Ptston
Displacement
-----·••H•--·-·-·····---····
23.9 Cubie ll:lclles
Comprelllll!io!l
Ratio -······-····-·-····---···-········-··-··
6
to
1
M'.u:.
Comp,
at
Crankl.ng Speed
(Er,g:ll;e
at
Operating
Teffll}ll:ratu:re
--•-••u•n••-·-••··•-•
0
••
HO
to
120 PSI
at
Sea
Level
C~ Vacuum( Engine Running)•·· 5
to
10
Inches
Vacuum at Sea
Level
lgmtl.on ----·-··------------···---
lZ Volt Coil, B:rfllte:r Point
CVLINDl$R BORE
D~:r
ct
Cylinder
Bore
St<:I.
A, B -•--·····•·• 3,2$0$..3.21>45 lru:hes
.010 Overs!.Ze A, B
♦
10•·········--··· 3.2605-3.26111 lnches
.020
Oversize
A, a
+
20 3.Z'IOS-3.271$
lru:llea
.030
Oversize
A,
B •
3C
---•H-••--··· 3.2005-3.281
!I
1ru:hell
Cyllnde:r
Bore Must Be
Bo:red
or Hooed Offr111h\e
!f
Tllpff or 00
oC ntnmd
~
··••----•••·•-••·•-··---•·•••····•-••• .OO!l 1nelletl
PlSTON
AND
PISTON F'fN
Olameter
ot
St<:I.
Piston at
Bottom ot
Skirt •······
a.M'l0-3.2480
!neh&s
lllameter
ot
Sid.
Piston
at
Top of Skirt •··-··-··· 3.2425-3. 253$ lnehes
(Mealmred
J1lSt
Below 00 BIDS)
~r
ct
Std. Pllllton
lit
Top ····----·-····•···· 3.213-3.220 1nelletl
PlBton
Pin···-··•···-•·••··----·····
Fuli Floating'.
'fyp,:,,
Retained
tn
Place With Two
Retainer
RiuP.
Piston
Pm Bore
in
Piston Std. •····-·-······--·-·- .!1595-.8596 :tnclie&
PlBton
Pin
Diameter
Std.
•···-···--··••H••···--
.8591-.8$93
1nehes
.005
Ove:-me--•-·-·······
.0041-.0043 1nelletl
Pl8toll
Pill
Lengtn---•-•••-•-••••••-•H••--
2.733-2.7$31.oohes
Pl8ton
Pln Fit
in Pllllton (Select Fit) ---·········-· .0000· .OOOS fnebes
PlBtOn
Pill
Fit
1n
Con.nootl!lg
Rod ---•••••••••••••-
.0003-.000$
lncliell
PlSTON RtNGS
RinP
Per
Pl.lllton ---·----------------·------
(Z Compr-10n-1
Oil}
lllJl(Top)Compression•Ctlrome, Taper
Face, RelleHndiclltes TQP
Side
St4e
Clearance•··---·-·-··-
.ooz •.
004 1nelletl
Width -·····-······-·····-··
,093- .004
l'.nchff
and
Compressioo-Cbrome, Relief tndicatea Bottom Side
Side Clearancec -···-··--··· .0015-,0035 !neh&s
Wldth •-• •••---••-•••-•••••• .00$-.094
1nehes
31/'d 00 :rung •·-····•····•··-------••-----
Caat W/E:z;,ander
Sidi)
Cieuance ••••••••••••
u.001-.003
Ioohes
Width•-·-••--------.1800-.18'101nelletl
rung
End
Gap• When
Installed
in
Bore-·····-·······
.010-,020
l'.nehe11
Replacement BIDS
Width
1st. Comp. ---··--····--· .00211 ••
ooas
!nebea
2nd.
Comp.•-·-·····•--··- .0065-.011'15 Inches
2nd. Comp.
Rail•·••-•-
,02$$..,0245
1nehes
3rd. OU
Rail -··-··--····
.02'35-.0245
lnehes
3rd
OU
:rung ··•----·•••-·--·
.134-.lllS 1nelletl
CONNECTING ROD
C~
Rod
Length
!rom Center
ot
Pin
Hole
To Center
o!
Belllrlllg
J~ --------··--·--·-··
6.li60-ll,66Z
1nchelll
Piston
Pin Hole DI.a.meter
In
Rod*"··············· ,8596-.85\ill lnehes
1.nWle
D~r
of
Rod
Jou:mal,
St<:I .............
t.5005-U!OlO Inelles
Underlllze ·--·-·-·••·-·· 1,4905-1.4910
lnellea
COOlleetl!lg Rod to
Cl'lmk Journal Clearance-·-····· .0005-.00lS tnehes
COOlleeting'.
