Early Hemi engine specifications

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by: Cobalt327, Crosley, Jon
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Contents

[edit] Early Hemi identification

[edit] Automobile

Eng#                  Year              Name/Make               CI            Comp            HP
CE55-1001             1955               Imperial               331           8.5:1           250 
CE56-1001             1956               Imperial               354           9:1             280 
CE57                  1957               Imperial               392           9.25:1          325 
58C-1001              1958               Imperial               392           10:1            345 
C51-8-1001            1951               Chrysler               331           7.5:1           180 
C52-8-1001            1952               Chrysler               331           7.5:1           180 
C53-8-1001            1953               Chrysler               331           7.5:1           180 
C541-8-1001           1954               Chrysler               331           7.5:1           195 
C542-8-1001           1954               Chrysler               331           7.5:1           235 
NE55-1001             1955               Chrysler               331           8.5:1           250 
3NE55-1001            1955               Chrysler 300           331           8.5:1           300 
NE56-1001             1956               Chrysler               354           9:1             280 
3NE56-1001            1956               Chrysler 300           354           9:1/10:1      340/355 
NE57-1001             1957               Chrysler               392           9.25:1        325/375 
3NE57                 1957               Chrysler 300           392           9.25:1          375 
58N-1001              1958               Chrysler               392           10:1            345 
58N3-1001             1958               Chrysler 300           392           10:1          380/390 
D44-1001              1953               Dodge                  241           7:1             140 
D50-1,2,3             1954               Dodge                  241           7.1:1/7.5:1   140/150 
D50A-1001             1954               Dodge                  241           7.1:1           140 
D553-1001             1955               Dodge                  270           7.6:1         183/193 
D500-1001             1956               Dodge                  315           9.25:1        260/295 
KD500-1001            1957               Dodge                  325           9.25:1        285/315  
S17-1001              1952               DeSoto                 276           7.1:1           160 
S16-1001              1953               DeSoto                 276           7.1:1           160 
S19-1001              1954               DeSoto                 276           7.5:1           170 
S21-1001              1955               DeSoto                 291           7.5:1           200 
S22-1001              1955               DeSoto                 291           7.5:1           185 
S23-1001              1956               DeSoto                 330           8.5:1           230 
S24-1001              1956               DeSoto                 330           8.5:1           255 
S24A-1001             1956               DeSoto                 341           9.5:1           320 
S25-1001              1957               DeSoto                 341           9.25:1          270 
S26-1001              1957               DeSoto                 341           9.25:1          295 
S26A-1001             1957               DeSoto                 345           9.5:1           345 

[edit] Truck

Eng#                          Year          Name/Make            CI             Comp           HP 
VT-334,VT-344,VT-336,VT-346   1954          Dodge Truck          241            N/A           N/A 
B8,C8,D8,F8,G8,VT-344,VT-342  1955/1956     Dodge Truck          259            7.9:1         145 
J8,JS8,KA8,KS8,VT-344,VT-346  1955/1956     Dodge Truck          270            N/A           150
FS8,GH8,HS8                   1955/1956     Dodge Truck          259            N/A           N/A 
RS,RS8,T8,V8                  1955/1956     Dodge Truck          331            N/A           N/A 
VT-448                        1956          Dodge Truck          331            N/A           N/A 
D8-D4,K8-D5,D8-D6             1957          Dodge Truck          315            N/A           N/A 
S4,S5,S6                      1957          Dodge Truck          315            N/A           N/A 
K8-D7,D8-D8,C5,D6,C7          1957          Dodge Truck          331            N/A           N/A 
P3,P4,S7,W5,T7,T8             1957          Dodge Truck          331            N/A           N/A 
D8-D9,T9                      1957          Dodge Truck          354            N/A           N/A 
K8-D7,K8-D8,C7,T7,T8          1957          Dodge Truck          354            N/A           N/A 
C5,C6,P3,P4,S4,S5,S6          1958          Dodge Truck          315            N/A           N/A 
L8-D4,L8-D5,D8-D6,WS          1958          Dodge Truck          315            N/A           N/A 
L8-D7,L8-D8,L8-D9,C7          1958          Dodge Truck          354            N/A           N/A 
T7,T8,T9                      1958          Dodge Truck          354            N/A           N/A 
M8-D6,C6,S6                   1959          Dodge Truck          315            N/A           N/A 
C7,S7,T7,T8,T9                1959          Dodge Truck          354            N/A           200 
M8-D7,M8-D8,M8-D9             1959          Dodge Truck          354            N/A           N/A

