Chrysler flathead engine#Straight-6

{{Infobox automobile engine

|name = Chrysler Flathead engine

|image = 1937 Dodge Brothers coupe engine.JPG

|aka = Chrysler Sidevalve engine

|manufacturer = Chrysler Corporation

|production = 1926–1933 (four-cylinder)
1924–1964(six-cylinder)

|predecessor =

|successor = {{ubl | Chrysler Slant-6 engine|Polyspheric V8}}

|configuration = Side-valve

|fueltype = Gasoline

|block = Cast iron

|head = Cast iron

|fuelsystem = Carburetor

}}

The Chrysler flathead engine is a flathead inline automotive engine manufactured by the Chrysler Corporation from 1924 through the early 1960s. It came in four-,six-, and eight-cylinder configurations and varying displacements, with both cast iron and cast aluminum cylinder heads. It was installed in Chrysler, DeSoto, Dodge, and Plymouth branded vehicles.

Straight-4

Chrysler introduced a straight-four in 1926 when the Maxwell Motor Corporation was re-organised into the Chrysler Corporation in 1925.{{Cite book | title = Chrysler Engines, 1922-1998 | first = Willem L. | last = Weertman | publisher = SAE International | location = Warrendale, PA | isbn = 978-0-7680-1642-0 }} Initially used by Chrysler, the straight-four was fitted to Plymouth cars and Dodge light trucks beginning in 1929, lasting in production through 1933.

The original version displaced {{cvt|3044|cc|cuin|1|disp=flip}} and produced 38 hp (28 kW). This was only produced in 1926, with displacement reduced to {{cvt|2791|cc|cuin|1|disp=flip}} for 1927 and 1928. Power was initially rated the same but was upped to 45 hp (34 kW) during the 1928 model year.

After the introduction of the Plymouth brand in 1929, the base engine was subjected to a major redesign and enlarged to {{cvt|175.4|cuin|cc|1}} with the power rating remaining the same. It was also used in Dodge light trucks in 1929–1930. The engine was enlarged again to {{cvt|3213|cc|cuin|1|disp=flip}} in 1930 with 48 hp (36 kW), for 1931 with 56 hp (42 kW), and 1932 with 65 hp (48 kW) for Plymouth only; Dodge continued with the 48 hp (36 kW) from 1931 to 1933. A small-bore version was developed for export markets in 1931, with a narrower bore which brought the RAC rating down from 21 to 15.6 hp. For 1932 the bore was reduced further, bringing the tax horsepower rating to just beneath 15.5.

Chrysler did not offer a four-cylinder engine again until 1981 with the Chrysler 2.2 & 2.5 engine used in the Chrysler K platform.

class=wikitable
DisplacementYear(s)HorsepowerApplicationsBoreStroke
{{cvt|185.77|cuin|cc|0|adj=ri0}}192638Chrysler model F-58rowspan=14|{{cvt|3+5/8|in|mm|1}}{{cvt|4+1/2|in|mm|1}}
rowspan=3|{{cvt|170.29|cuin|cc|0|adj=ri0}}192738Chrysler Series 50rowspan=3|{{cvt|4+1/8|in|mm|1}}
192838-45Chrysler Series 52
192845Plymouth Model Q
rowspan=3|{{cvt|175.45|cuin|cc|0|adj=ri0}}192945Plymouth Urowspan=3|{{cvt|4+1/4|in|mm|1}}
192945Dodge 1/2 Ton
193045Dodge U1-A/B/C
rowspan=7|{{cvt|196.09|cuin|cc|0|adj=ri0}}193048Plymouth 30Urowspan=9|{{cvt|4+3/4|in|mm|1}}
193156Plymouth PA
193148Dodge UF-10, U1-B/C
193265Plymouth PB
193248Dodge E, UF-10, U1-B/C
193265Dodge DM (export model)
193348Dodge UF10, UG20/21
{{cvt|145.73|cuin|cc|0|adj=ri0}}1931n/aPlymouth PAX (export model, 89 built){{Cite book | ref = SCchr | title = Standard Catalog of Chrysler, 1924-1990 | first = John | last = Lee | publisher = Krause Publications, Inc. | location = Iola, WI | page = 367 | date = 1990 | isbn = 0-87341-142-0 }}{{cvt|3+1/8|in|mm|1}}
{{cvt|144.27|cuin|cc|0|adj=ri0}}1932n/aPlymouth PBX (export model, 58 built){{cvt|3+7/64|in|mm|1}}

