Engine profile

Chrysler 383 four-barrel B-series V8

B-series big-block · 383 cubic inches · Chrysler

383 Four-Barrel reference for the 1968 Plymouth Barracuda Formula S 383 1968 Plymouth Barracuda Formula S 383

Engine Summary

Manufacturer: Chrysler
Family: B-series big-block
Displacement: 383 cubic inches

Also Known As

383 4-BBL. V8383 cu in four-barrel V8383 cubic-inch four-barrel V8383 Road RunnerRoad Runner 383383 CID 4-Barrel V-8383 four-barrel383/335 HP383 CID V-8383-cu.in. B-series big-block383 CID 4-bblFormula S 383

Identification reference

Engine Details

Source-backed component numbers, codes, stampings, and application notes.

Camshaft lift

Value: 0.450 inch intake, 0.465 inch exhaust
Application: 1968 Road Runner 383 CID High Performance 4-barrel V-8
Type: camshaft / specification
Car pages: 1968 Plymouth Road Runner 383

Sources: 1966-1970 Chrysler Corporation B and RB V-8s

Camshaft timing

Value: Intake 268 degrees, exhaust 284 degrees, overlap 46 degrees
Application: 1968 Road Runner 383 CID High Performance 4-barrel V-8
Type: camshaft / specification
Car pages: 1968 Plymouth Road Runner 383

Sources: 1966-1970 Chrysler Corporation B and RB V-8s

Carter AVS 4401 S

Value: AVS-4401 S
Application: 1968 Plymouth Barracuda 383 CID V-8 with automatic transmission
Type: carburetor / carburetor list
Car pages: 1968 Plymouth Barracuda Formula S 383

AMA fuel-system table lists Carter AVS carburetor applications by engine and transmission.

Sources: 1968 Plymouth Barracuda AMA Specifications

Carter AVS 4426 S

Value: AVS-4426 S
Application: 1968 Plymouth Barracuda 383 CID V-8 with manual transmission
Type: carburetor / carburetor list
Car pages: 1968 Plymouth Barracuda Formula S 383

AMA fuel-system table lists Carter AVS carburetor applications by engine and transmission.

Sources: 1968 Plymouth Barracuda AMA Specifications

Carter AVS carburetor, automatic transmission

Value: AVS-4429S
Application: 1968 Road Runner 383 CID High Performance 4-barrel V-8 with automatic transmission
Type: carburetor / carburetor list
Car pages: 1968 Plymouth Road Runner 383

Sources: 1966-1970 Chrysler Corporation B and RB V-8s

Carter AVS carburetor, manual transmission

Value: AVS-4428S
Application: 1968 Road Runner 383 CID High Performance 4-barrel V-8 with manual transmission
Type: carburetor / carburetor list
Car pages: 1968 Plymouth Road Runner 383

Sources: 1966-1970 Chrysler Corporation B and RB V-8s

Bore and stroke

Value: 4.25 x 3.38 inches
Application: 1968 Plymouth Barracuda 383 CID V-8
Type: engine assembly / specification
Car pages: 1968 Plymouth Barracuda Formula S 383

Sources: 1968 Plymouth Barracuda AMA Specifications

Bore and stroke

Value: 4.250 x 3.375 inches
Application: 1968 Road Runner 383 CID High Performance 4-barrel V-8
Type: engine assembly / specification
Car pages: 1968 Plymouth Road Runner 383

Sources: 1966-1970 Chrysler Corporation B and RB V-8s

Compression ratio

Value: 10.0:1 nominal
Application: 1968 Plymouth Barracuda 383 CID V-8
Type: engine assembly / specification
Car pages: 1968 Plymouth Barracuda Formula S 383

Sources: 1968 Plymouth Barracuda AMA Specifications

Compression ratio

Value: 10.0:1
Application: 1968 Road Runner 383 CID High Performance 4-barrel V-8
Type: engine assembly / specification
Car pages: 1968 Plymouth Road Runner 383

Sources: 1966-1970 Chrysler Corporation B and RB V-8s

Engine construction

Value: Overhead-valve cast-iron block V8 with five main bearings
Application: 1968 Road Runner 383 CID High Performance 4-barrel V-8
Type: engine assembly / specification
Car pages: 1968 Plymouth Road Runner 383

Sources: 1966-1970 Chrysler Corporation B and RB V-8s

Horsepower rating

Value: 335 @ 5200 RPM
Application: 1968 Road Runner 383 CID High Performance 4-barrel V-8
Type: engine assembly / specification
Car pages: 1968 Plymouth Road Runner 383

Sources: 1966-1970 Chrysler Corporation B and RB V-8s

Torque rating

Value: 425 @ 3400 RPM
Application: 1968 Road Runner 383 CID High Performance 4-barrel V-8
Type: engine assembly / specification
Car pages: 1968 Plymouth Road Runner 383

Sources: 1966-1970 Chrysler Corporation B and RB V-8s

Firing order

Value: 1-8-4-3-6-5-7-2
Application: 1968 Plymouth Barracuda V-8 engines including 383 CID
Type: ignition / specification
Car pages: 1968 Plymouth Barracuda Formula S 383

Sources: 1968 Plymouth Barracuda AMA Specifications

Model availability

Value: Only available in Road Runner and Super Bee
Application: 1968 383 CID High Performance 4-barrel V-8
Type: other / specification
Car pages: 1968 Plymouth Road Runner 383

Sources: 1966-1970 Chrysler Corporation B and RB V-8s

Valve lifters

Value: Hydraulic
Application: 1968 Road Runner 383 CID High Performance 4-barrel V-8
Type: valve train / specification
Car pages: 1968 Plymouth Road Runner 383

Sources: 1966-1970 Chrysler Corporation B and RB V-8s

Cars Using This Engine

2 linked car pages.

hardtop, sports hardtop fastback, or convertible

1968 Plymouth Barracuda Formula S 383

383 four-barrel B-series V8

2-door coupe

1968 Plymouth Road Runner 383

383 four-barrel B-series V8

Source Trail

Over-Drive Magazine 1968 Plymouth Barracuda Fact Sheet

Plymouth Division, Chrysler Corporation (hosted by Over-Drive Magazine) 1968 Plymouth Barracuda Brochure

Hemmings 1968 Plymouth Barracuda Formula S 340 and 383 Buyer’s Guide

For A Bodies Only Mopar Forum Production Figures for Plymouth Barracuda from Chrysler Historical collection

Mecum Auctions 1968 Plymouth Barracuda Formula S, Lot T136 Kissimmee 2019

Over-Drive Magazine 1968 Plymouth Barracuda Production Figures PDF

Wikimedia Commons 1968 Plymouth Barracuda Fastback (23306510322)

RK Motors / YouTube 133319 / 1968 Plymouth Barracuda Formula S