Document LJZvQDxZQYpaEr5r4x7n6Rmrq
A. -..
Automobile Manufacturers Association
Consolidated Specification Questionnaire
For 1?^0 Model* Mechanical Details
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PA'^KNOJSR CAK Detroit 2, Michigan
7Tb. 15, 1950
m MJ ImWf* U
*4 t. vftd*~i4*d Hf* the follow!#, dota or# seb|ect to corroctloe l> the com o#
*f m pon4mcdl-- rf tfc# *imm *Ms ceapilafloe wot req*wsted.
* --* *g<d U factory Potlsrorod price should bo Included Is this questionnaire.
>1/2
6
Trv-head >3/4
Caat Alley Iron Mr HO
216-5
29.4
Tv M a--X SA MMi ytoi'.oitrmtt <jjttK*MA Vf U*F. at sea 'Uraawv pntewwrt 29 92 tf*4n of exrcvry) wsd standard
w
js*, u ;
"*3 )
--Vi>b Bare
LW^r i^ek* k*.
^
* 3400 . %ju.
-WtO. Vogjaxd AonyW *
Mr/w *vo V
^5
nt 3300
ILP.M.
7Vd< MM/bvd M/4MCTSCS Atedcd fe*T DUfOdl OpCf&UOa UXlud' r, onrtff, **r deaner, oeuflW, mamfolde, fuel and
W* W.
ft. *. 1A7^6
*.V1J0-0A0J--C2s0J0J0V MM'
W-ft #r^d e*eeeri.* ft. ft., ATP* 1000-2000 RAM.
**->
Md
0*^1
(VUmI
Hone
Ad v*(ir| >#d A# **et *-P*t
110
Own
1<JtLt|f Caat Alloy Iron, wurface treated
ihmrt, mom ttmi, o*d, thbplatrd, aluminum
PISTONS d RIN*S (coat'd)
Piston ring groore depth-- Oil -170-.193
Compton
.l4?0-.l6U5
No. of oil rings used per piston . . Width of oil rings
.................... ............ Q?18 -i860-. 1865
Width of oil ring gep
.........................005-.,015
No. vf compression rings used per piston
.
. TWO
Width of compression rings
. . ............................ .1235--1240
Width of compression ring gep
..
.0Q5- 015
Meximum well thickness of oil rings .
. . *155 WW*
Meximum well thickness of compression rings ............. *r/5. MSX*
Are ring expenders used.
............................................................ .N
SODS oid PINS
Wrlstpin-- Meteriei
Chromium Steel (file hard case)
Ungth 3.135-3.165 Dlemeter .86.45-. $65Q
Locked in rod, piston or floeting . .
Locked Ip. PPd
Ci.er.nc. in pl.lon Pin Ashing........... Slip fit
Connecting rod--
Length--rm/rr to cantor . .
Meteriei
..............
Weight--our#/ ....
.....................
6-13/16.
Drop-forged steel
........................
31-2
C'tLHT*3U-2.3X?
u.,th1.436-1.439.
Lower beering--
Meteriei . Cleerence End pley
.0003 .oo4
High lead babbitt .... . ...' ..0013.
p........................... .012
Shiffl fpBfr-iolId, Jaminato,d_o_r__m_o_n_o_
...
Laminated
Spun of Hpini,
Spon (oentrifugally cast). '.
Rod, and putoni rmovd hem bov* or b*l
Above
rtfr ** * ~
uif
Tap /W
'0155
ttrt Put 0B dXTl5
.............. MX
Held on .003
CIANKSHAFT
w.i,m-.tripfU
7 ......Prop-forged, steel (pounds)...................................................... 70
Vib/etlon dempencr used-y#i or no
............................ .... ,T.WP..
Typ# ............Oacilletlng; (rubbfr.Goeted)..
1950 MOOCL SPECIFICATIONS
Mata mi Cm
CHEVROLET
Modi PASSENGER CARS
PAGE 7
o^. 15, 1950
Ccoeatervreishts aaed. mmrxbm of
W%icb maiy bearing fakm* thrust
Cra'bke* end play
....................
7 #3 .003-.009
VAIVKS (coot*4) Spring pcfsart enc e*gp- , Witn valve dosed-f*. With reive ^mr-Jb. 124-LaO
Leogtti out of e-.g>^--au.
i.3a
1.505
2-1/8
Typa: Cast-Sa or
............. ip4n Precision
H lip-*a: IUmcrbl* from below Necassery to align ream
M_. , steel-backed CW.1
...
thin wall
* *^
babbitt .......000EX7H-A0U0ST28VALVE-
Sblr-solui. Umrm^cJ or MU .......................................?P?44.
Male baaring ooml diameter * lanafH--
.
...
No.,
2.6835-2.681)5 x I-29M
Me. 7
2.7145-2.7155 X 1-7/16.
Me. J
2.7U55-2.7465 X 1.43145-1.U385
Me. 4
2.7765-2-7775 x 2-3/32 *
' 2^*6850-2.6866 x 1-3/16
^. fc } Me. 4
...................2.7160-2.7176 X i-1/8 2.7I470-2.7I486 X 1.1|295-1.1*315
. ;... 2.7780-2.7796 x 1-5/8
Crankshaft gear
M.U
................................................................... 0,m
M^ri.1 .................................................................Steel
Meka ............................
Material
Extruded
Overall length
Actual overall diameter of bead
Minimum pert diameter
high
On chrome steel
14.917-U.9U-'
1-1/2
l-i/u
Angle of leaf U valve seat an insert?
Ho
U5 MaMrU! Cylinder Head
Stem diameter Stem to guide cleareece
tan... .