{{anchor|Six|Straight-6}} Straight-6

File:1951 Plymouth 3.6-liter 'six' in a Cranbrook.jpg]]

The first straight-6 was the B-Model (seven main bearings) and introduced in 1924 with the first Chrysler Corporation production, the B70. An upscale version designated E-Model equipped the new Chrysler Imperial E80 in 1926, and a downscale one named H-Model followed in 1927 (Chrysler Series 70). After the purchase of Dodge Brothers Company in 1928, Chrysler Corporation had five straight-6s in production with the addition of the Victory and Senior Dodge Brothers engines.

So, with the introduction of the new Desoto brand in 1929, came a new and cheaper to produce six cylinder, the K-Model, with four main bearings and deep skirts. By mid-1930, it partially replaced the previous engines in varying displacements on passenger cars, in conjunction with an all-new straight-8 engine. Only the Imperial's engine remained in production for the Dodge Trucks' 2-ton Models F-40 & K-50, 3-ton models F-60 & K-70, 2 & 3-ton Special, buses from 1930 to 1934-35. To replace these two engines, a new and very large six cylinder was launched in late 1936 (331 cu. in.), which grew to 413 cu in and was las used in the C-3 Series{{what|date=February 2025}} in 1956.

In 1932, the Ford flathead V8's launch shook up the market, expanding the demand for larger engines to even entry-level brands. A new straight-6 for Plymouth (PC/PD) and Dodge (DP/DQ) came in production in 1933, known as the "23 in block", featuring a shallow skirt and a {{clarification needed span|text=head desk length of 580 mm,|reason=What is a "head desk length"; please provide an appropriate WP link, and/or a reliable citation.|date=February 2025}} followed by a larger ("25 in block" – 640 mm) variant for Desoto (S3) and Chrysler Royal (C16) in 1937, marking the K-Model end everywhere but in Canada. When Chrysler established an engine foundry in Windsor, Canada, in 1938, it was decided to only use the long block for all Canadian-built engines. These engines received a trailing "C" in their designation. Thanks to judicious bore and stroke dimensioning, the Canadian 201- and 218-cubic inch engines had nearly identical displacement to their American cousins.Lee, p. 375

Beginning in 1938, the {{cvt|201.33|cuin|cc|0|adj=ri0}} straight-six was used in Massey Harris's Model 101 tractor (later known as the 101 Super). It continued to be used by Massey until 1940, when it was supplanted by the {{cvt|217.76|cuin|cc|0|adj=ri0}}.{{cite book |last=Pripps |first=Robert N. |year=2001 |title=The big book of Massey tractors |isbn=1-55192-423-4 |publisher=Raincoast Books |location=Vancouver |oclc=46991918}} In 1940, Chrysler's {{cvt|242|cuin|cc|0}} straight six went into Massey's 201 Super, which lasted until 1942.

During World War II, the {{cvt|250.6|cuin|cc|0|adj=ri0}} flathead six was used as the basis for the Chrysler A57 multibank tank engine.{{cite book |title=Standard Catalog of U.S. Military Vehicles |last=Berndt |first=Thomas |year=1993 |publisher=Krause Publications |isbn=0-87341-223-0 |page=193 }}

The last automotive use of the Chrysler flathead straight-six was in 1968 (in the Dodge Power Wagon WM300, its last year of production, which used the 251 cu in variant Standard Catalog of American Light-Duty Trucks). It was replaced throughout Chrysler products by the much more efficient OHV Slant-6 released in 1960, which appeared in most Dodge trucks starting in 1961. The flathead remained in production until the early 1970s for industrial and agricultural use.{{Citation needed|date=March 2011}}

