Poly Engine Numbers, Colors, Photos

I have complied the following date codes,casting numbers, and color details from factory manuals, brochures, personal observations digging through my parts and sticking my head into engine compartments at cruise nights, museum collections, and getting input from other A-block owners. If you have additional numbers, particularly those of you with export engines typically from Canada and British Columbia, feel free to contact me using the tab at the bottom of the page.

Mopar A-block poly engine ID location
Poly Engine ID Location per the Manual

Mopar A-block poly engine ID location
Poly 318 Engine ID (1958 code, photo J. Lotspeich)

Mopar A-block poly engine ID location
Poly 318 Engine ID (1966 code, photo J. Lotspeich)

Poly Engine ID Numbers

ENGINE          CID     YEAR

P29               277      1956 (number also used on 1956 Plymouth hemi-block Dodge 270)

FP29             303      1956

P31-1            277      1957

P31-2            301      1957

LP31/FLP31   318     1957

LP8                318      1958

LD2/L325      326      1959 Dodge

DMP8            318      late 1959 Dodge

MP8               318      1959

P318              318      1960

PV3                313      1960 Export

R318              318      1961

RV3                313     1961 Export

S318               318      1962

SV3                 313      1962 Export

T318               318      1963

TV3                 313      1963 Export

V318               318      1964

VV3                 313      1964 Export

A318               318      1965

AV3                 318      1965 Export

B318               318      1966

CV3                 318      1967 Export

  • Note: 318-2 and 318-3 often designates an industrial/heavy truck/RV/marine engine.

Poly Engine Casting Numbers

Note: This is not a complete list but what I have. The years listed are those I have confirmed had these casting numbers via parts manuals and other enthusiasts, but they do not mean that those are the only years that used the numbers since Mopar used whatever parts were available. Earlier casting numbers, taking into account the 1962 design change, have been confirmed on later model vehicles (e.g. a 1963 casting in a 1965 vehicle). For engine block identification, refer to the stamped ID above in conjunction with the block casting number.

Blocks

1618729   1956 – 1957 (277 and 303)

1639609   1956 – 1957 (277 and 303)

1736118 – 1957 – 1958 (301, 313, 318)

1737929 – 1957 – 1959 (301, 313, 318)

1851249 – 1956 – 1957 (277 and 303)

1855207 – 1958 (313 and 318)

1859497 – 1960 – 1961 (313 and 318)

1859616 – 1959 (313, 318, 326)

1945078 – 1960 (313, 318)

1945079 – 1959 – 1960 (313, 318)

1945373 – 1961 (313, 318)

2737929 – 1960 – 1961 (313 and 318)

2264230 – 1960 -1961 (313 and 318)

2264370 – 1963 (313 and 318)

2268306 – 1962 (313 and 318)

2268509 – 1962 – 1966 (313 and 318)

2532630 – 1962 – 1966 (313 and 318)

2402971 – 1963 – 1966 (313 and 318)

2468230 – 1963 – 1966 (313 and 318)

2532674 – 1963 – 1966 (313 and 318)

Crankshafts

1630937 – 1955 – 1957 (3.13″ stroke)

1732557 – 1955 – 1957 (3.13″ stroke)

1732610 – 1957 – 1960 (3.31″ stroke)

1826123 – 1957 – 1961 (3.31″ stroke)

1859752 – 1957 – 1961 (3.31″ stroke)

2268119 – 1962 – 1966 (3.31″ stroke)

Cylinder Heads

1618721 – 1956 – 1961 

2268341 – 1962 – 1966

Intake Manifolds

1822004 – 1957 – 1958 “Dual Fury V-800” 2 x 4 barrel

1619826 – 1957 – 1962 “Fury V-800 Super-Pak” 4 barrel (4-barrel production stopped in 1963)

1859228 – 1956 – 1966 “Fury V-800” 2 barrel

E5793M – “Chrysler Sea V” marine dual carburetor intake

Exhaust Manifolds

1945095 – Left and right center dump w/out generator bracket (1956 – 1961 or so)

1945094 – Right center dump w/generator bracket (1956 – 1961 or so)

2129197 – Right and left center dump w/out generator bracket (about 1962 – 1966)

2268189 – Left “log” rear dump with narrower flat front (earlier version but need dates)

2532415 – Left “log” rear dump with wider flat front (need start date – 1966)

2858331 – Left “log” rear dump with carburetor choke hot-air port (1962+ Canadian, photo/info courtesy Brian Woodard)

Rocker Arms

2208172 – Intake Adjustable (originally on solid cams but interchangeable on all)

2208173 – Exhaust Adjustable (originally on solid cams but interchangeable on all)

  • I need part numbers for 1959 – 1966 nonajustable rocker arms that came on hydraulic cam engines.