[edit] Industrial

Eng#                          Year           Name/Make           CI             Comp           HP 
I/IND 20,20a,24,24a           1956     Chrysler Industrial       331            N/A           N/A 
I/IND 56a                     N/A      Chrysler Industrial       354            N/A           N/A 
I/IND 18,18a                  N/A      Dodge Industrial          241            N/A           N/A 
I/IND 52                      N/A      Dodge Industrial          259            N/A           N/A 
I/IND 53,54                   N/A      Dodge Industrial          315            N/A           N/A 
I/IND 56A1                    N/A      Dodge Industrial          325            N/A           N/A 

[edit] Marine

Eng#                          Year          Name/Make            CI             Comp           HP 
M44S-3                        N/A            MARINE              270            7.6:1         155@3800rpm  
M45S-3                        N/A            MARINE              354            8.2:1         225@3800rpm
M45SP                         N/A            MARINE              331            8.2:1         250@4400rpm
M45SP-3                       N/A            MARINE              354            8.2:1         275@4400rpm

[edit] Casting numbers

[edit] Heads

Head Casting Number    Year Manufactured    Division/Make    Cubic Inch 
1323 333                  1951-1953           Chrysler          331 
1486 833                  1953-1954           Chrysler          331 
1556 157                  1955                Chrysler          331 
1619 823                  1956                Chrysler          354 
1735 282                  1957-1958           Chrysler          392 
1731 528                  1958                Chrysler          392 
              
1328 362                  1953-1954            Dodge            241 
1554 132                  1955                 Dodge            270 
1734 049                  1956                 Dodge            315 
1828 129                  1957                 Dodge            325 
              
1364 864                  1954-1956         Truck/Industrial    331 
1554 132                  1955              Truck/Industrial    241 
1554 132                  1955-1956         Truck/Industrial    260 
1554 132                  1955-1956         Truck/Industrial    270 
1733 463                  1957-1958         Truck/Industrial    354 
1730 438                  1957-1959         Truck/Industrial    354 
1828 129                  1958              Truck/Industrial    315 

[edit] Connecting rods

[edit] Chrysler

Engine CID    Casting Numbers    Pin Diameter    Center to Center Length    Big End Diameter 
 331             1324222            0.984                 6.625                  2.3755 
 354           1324222/1821345      0.984                 6.625                  2.3755 
 392             1673758            0.984                 6.956                  2.505 

[edit] Dodge

 
 241             1328783            0.859                 5.938                  2.063 
 270             1328783            0.859                 5.938                  2.063 
 315             1630398            0.901                 6.618                  2.3755 
 325             1630398            0.901                 6.618                  2.3755 

[edit] DeSoto

 276             1327417            0.921                 6.067                  2.188 
 291             1327417            0.921                 6.067                  2.188 
 330             1636609            0.921                 6.625                  2.3755 
 341             1636609            0.921                 6.625                  2.3755 
 345             1636609            0.921                 6.625                  2.3755

[edit] Crankshaft

[edit] Chrysler

Engine CID    Casting Numbers                             Stroke    Main Diameter    Rod Diameter 
 331    1323335/1335001/1409421/1419421                    3.625         2.5             2.250 
 354    1409421/1419421/1523335/1619647/1617184/1635690    3.625         2.5             2.250 
 392    1673755                                            3.910         2.6875          2.375 