class=wikitable
DisplacementYearsHorsepowerApplicationsBoreStroke
{{cvt|201.45|cuin|cc|0|adj=ri0}}1924-192568Chrysler B-70 Six{{cvt|3|in|mm|1}}{{cvt|4+3/4|in|mm|1}}
rowspan=2|{{cvt|288.63|cuin|cc|0|adj=ri0}}192692Chrysler Series E-80rowspan=2|{{cvt|3+1/2|in|mm|1}}rowspan=2|{{cvt|5|in|mm|1}}
1927-192892Chrysler Series 80
rowspan=5|{{cvt|218.59|cuin|cc|0|adj=ri0}}192668Chrysler Model G-70rowspan=5|{{cvt|3+1/8|in|mm|1}}rowspan=5|{{cvt|4+3/4|in|mm|1}}
192768Chrysler Series 70
193075Chrysler Series 70 (early)
193068Chrysler Series 66 (late)
193168Chrysler Series 66
rowspan=2|{{cvt|180.25|cuin|cc|0|adj=ri0}}192754Chrysler Series 60rowspan=6 |{{cvt|3|in|mm|1}}rowspan=2 |{{cvt|4+1/4|in|mm|1}}
192854 (std.)
60 (opt.)
Chrysler Series 62
rowspan=4|{{cvt|174.95|cuin|cc|0|adj=ri0}}192955DeSoto Series Krowspan=12|{{cvt|4+1/8|in|mm|1}}
193057DeSoto Series K
1932n/aChrysler Richmond (CIX; UK only)
1933n/aChrysler Richmond (COX; UK only)
rowspan=4|{{cvt|189.83|cuin|cc|0|adj=ri0}}1930-193261Dodge Series DDrowspan=4|{{cvt|3+1/8|in|mm|1}}
193370Dodge Series DQ (CDN/export)
1930-193160DeSoto Series CK
193370 (std.)
76 (opt.)
Plymouth PC/PCXX/PD
rowspan=4|{{cvt|160.67|cuin|cc|0|adj=ri0}}1930n/aDeSoto Series CK (UK)rowspan=4|{{cvt|2+7/8|in|mm|1}}
1930n/aDodge Series DD (UK){{cite book | ref = AZ30 | title = A-Z of Cars of the 1930s | last = Sedgwick | first = Michael | last2 = Gillies | first2 = Mark | publisher = Bay View Books | date = 1989 | page = 70 | location = Bideford, Devon, UK | isbn = 1-870979-38-9 }}
1931-1932n/aDeSoto Series SAX (export, late cars sold as "Chrysler Light Six")Sedgwick, p. 69
1933n/aPlymouth PCX/PCXXPDX/Chrysler Kew/Wimbledon (export models, 651 built)Lee, p. 368
rowspan=3|{{cvt|195.58|cuin|cc|0|adj=ri0}}192965 (std.)
72 (opt.)
Chrysler Series 65rowspan=3|{{cvt|3+1/8|in|mm|1}}rowspan=3|{{cvt|4+1/4|in|mm|1}}
193062Chrysler Series 66 (until Feb. 1930, longer in UK)
1930-193162Chrysler Series CJ
rowspan=4|{{cvt|201.29|cuin|cc|0|adj=ri0}}1938n/aPlymouth P5/P6 (Canada-made, late introduction)rowspan=4 |{{cvt|3+3/8|in|mm|1}}rowspan=4|{{cvt|3+3/4|in|mm|1}}
1938n/aDodge Series D9/D10 (Canada-made, late introduction)
1939n/aPlymouth P7/P8 (Canada-made)
1939n/aDodge Series D12/D13 (Canada-made)
rowspan=20|{{cvt|201.33|cuin|cc|0|adj=ri0}}193375 (std.)
81 (opt.)
Dodge Series DProwspan=20|{{cvt|3+1/8|in|mm|1}}rowspan=44 |{{cvt|4+3/8|in|mm|1}}
rowspan=2|193477Dodge Series DT (CDN/export)
77 (std.)
82 (opt.)
Plymouth PE/PF/PFXX/PG
Chrysler Wimbledon (UK)
rowspan=2|1935rowspan="2"|82Dodge Series DV/DV-6 (CDN/export)