Poly Engine Colors (reference photos below)

Notes:

  • No factory A-block was painted black or orange. Some people mistake faded red for orange.
  • No factory car or truck A-block was painted Chrysler Corporation blue P4349217. Some marine engines may have been painted blue by the boat builder. Some people mistake faded Mopar turquoise for blue.

Modern Color Equivalents:
  • Silver: Dupli-Color “Cast Coat Aluminum” DE1650 is extremely close if not exact. Hirsch “aluminum” is extremely close/exact. Mopar P4529148 is close but not exact.
  • Gold: Bill Hirsch “Oldsmobile Gold Early” is exact. Dupli-Color DE1604 is very close. Mopar P4529149 is not exact.
  • Red: Dupli-Color DE1632 is exact. Mopar P4349218 can be off.
  • Turquoise: Bill Hirsch “Chrysler Turquoise” is exact. Dupli-Color DE1618 is very close. Mopar P4120752 is often too blue.

Engine Color Descriptions

Cars

1956 – 1960 2-barrel and Single 4-barrel:

  • All silver engine
  • Either red or black air cleaner (see photos)

1957 – 1958 Fury “Dual Fury V-800” Dual-quad:

  • Silver block, heads, intake with gold valve covers and air cleaners

1961 – 1966 2- and 4-barrel:

  • All red engine
  • Black air cleaner

Trucks

1959 – around late 1960:

  • All silver engine
  • Black air cleaner

Late 1960 – 1966:

  • All red engine
  • Black air cleaner

Some 1962 – 1964 including 200 HP and 202 HP package:

  • All turquoise engine
  • Black air cleaner

Industrial

  • Most were all red engine
  • Some all turquoise engine

Marine

  • Fury 210: All Turquoise
  • Fury 235: All turquoise
  • Chrysler Sea V: Usually all turquoise with some examples of all red
  • Chrysler M318A: All turquoise

Poly Engine Photos for Color Reference

1956 Plymouth Hy-Fire
1956 277 Hy-Fire, the Grandfather of A Blocks

1957 Plymouth
1957 2-barrel “Fury V-800” and 4-barrel “Fury V-800 Super-Pak”

1957 Plymouth Fury V800
1957 Dual-quad “Dual Fury V-800” (photo FuryWorld)

1958 Plymouth
1958 2-barrel “Fury V-800” and 4-barrel “Fury V-800 Super-Pak”

1958 Plymouth Fury V800
1958 Dual-quad “Dual Fury V-800”

1959 Plymouth Chrysler
1959 2-barrel “Fury V-800,” 4-barrel “Fury V-800 Super-Pak,” and Dodge 326 Packages

1960 Chrysler, Dodge, Plymouth Car
1960 Car 2- and 4-barrel

1960 Dodge truck
1960 Truck

1961 - 1966 Chrysler, Dodge, Plymouth Car Truck
1961 – 1966 car/truck typical, 2- and 4-barrel (photo 1962)

1961 - 1966 Chrysler, Dodge, Plymouth Car Truck
1961 – 1966 car/truck typical 2- and 4-barrel (photo 1964)

1962 - 1966 Dodge truck 200 HP turquoise
1962 – 1966 Truck 200 HP 2-barrel (Turquoise)

Mopar Poly 318 Marine Exhaust Manifold
Marine “Fury 210” Exhaust Manifold Off Unrestored Engine (Turquoise)

Mopar Poly 318 Fury 210 Marine Engine
Marine 1966 “Fury 210” Bellhousing (Turquoise)

Mopar Poly 318 Fury 235 Timing Cover
Marine “Fury 235” Timing Cover Off Unrestored Engine (Turquoise)

Mopar Poly 318 Marine M318A Engine
Marine 1962 Chrysler M318A (Turquoise)

Chrysler Sea V
Marine Chrysler Sea V (Turquoise)

Chrysler Sea V
Marine Chrysler Sea V (Red)

A-block poly industrial
Industrial with Tall Timing Cover and Front Mount
(not all industrials had tag riveted to the head)