor: (manual transmission) Holley R-3919 A; (automatic transmission) Holley R-3920 A.

318 CID 2-Barrel V-8. Overhead valves. Cast iron block. Five main bearings.
Displacement: 318 cubic inches.
Bore and stroke: 3.91 x 3.31 inches.
Compression ratio: 9.2:1.
Horsepower: 230 @ 4400 RPM.
Torque: 340 @ 2400 RPM.
Camshaft: Hydraulic valve lifters.
Camshaft Duration: Intake 240°, Exhaust 248°, Overlap: 20°. Lift: (Intake) 0.372″, (Exhaust) 0.400″.
Carburetor: Two barrel: (manual transmission) Ball & Ball BBD-4420S; (automatic transmission) Ball & ball BBD-4421S.

340 CID 4-Barrel V-8 – Manual Transmission Only. Overhead valves. Cast iron block. Five main bearings.
Displacement: 340 cubic inches.
Bore and stroke: 4.04 x 3.31 inches.
Compression ratio: 10.5:1.
Horsepower: 275 @ 5000 RPM.
Torque: 340 @ 3200 RPM.
Valve lifters: Hydraulic.
Camshaft timing: Intake 276°, Exhaust 284°, Overlap: 52°. Lift: (Intake) 0.445″, (Exhaust) 0.455″.
Carburetor: Carter four barrel: (manual transmission) AVS 4424S.

340 CID 4-Barrel V-8 – Automatic transmission Only. Overhead valves. Cast iron block. Five main bearings.
Displacement: 340 cubic inches.
Bore and stroke: 4.04 x 3.31 inches.
Compression ratio: 10.5:1.
Horsepower: 275 @ 5000 RPM.
Torque: 340 @ 3200 RPM.
Valve lifters: Hydraulic.
Camshaft timing: Intake 268°, Exhaust 276°, Overlap: 44°. Lift: (Intake) 0.430″, (Exhaust) 0.445″.
Carburetor: Carter four barrel: (automatic transmission) AVS 4425S.

383 CID 4-Barrel V-8 – All Transmissions. Overhead valves. Cast iron block. Five main bearings.
Displacement: 383 cubic inches.
Bore and stroke: 4.250 x 3.375 inches.
Compression ratio: 10.0:1.
Horsepower: 300 @ 4400 RPM.
Torque: 400 @ 2400 RPM.
Valve Lifters: Hydraulic.
Camshaft Timing: Intake 256°, Exhaust 260°, Overlap: 32°; Lift: (intake) 0.425, (exhaust) 0.437″.
Carburetor: Carter Four-barrel Model (manual transmission) AVS 4426S; (automatic transmission) AVS-4401S.

1968 Plymouth Barracuda Facts – Chassis Features

- Wheelbase: All: 108.0 inches.
- Overall length: All: 192.8 inches.
- Overall width: All: 71.6 inches.
- Overall height: Hardtop: I-6: 52.6 inches, V-8 52.7 inches, Convertible – 53.2 inches, Fastback All: 52.8 inches.
- Front tread: 57.4 inches.
- Rear tread: 55.6 inches.
- Tires: I-6 & 318 V-8: 6.95 x 14; 340 & 383 CID V-8: E-70 x 14.
- Optional tires: I-6 & 318 V-8: D 70 x14 & E-70 x 14; 340 & 383 CID V-8: None.