Plymouth Model PJ
Chrysler Wimbledon (UK)
rowspan=2|1936rowspan="2"|82Dodge Series D-3/D-4 (CDN/export)
Plymouth P1/P2
Chrysler Wimbledon (UK)
rowspan="3"|193782Dodge Series D6/D7 (CDN/export)
82 (std.)
65 (Economy)
Plymouth P3/P4
Chrysler Kew/Wimbledon (UK)
70Plymouth PT50 (commercials)
rowspan="3"|193882Dodge Series D9/D10 (CDN/export)
82 (std.)
65 (Economy)
86 (opt.)
Plymouth P5/P6
Chrysler Kew/Wimbledon (UK)
70Plymouth PT57 (commercials)
rowspan="3"|193982Dodge Series D12 (export)
82 (std.)
86 (opt.)
Plymouth P7/P8
Chrysler Kew/Wimbledon (UK)
70Plymouth PT81 (commercials)
rowspan="2"|194084 (std.)
87 (opt.)
Plymouth P9/P10
79Plymouth PT105 (commercials)
rowspan="2"|194187 (std.)
92 (opt.)
Plymouth P11/P12
82Plymouth PT125 (commercials)
rowspan=24|{{cvt|170.41|cuin|cc|0|adj=ri0}}1931n/aDodge Series DH (UK)rowspan=24|{{cvt|2+7/8|in|mm|1}}
1931-1932n/aChrysler CMX (UK, from Aug. 1931)
1932-1933n/aDeSoto SCX/Chrysler Mortlake (UK)
1933n/aDeSoto SDX/Chrysler Wimbledon (UK)
1933n/aDodge Series DP Victory (UK)
1934n/aDodge Series DR Victory (UK)
1934n/aPlymouth PEX/PFX (export models, 1529 built)Lee, p. 370
Chrysler Kew/Wimbledon (UK)
1935n/aDodge Series DUX Victory (UK)
1935n/aPlymouth PJX (export models, 754 built)
Chrysler Kew (UK)
1936n/aDodge Series D2X Victory (UK)
1936n/aPlymouth P1X/P2X (export models, 661 built with P2X engine code, plus 35 Dodge D-3/D-4)
Chrysler Kew (UK)
1937n/aDesoto Series S3X (export models)
1937n/aDodge Series D5X (UK)
1937n/aPlymouth P3X/P4X (export models, 657 built with P4X engine code, plus 39 Dodge D6X)
Chrysler Kew (UK)
1938n/aDesoto Series S5X (export models)
1938n/aDodge Series D8X (export models)
1938n/aPlymouth P5X/P6X (export models, 333 built with P6X engine code)
81 Dodge D9X)
Chrysler Kew (UK)
1939n/aDesoto Series S6X (export models)
1939n/aDodge Series D11X (export model, unknown production)
1939n/aPlymouth P7/P8 (export models, 273 built plus 38 Dodge D12X and some DeSoto-badged SP7X/SP8X)
Chrysler Kew (UK)
1940n/aDodge Series D14X (export models none built)
194070Plymouth P9X/P10X (export models, one built/none built)
1941n/aDodge Series D19X (export models, unknown production)
1941n/aPlymouth P11X/P12X (export models, unknown production)
rowspan=2|{{cvt|208.0|cuin|cc|0|adj=ri0}}1927-192858Dodge Standard Six (140/141/J)
Dodge Victory Six (130/131/M)
rowspan=2 | {{cvt|3+3/8|in|mm|1}}rowspan=2 | {{cvt|3+7/8|in|mm|1}}
1929-193063Dodge Series DA
rowspan=2|{{cvt|211.54|cuin|cc|0|adj=ri0}}193168Dodge Series DHrowspan=25 | {{cvt|3+1/4|in|mm|1}}rowspan=2 | {{cvt|4+1/4|in|mm|1}}