[edit] Dodge

 241    1402625/1483338                                    3.250         2.375           1.937 
 270    1483338/1671108/1402538/1402625                    3.250         2.375           1.937 
 270    1671108/1731658/193261                             3.250         2.375           1.937 
 315    1630432/1739538                                    3.8           2.5             2.250 
 325    1739538                                            3.8           2.5             2.250 

[edit] DeSoto

 276    1327417/1402034                                     3.340         2.375           2.062 
 291    1402034/1402624/141962                              3.340         2.375           2.062 
 330    1635785                                             3.8           2.5             2.250 
 341    1735785                                             3.8           2.5             2.250 
 345    1736044                                             3.8           2.5             2.250 

[edit] Crankshaft and rod specifications

[edit] Chrysler

 Engine CID    Crank Main Journal    Crankshaft Bore    Rod Journal         Rod Big End 
 331           2.4995 to 2.5005      2.6565 to 2.657    2.2490 to 2.25     2.3750 to 2.3755 
 354           2.4995 to 2.5005      2.6565 to 2.657    2.2490 to 2.25     2.3750 to 2.3755 
 392           2.6870 to 2.688       2.8800 to 2.8805   2.3740 to 2.375    2.5000 to 2.5005 

[edit] Dodge

 Engine CID    Crank Main Journal    Crankshaft Bore      Rod Journal         Rod Big End 
 241           2.3745 to 2.3755      2.5675 to 2.568    1.9365 to 1.9375    2.0625 to 2.063 
 270           2.3745 to 2.3755      2.5675 to 2.568    1.9365 to 1.9375    2.0625 to 2.063 
 315           2.4995 to 2.5005      2.6925 to 2.693    2.2490 to 2.25      2.3750 to 2.3755 
 325           2.4995 to 2.5005      2.6925 to 2.693    2.2490 to 2.25      2.3750 to 2.3755 

[edit] DeSoto

 Engine CID    Crank Main Journal    Crankshaft Bore      Rod Journal         Rod Big End 
 276           2.3745 to 2.3755      2.5675 to 2.568    2.0615 to 2.0625    2.1875 to 2.188 
 291           2.3745 to 2.3755      2.5675 to 2.568    2.0615 to 2.0625    2.1875 to 2.188 
 330           2.4995 to 2.5005      2.6925 to 2.693    2.2490 to 2.25      2.3750 to 2.3755 
 341           2.4995 to 2.5005      2.6925 to 2.693    2.2490 to 2.25      2.3750 to 2.3755 
 345           2.4995 to 2.5005      2.6925 to 2.693    2.2490 to 2.25      2.3750 to 2.3755 

[edit] Generic early Hemi torque specifications

(in foot-pounds)

Camshaft Thrust Plate           15
Timing Cover                    15 
Connecting Rods                 45 
Cylinder Head                   85 
Distributor Clamp               15 
Exhaust Manifold Stud / Nut     25 
Intake Manifold                 30 
Main Bearing Cap Bolt           85 
Oil Filter Bolt                 25 
Oil Pan Bolt                    15 
Spark Plugs                     30 
Vibration Damper Bolt           135 

[edit] Weight comparison

 Make            Size               Weight 
 Chrysler       331-354              720 
 Chrysler        392                 740 
 DeSoto         276-291              630 
 DeSoto         330-345              670 
 Dodge          241-270              580 
 Dodge          315-325              610

[edit] Resources

[edit] Related Crankshaft Coalition Wiki articles

[edit] Websites with Hemi engine specifications

[edit] Books

A very good, comprehensive data booklet is the Hemi Engine Data for 1950's Chrysler, Imperial, Desoto, Dodge cars & Dodge Trucks by Leo Lindquist. This booklet covers much more than just engine parts.

Contact info

Leo R. Lindquist
1851 US HWY 14
Balaton, MN 56115
Phone/Fax - (507) 734-2051 (Central Time Zone). No calls on Sunday please.
Email: leorob51@frontiernet.net

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