1968 Plymouth Barracuda Facts – Powertrains

Three Speed Automatic Transmission Ratios
- All: 1st – 2.45:1, 2nd – 1.45:1, 3rd – 1:1, Reverse – 2.20:1.
Three Speed Manual Transmission Ratios
- I-6: 1st – 2.95:1, 2nd – 1.83:1, 3rd – 1:1, Reverse – 3.80:1 on column, floor or console.
- 318 CID V-8: 1st – 3.02:1, 2nd – 1.76:1, 3rd – 1:1, Reverse – 3.95:1 on column, floor or console.
Four Speed Manual Transmission Ratios
- 340 and 383 CID V-8s: 1st – 2.66:1, 2nd – 1.91:1, 3rd – 1:39, 4th – 1.0:1, Reverse – 2.58:1. Floor shift only.
Rear Gear Standard Ratios
- I-6: 3-Speed SMT – 3.23:1, Optional 3.55:1.
- I-6: 3-Speed AMT – 2.76:1, Optional 3.23:1, 3.55:1, 2.91:3.
- V-8 318 CID: CID V-8: 3-Speed SMT – 3.23:1, Optional 2.93:1, 3.55:1.
- V-8: 318 CID: 3-Speed AMT – 2.76:1, Optional 3.23:1.
- V-8: 318 CID: 4-Speed SMT – 3.23:1, Optional 3.55:1, 3.91:1.
- V-8: 340 CID Formula S 4-Speed SMT – 3.23:1, Optional 3.55:1, 3.91:1.
- V-8: 340 CID Formula S 3-Speed AMT – 3.23:1, Optional 3.55:1.
- V-8 383 CID 4-bbl – 3-Speed AMT – 3.23:1, Optional 3.55:1.
- V-8 383 CID 4-bbl – 4-Speed SMT – 3.23:1, Optional 3.55:1, 3.91:1.

NOTE: Optional – dealer installed gear ratios ranged from 2.73:1 to 5.10:1. Sure Grip available in most ratios when dealer installed,

1968 Plymouth Barracuda Facts – Powertrain Options

- 3-speed manual transmission was standard.
- 4-speed manual floor shift transmission, with V-8s only ($188). Note: Four-speed manual gearbox not available with I-6.
- Automatic transmission, with Six ($199); with 318 CID V-8 ($212); with340-383 CID V-8s ($227).
- 318 CID V-8 is part of V-8 pricing. Other V-8s available only with Formulas S packages – see prices below.
- Formula S Package with 340 CID 275 HP V-8 ($212 added to body style plus any other options selected).
- Formula S Package with 383 CID 300 HP V-8 ($251 added to body style plus any other options selected).
- Heavy-duty alternator ($15).
- Sure Grip positive traction rear axle ($45).

NOTE: Available rear axle gear ratios: 2.93:1, 3.23:1, 3.55:1 and 3.91:1.

1968 Plymouth Barracuda Facts – Significant Options

- Air conditioning ($335).
- Basic Group: includes AM radio; power steering; remote control outside rear view mirror; variable speed wipers and electric washers, with ‘383’ V-8 ($80); without ‘383’ V-8 ($164).
- Bumper guards ($23).
- Console, with bucket seats, except with three-speed ($51).
- Custom sill moldings ($21).
- Deluxe wiper and washer package ($10).
- Fast ratio manual steering ($14).
- Formula S package: as described in “Models Offered”- with ‘340’ engine ($212); with ‘383 engine ($251).
- Front disc brakes ($73).
- Heavy-Duty suspension package ($14).
- Paint accent stripes ($15).
- Performance gauge cluster, without clock or tachometer ($16).
- Power brakes ($44).
- Power steering ($84).
- Radio, AM ($60).
- Radio, AM with stereo tape ($195).
- Rallye Cluster: includes trip odometer; 150 miles per hour speedometer and wood grained dash trim ($6).
- Remote control outside rear view mirror ($7).
- Special buffed paint ($18).
- Sport paint stripes ($20).
- Steering wheel with full horn ring ($9).
- Steering wheel, wood-grained sport type ($27).
- Tachometer, V-8 only ($51).
- Tinted glass, all windows ($28), windshield only ($14).
- Undercoating with hood pad ($16).
- Vinyl roof, hardtop only ($79).
- Wheel covers, bolt-on design ($45).
- Wheel covers, Deluxe ($22).
- Wheel covers, wire ($67).
- Wheelhouse liners, except convertible ($47).