193274Dodge Series DH
rowspan=23|{{cvt|217.76|cuin|cc|0|adj=ri0}}193178Chrysler Series CM-6rowspan=23 | {{cvt|4+3/8|in|mm|1}}
193278Chrysler Series CM-6
193275DeSoto Series SC
193279Dodge Series DL
193382DeSoto S-All
rowspan=2|193482Dodge Series DR/DRXX
87Dodge Series DR (opt.)/DS (std.)
193587Dodge Series DU
193687Dodge Series D2
193787Dodge Series D5
193887Dodge Series D8
193987Dodge Series D11/D11S
194087Dodge Series D14/D17
Dodge Series D15 (US-made for export)
194191Dodge Series D19
Dodge Series D20 (US-made for export)
194295Plymouth S-All
194295Dodge Series D23 (US-made for export)
1946-194995Plymouth S-All
194997Plymouth S-All
195097Plymouth S-All
195197Plymouth S-All
195297Plymouth S-All
1953100Plymouth S-All
1954100Plymouth S-All (Early)
rowspan=12|{{cvt|218.06|cuin|cc|0|adj=ri0}}1939n/aDodge D11 (Canada-made)rowspan=12 |{{cvt|3+3/8|in|mm|1}}rowspan=12|{{cvt|4+1/16|in|mm|1}}
194084.25Dodge Series D14/D15 (Canada-made)
1940n/aPlymouth P9/P10 (Canada-made)
194188Dodge Series D20/D21 (Canada-made)
194188Plymouth P11/P12 (Canada-made)
194288Dodge Series D23 (Canada-made)
194288Plymouth P14 (Canada-made)
1946-early 194995Plymouth P15S & P15C (Canada-made)
Dodge D25S & D25S (Canada-made)
194997Plymouth P17 & P18
(Canada-made)
Dodge D31 & D32 (Canada-made)
195097Plymouth P22 & P23
(Canada-made)
Dodge D35 & D36 (Canada-made)
1951-195297Plymouth P22 & P23
(Canada-made)
Dodge D39 & D40 (Canada-made)
195397Plymouth P24-1, P24-2 & P24-3 (Canada-made)
Dodge D49-1 & D49-2 (Canada-made)
rowspan=4|{{cvt|223.99|cuin|cc|0|adj=ri0}}1927-192860Dodge Senior Six (Series 2249)rowspan=4 | {{cvt|3+1/4|in|mm|1}}rowspan=4 | {{cvt|4+1/2|in|mm|1}}
192868Dodge Senior Six (Series 2251/2252)
193282Chrysler Series CI
Chrysler Kingston (UK)
193383 (std.)
89 (opt.)
Chrysler Series CO
Chrysler Kingston (UK)
rowspan=14|{{cvt|228.13|cuin|cc|0|adj=ri0}}193793DeSoto Series S-3
Chrysler Richmond (UK; 1937–1938)
rowspan=14 | {{cvt|3+3/8|in|mm|1}}rowspan=14 | {{cvt|4+1/4|in|mm|1}}
193793 (std.)
100 (opt.)
Chrysler Series C-16
1938rowspan=2|93 (std.)
100 (opt.)
DeSoto Series S-5
1939DeSoto Series S-6
1940100 (std.)
105 (opt.)
DeSoto Series S-7
DeSoto Series S-7S (Canada-made)
1941100
105
110
DeSoto Series S-8 DeLuxe
DeSoto Series S-8 Custom
DeSoto Series S-8 (optional)
1942105Dodge D22C (Canada-made)
1946-Early 1949105Dodge D24 (Canada-made)
1949105Dodge D30 Custom (Canada-made)
1950105Dodge D34 Custom (Canada-made)
1951-1952105Dodge D42 Coronet (Canada-made)
1953115