Rod
to Crank
End
Play
Clearance•-····-· .001 ••
ou;
l'.nehe11
CRANKSHAFT AND SEARINGS
Crank!llwt
Rod
Jow.-nal
Width·••---•·••-··••· l.0'19--1.084
lnchelll
C:ra.oklllbatt End ··-------------------------
.003-.02,0
Inches
Measured
lit
Pwe
and
Shim te Proper End
Play
CAMSHAFT
c~ End Play
•••••---•-•••••••••••••H•••--
.00$..,010
~
~
Pin
!llameter
•·----------•--···-··••4000-.41Hl5
~
ClllUllatt Inside Diameter •···········-··-·-···-· .4995-.5015
Inehea
Camshaft
Pln
to Camshaft
Clea:ranee •••••••••••••••• 001-.0035
lnehea
Camshatt Pin to B:-ealalr Cam Clear!lllee
•-·••·••u•
,001-.00Z5 lnehea
VAL Vii! l..11""'1'1MS
ValTii
Littllr
Outside~
In
ID.eek •••••• ._ •••
6232-,5ZS'l lnchell
VALVES
l'ntake
Valve Tappet Clearance (Cold) .................
ooa-.010
Inches
Exhaulllt Valve Tappet Clea:rance (Cold) •-········-··•J:ll7•.020 l'.nehe&
Angle
ot
Valvec Face • l'.ntalte and
Exhaust: •··········-·-··
44 D;ig:rees
Va!ve
Levgth -
Intake
and
Exhaust .•.....•.......
4.572-4.582 lnchell
Mu.
Valve Face
Runoot -
Intake -···-·--------- .0015 lnehes
~. Valve
Face Runout -
Ex!la:usl --·--·-······-········
.003 'Inches
Valve Hecad Diameter • lntalte --·········--·-·-··· 1.370-1.380 inches
Valve
Head Diameter •
Exhaust
H••-·-·····-··--· 1.120-LUO lnclles
Valve
stem Diameter•
lnta.k& •·-······-·-·--···
.3105-.3110 Inches
Valve Stem
Diameter•
Exhaust-----··········-··
,3090-,3095
lnehes
Intake
Valve
stem
to
Guide Clearance --------- .001 •• 0025
1nchell
Elthaulllt
Valve
Stem
to
Gulde
Cleuance •-----
.0025-.004
lnebes
VALVE SEATS
Seat
Angle • l'.ntalle am
Elthaulllt -·····••·•••·•-•-•---····
4$ Degrees
Max.
Seat
Runoot -
lntalte
am Exhaust -·······--··-······ .002 mches
Sot Width•
lnta.ke ··--··-----··•··•---·•-··
.037-.045 lnchaa
Sot
Width -
Exhmllllt --··-----········--··-·-- .031-.062
lnehes
Elthaulllt
Seat
lnserl
••u••·······--·-•••••----·•••·--·
Replaceable
Ontlllde Diameter
ct
Exhaust Insert--·········•• l.2635-LZMS mehes
l!lma:ullt
lnlllert
Height ••••••••••••••••••••••••••••••
2Hl-,221 mehes
VALVE GUIDES
Valve
Gulde
Length
•········•···-········-···--••H•
2.12'5
Xoohes
Valve Guidec
to
Bloek (1?:ress Fit) -···--·---······- ,0005-,002. lnehea
Valve
Guide
lnlllid.e Diameter• Before
lnatal.llng ••••••
30'1-.306 inches
Ream
Valve Guides After
lneteilillg
w
•·····•·····:112-.313
:tncbea
VALVE Sf"RINGS
Sprlllg F:r11e Length
•·····••h••···-·····
•······--··-·-1,'l93
l'llebea
Sprlllg Pressure When Comp.
tn
1,469 ln. (Valve C10llled)•47 to :11 Ll:>11.
Spring
PreBBW'e
When
Colllp.
to
1.Hl5
fu,
(Valve
Open} •••
54
Ix>
IIZ
lbs.
GOVERNOR
~
Slllh
Sb.aft
Oll:tllide Dlimleter •--····•····· .3'135-.$'140 lneliea
Govemo:- Gear Bore
tor
Stub
Sb.aft
-----·-····-·····374!1•.3'155 mehe11
Stub Shatt
to
Governor Gear Clearance---··-·····-· ,0005-,00Z lnchea
Guvernor Sprlllg Free Length With 2 Lbs. Pre-Luad ~~--~~-Z.62 Inelie&
Governor
Spring
Exl.ended
to
2.$8
lneliea ---·-··-- 5.6
to
IU
Pounds
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