002
.3400-.3U07 ..jv . -0037
.3113,
Spring preuure end leagth
Outer-- Witn valve doted--4.
53-63
i*.
1-921
With valve open--/, 122*-liO ^
l-505j.
Length out of nogiae-sav.
. 2-l/8
CAMSHAFT
Cwmmkih 9ear ......................................................... Various
Uiimimt Bakelite and fabric composition with steel hub
VAim IKTAICE VALVE
............... Extruded sillchroae steel
Operating tappet clearance (hot or cold]Tappet clearance for valve timing- fCeir
Operating tappet clearance (Sot or cold]
Tappet clearance for valve timing--ertl
Hydraulic valve lifter*--jes or mo
Valve timing-- (theoretical)
Intake opens A
degrees AUDC
Intake closes 39 .... - ALDC
ExHautt opens 4?....... " ILDC
Exhaust closes 9
" AUDC
.006 hot
.013 hot Zero-Lash jfl exh,
0
Actual ovarall diameter of bead................................... 1-41/04
Minimum port dismotu .......................................................................... m AogU of seat ............................................................................... 30
b valve seat M insert? ................................................
-Wo
Slam diameter............................................................ ,3UlO-.3Ul7
Stem to guide doaraoco ......... 001................to ............mQ027
lift ......................................................................................................2?Ul
1-7/8" not including undercut
Valve Timing Marb om Fljurberi
LU MIC ATIOM
Lubricating system type press*** Oil pressure to--
Main bearings--yes r aa .. Connecting rod*--yes or mm Wristpins---yes or mo Camshaft baanags--yes m m Tappet*--yes or mo ..............
Rocker Arms.........
spLmy Pressure, pressure streaa and splash.
.......................... . Tes Pressure stream
No
Tea
............................. Ho
...................................Tea
1950 MODEL SPECIFICATIONS
. CHEVROLET
.1 O'
-i Mh4i PSWKWIHI CAie*.
PAGE 6 O.H 'SP. 15, 1950
jTlI*'"*
_Hour Qlann Worm and Hall Hour Inn
Typ*
Make
Ron0r r.ector - fliwnl-llewornU.I*.
Saginaw
Mod.l
Ratio
.............................................
I7.)ul
Lubricent recommended..................
3*M* Nol.ey ft
Steering whedl diemeter
........ ............
17-l/U"
Drag link longitudinal or tramvorio
longitudinal
T# rod--one or two
..........
Two
Is Intarmodiata itaarlng arm usod
...................... Yw/i
Humbar of turns of itaarlng whaal for full loft
to right swing of whoals
h.U
Car turning radius-fat--right, lift or both
R - 19.?5**
Cast*r-degnn 30* - 30'
L - 19.75**
Cember--decree# or30* - 301
0*0 ........... . 1/8Toe-in--iacbai ..........
to ...................... .
..
Crouwisa inclination of kingpin--degr##/
h * 30'
,,i^IndePendent front wheel auapenalon
M.k. .......... O'"1..................... Mod.l Paaflenger Car
Soctlon typo-I-beams, tubular or nont Part of Frame
End typo--Elliott or rtverta Elliott RftVerae Elliott
Minimum road cleerence--tins inflattd 7*13/l6n IJnder Coil Spring Seat.
IRAKIS
Foot brakas--
Maka ..........................................................................................
.
Typo of mochanism, hydraulic or mtchanlcal Ry^raullc.
If vacuum booster is standard, stato mako ..............................Non
Brake lining moulded, semi-moulded or woven--
Bonded
Primary shoe Roll molded asbestos composition
Secondary shoe Full molded asbestos composition
Drum--
M.t.ri.i .. See Note 0 .. Dton-tar........... U.-O".
Lining-
Ung* par .K..I .............................................................20-5/6'!.
<d)
Width
1-3/).
Clearance lee r'** Note fl
Total foot t.ieklng
TMekeea A##/
.187--.19U-
Se* Hot* 4
150 Sq.In.
Per* ant biaklng piiwir on rear wheel*
U2.}<
Hand lever opaulii oe Iram'mhtiou. i*p irali riar brabas. 'rw ;erw-
if# brain or all lour imhr b4i Rear Service Brakes
PRAM! mud OTHIR IMIRAL DATA
Frame-- 0p\b-maximum Thickntis maximum Flenge width-- maximum
Wheelbase
U-37/6U"
1/9" 3-7/9" 115.0"
TreadFront Rear
..
...
.
57.0"
59-3/U"
Weight of standard S-peuenger. four-door
Skipping Styleline 3120 lb.; Fleetline J115
Curb Stylellne 32$0 lb.; Fleetiine 32'j5
Price of standard Spettenger, 4-door sedan
*iu6o.oo uy
First serial ewmber. this series
^i
Serial number location
Stamped Cn plate on left
front body hinge pillar.
Overall length of car-- *** With bumpers end bumper guards
Overall width of car Overall height, reed to reef with no lead
197-1/2* 73-15/15'
#
* - Steering Gear, Multi-Purpose Gear Lubricant or Chassis Lubricant.
** - Minimum Walled Circle - R - 20.25 L - a.00
0 - Composite-Cast Alloy Iron Rim and Cooling Ribs with Pressed Steel Web.
39 - Special eeriee HJ-lOOlj Deluxe Seriee HX-1001.
# - Adjust to slight drag. Back off four notches.
*** - Station Wagon 190-l/U.
t - Fleetline - 6J.-7/8". Styleline - Sedans, Coupes - 65-3/U".
Station Wagon - 70-1/9". Sedan Delivery - 67-5/9". Bel Air,
Convertible - 6b-l/l6 (A)- Suggested A.D.P. effect!" 1-7-50