101 (bhp)
Dodge D43-1, D43-2 & D43-3 (Canada-made w/ Hy-Drive)
Dodge D43 (Australia-built)
1954115Plymouth P25-1, P25-2 & P25-3 (Canada-made)
Dodge D49-1 & D49-2 (Canada made)
1955115Plymouth P26-1, P26-2 & P26-3 (Canada-made, w/ manual transmission)
Dodge D54-1, D54-2 & D54-4 (Canada-made, w/ manual transmission)
rowspan=21|{{cvt|230.21|cuin|cc|0|adj=ri0}}1942105Dodge Series D22rowspan=21 | {{cvt|3+1/4|in|mm|1}}rowspan=21 | {{cvt|4+5/8|in|mm|1}}
1946-1949102Dodge S-All
1949103Dodge S-All
1950103Dodge S-All
1951103Dodge S-All
1952103Dodge S-All
1953103Dodge S-D-46, D-47
1954110Plymouth S-All (from February 26{{Cite book | contribution = The Postwar Plymouths Changing Personalities From Staid to Flashy | title = Standard Catalog of Chrysler, 1924-1990 | editor-first = John | editor-last = Lee | first = R. Perry | last = Zavitz | publisher = Krause Publications, Inc. | location = Iola, WI | page = 119 | date = 1990 | isbn = 0-87341-142-0 }})
1954110Dodge S-All I-6
1955117Plymouth S-All I-6
1955123Dodge S-Coronet I-6
1956125Plymouth S-all exc Fury, Belvedere cvt
1956131Plymouth O-all exc Fury, Belvedere cvt
1956131Dodge S-Coronet I-6
1957-1958115Chrysler Royal/Chrysler Plainsman AP1 (AUS-made)
1957132Plymouth S-All exc Fury, Belvedere, cvt
1957138Dodge S-Coronet I-6
1958132Plymouth S-All exc Fury, Belvedere cvt
1958138Dodge S-Coronet I-6
1959132Plymouth S-Savoy, Belvedere, Suburban exc. Custom 9P, Fury, Sport Fury
1959138Dodge S-Coronet I-6
rowspan=5|{{cvt|236.65|cuin|cc|0|adj=ri0}}1942115DeSoto Series S-10rowspan=5| {{cvt|3+7/16|in|mm|1}}rowspan=5| {{cvt|4+1/4|in|mm|1}}
1946-1949109DeSoto S-All
1949112DeSoto S-All
1950112DeSoto S-All
1951112DeSoto S-All
rowspan=15|{{cvt|241.55|cuin|cc|0|adj=ri0}}192978Dodge Series Srowspan=15 | {{cvt|3+3/8|in|mm|1}}rowspan=15 | {{cvt|4+1/2|in|mm|1}}
1929-193078Dodge Series DB
1934100DeSoto Series SE (aka Chrysler CY/Croydon, until 1936 in UK)
193493 (std.)
100 (opt.)
Chrysler Series CA/CB
rowspan=2|193593DeSoto Series SF
100DeSoto Series SG
1935100Chrysler O-C-6
193593Chrysler S-C-6
rowspan=2|193693DeSoto Airstream Series S-1
100DeSoto Airflow Series S-2
193693 (std.)
100 (opt.)
Chrysler Series C-7
193895 (std.)
102 (opt.)
Chrysler Series C-18
1939100 (std.)
107 (opt.)
Chrysler Series C-22
1940108 (std.)
112 (opt.)
Chrysler Royal/Windsor
1941108
112
115 (opt.)
Chrysler Royal
Chrysler Windsor
Chrysler Royal/Windsor
rowspan=2|{{cvt|248.87|cuin|cc|0|adj=ri0}}192875 (std.)
85 (opt.)
Chrysler Series 72rowspan=2 | {{cvt|3+1/4|in|mm|1}}rowspan=2 | {{cvt|5|in|mm|1}}
192975 (std.)
84 (opt.)
Chrysler Series 75
rowspan=13|{{cvt|250.58|cuin|cc|0|adj=ri0}}1942120Chrysler Royal/Windsor (C-34)rowspan=13 | {{cvt|3+7/16|in|mm|1}}rowspan=13 | {{cvt|4+1/2|in|mm|1}}
1946-1949114Chrysler Royal/Windsor (C38)
1949116Chrysler Royal/Windsor (C45)
1950116Chrysler Royal/Windsor (C48)
1951-1952116DeSoto Deluxe/Custom (S15)
1951116Chrysler Windsor, Deluxe (C51)
1953116DeSoto Powermaster (S18)
1954116DeSoto Powermaster (S20)
1957-1958117Chrysler Royal/Chrysler Plainsman AP1 (AUS-made)
1958-1959117Chrysler Plainsman AP2 (AUS-made)
1958-1960117Chrysler Royal/Chrysler Wayfarer AP2 (AUS-made)
1960-1961117Chrysler Wayfarer AP3 (AUS-made)
1960-1964117Chrysler Royal AP3 (AUS-made)
rowspan=3|{{cvt|264.5|cuin|cc|0|adj=ri1}}1952rowspan=3|119Chrysler Windsor, Deluxe (C51)rowspan=3 | {{cvt|3+7/16|in|mm|1}}rowspan=3 | {{cvt|4+3/4|in|mm|1}}
1953Chrysler Windsor, Deluxe (C60)
1954Chrysler Windsor Deluxe (C62)
rowspan=2|{{cvt|268.39|cuin|cc|0|adj=ri0}}1930-1932rowspan=2|93Chrysler Series 70rowspan=2 | {{cvt|3+3/8|in|mm|1}}rowspan=6 | {{cvt|5|in|mm|1}}
1930Chrysler Series 77
rowspan=2|{{cvt|288.63|cuin|cc|0|adj=ri0}}1926rowspan=2 | 92Chrysler Imperial Series E-80rowspan=2 | {{cvt|3+1/2|in|mm|1}}
1927Chrysler Imperial Series 80
rowspan=2|{{cvt|309.62|cuin|cc|0|adj=ri0}}1928rowspan=2 | 100 (std.)
112 (opt.)
Chrysler Imperial Series 80Lrowspan=2 | {{cvt|3+5/8|in|mm|1}}
1929-1930Chrysler Imperial Series L-80
rowspan=4|{{cvt|331.34|cuin|cc|0|adj=ri0}}1937-1940100Dodge ML/RL-50/53,
Dodge MK/RK-60/63,
Dodge RX-70/71,
Dodge DB8,
Dodge VL/VLA-50,
Dodge VK/VKA-60/63
rowspan=8 | {{cvt|3+3/4|in|mm|1}}rowspan=4 | {{cvt|5|in|mm|1}}
1940-1942110Dodge DC8, DD-8
Dodge WK, WL
1946-1953128 (std.)Dodge WK/WR,
Dodge B-1-T/TA/V/VA,
Dodge B-2/3/4-T/TL/TA/TAL,
Dodge B-2/3/4-V/VL/VA/VAL,
Dodge B-1/2/3-VX,
Dodge DE/DF/DG-8/9,
Dodge DH-9/10
1951-1953145
(2 carb. opt.)
Dodge B-2/3/4-T/TL/TA/TAL,
Dodge B-2/3/4-V/VL/VA/VAL,
Dodge B-1/2/3-VX,
Dodge DG-8/9, Dodge DH-9/10
rowspan=2|{{cvt|281.64|cuin|cc|0|adj=ri0}}1946-1947115Dodge WJrowspan=2|{{cvt|4+1/4|in|mm|1}}
1948-1949115Dodge B-1-R/RA/RS,
Dodge DE-7
rowspan=2|{{cvt|306.49|cuin|cc|0|adj=ri0}}1950-1953122 (std.)Dodge B-2/3/4-R/RL/RA/RAL/RS,
Dodge DF/DG-7, DH-8
rowspan=2|{{cvt|4+5/16|in|mm|1}}
1951-1953137
(2 carb. opt.)
Dodge B-2/3/4-R/RL/RA/RAL/RS,
Dodge DG-7, DH-8
{{cvt|376.99|cuin|cc|0|adj=ri0}}1950-1953154 std.
w/2 carb.
Dodge B-2/3/4-Y/YA/YX{{cvt|4|in|mm|1}}{{cvt|5|in|mm|1}}
{{cvt|413.17|cuin|cc|0|adj=ri0}}1954-1956171 std.
w/2 carb.
Dodge C-1-Y/YA/YX,
Dodge DH-11/12,
Dodge C-3-Y6/YL6/YA6/YAL6/YX6/YXL6
{{cvt|4+1/16|in|mm|1}}{{cvt|5+5/16|in|mm|1}}

Straight-8

File:1937 Chrysler Airflow.jpg]]

The new straight-8 engine is largely based on the six-cylinder engine that appeared on the Desoto Model K. It has five main levels,{{what|date=February 2025}} the central one being wider. When the engineers had to rebore the cylinders to 3-1/2 inches, the space between each pair of cylinders was modified.{{clarification needed|reason=To what?|date=February 2025}} This applies to all blocks with the same bore.

In the case of the Imperial (CG, CH), then Custom imperial (CL, CW), a new 9 main bearing straight-8 engine was developed, equipped with a two-barrel downdraft carburetor. From the CW model, the cylinder head is made of aluminum. It also powered the Dodge Trucks G-80 models (1931-1934) and Fargo buses (1930-1932).

class=wikitable
DisplacementYearsHorsepowerApplicationsBoreStroke
rowspan=1|{{cvt|207.74|cuin|cc|0|adj=ri0}}1930-193170DeSoto Series CFrowspan=3|{{cvt|2+7/8|in|mm|1}}{{cvt|4|in|mm|1}}
rowspan=2|{{cvt|220.72|cuin|cc|0|adj=ri0}}1930-193275Dodge Series DC (discontinued September 1931)rowspan=5|{{cvt|4+1/4|in|mm|1}}
1931-193277DeSoto Series CF
rowspan=2|{{cvt|240.33|cuin|cc|0|adj=ri0}}1931-193284Dodge Series DGrowspan=2|{{cvt|3|in|mm|1}}
193180Chrysler Series CD (until January 1931)
{{cvt|260.78|cuin|cc|0|adj=ri0}}193188Chrysler Series CD (from January 1931){{cvt|3+1/8|in|mm|1}}
rowspan=4|{{cvt|273.76|cuin|cc|0|adj=ri0}}193390 (std.)
98 (opt.)
Chrysler Series CTrowspan=26|{{cvt|3+1/4|in|mm|1}}rowspan=4|{{cvt|4+1/8|in|mm|1}}
1935rowspan=2|105 (std.)
110 (opt.)
Chrysler Series CZ
1936Chrysler Series C-8
1937110 (std.)
115 (opt.)
Chrysler Imperial Series C-14
rowspan=4|{{cvt|282.06|cuin|cc|0|adj=ri0}}1931100Chrysler DeLuxe CD Seriesrowspan=4|{{cvt|4+1/4|in|mm|1}}
1932100Chrysler Series CD
193290 (std.)
100 (opt.)
Dodge Series DK
1933100 (std.)
94 (opt.)
Dodge Series DO
rowspan=4|{{cvt|298.65|cuin|cc|0|adj=ri0}}1932100Chrysler Series CP (Chrysler Hurlingham in the UK)rowspan=4|{{cvt|4+1/2|in|mm|1}}
1933100 (std.)
108 (opt.)
Chrysler Imperial Series CQ
1934122Chrysler Series CU
1938110 (std.)
122 (opt.)
Chrysler Series C-19
Dodge Custom Eight (UK)Sedgwick, p. 72
rowspan=14|{{cvt|323.53|cuin|cc|0|adj=ri0}}1934130Chrysler Imperial/Custom Imperial Series CV/CXrowspan=14|{{cvt|4+7/8|in|mm|1}}
rowspan=2|1935115 (std.)
120 (opt.)
Chrysler Series C-1
130 (std.)
138 (opt.)
Chrysler Imperial Series C-2/C-3
rowspan=2|1936115Chrysler Series C-9
130Chrysler Imperial Series C-10/C-11
1937130 (std.)
138 (opt.)
Chrysler Imperial Custom/Airflow Series C-15/C-17
1938130 (std.)
138 (opt.)
Chrysler Custom Imperial Series C-20
rowspan=2|1939130Chrysler Series C-23
132 (std.)
138 (opt.)
Chrysler Series C-24
1940132
135
143 (opt.)
Chrysler C-27
Chrysler C-26
Chrysler C-26/C-27
rowspan=2|1941137Chrysler C-30
140Chrysler C-30 (opt.)/C-33
1942140Chrysler C-36/C-37
1946-1950135Chrysler Saratoga/New Yorker
rowspan=4|{{cvt|384.84|cuin|cc|0|adj=ri0}}1931-1932125Chrysler Series CGrowspan=4|{{cvt|3+1/2|in|mm|1}}rowspan=4|{{cvt|5|in|mm|1}}
1932125Chrysler Imperial/Custom Imperial CH/CL
1933125 (std.)
135 (opt.)
Chrysler Custom Imperial CL
1934-1935150Chrysler Custom Imperial Series CW

See also

{{Commons category|Chrysler flathead engine}}

References