Upper Engine Detail
1.    Rail, Fuel Injection Detail
2.    Nut, Htr Otlt Pipe (M8 x 1.25)
3.    Hose, Pressure Regulator Vac
4.    25523161  Seal, Exh Pipe C/Over to RH Mfld
5.    25530037  Flange, Exh Pipe C/Over
6.    Bolt, Flange (M8 x 1.25 x 40)
7.    25534608  Pipe, C/Over W/ Heat Shld
8.    25531491  Cap, Oil Fill
       25525839  Seal, O-Ring Oil Fill Cap
9.    Cover, Eng Valve
10.  25534746  Bolt, Valve Cover
11.  25534749  Grommet, Valve Cover Bolt
12.  25535081  Pipe, Htr Inlt
13.  Bolt, Hex Hd (M5 x 0.8)
14.  25535704  Bracket, Accl Cable Mount
15.  25533035  Pipe, F/Vpr Cnst Purge
16.  Nut, Hex Flg (M5 x 0.8)
17.  25535135  Throttle Body Assm
Detail
18.  Bolt, Hex W/Washr (M6 x 1 x 32)
19.  25533243  Gasket, Clnt Outlet (Thermostat)
20.  25533242  Coolant Outlet
21.  Bolt  (5/16-18 x 1.12)
22.  Stud, Clng Outlt (5/16-18 x 2.6, M8 x 1.2 x 52)
23.  3947770  Key, Engine Valve Spring
24.  25535478  Cap, Engine Valve Spring
25.  25530142  Seal, Exhaust Valve
26.  25533545  Spring, Engine Valve
27.  25533440  Bolt, Valve Rocker Arm
28.  12328750  Pivot, Arm Cyl Head
29.  3037747  Thermostat (195 Degree)
30.  1535540  Stud, Thrtl Bdy (M8x1.25x15; 40 OAL)
31.  5234670  Lifter, Hyd Roller
32.  25534766  Guide, Lifter (At Int. Valley)
33.  Hose, C/Case Vent (N.S.)
       25535462  Tube, C/Case Vent
       25535463  Hose, C/Case Vent
34.  25532387  Guide, Vlv Pushrod
35.  25532737  Rod, Vlv Push
36.  12328750  Arm & Pivot Kit, Cyl Head
37.  25532059  Head, Cyl
38.  25532376  Gasket, Cyl Head
       12337687  Kit, Cyl Head Gasket Overhaul
39.  R44LTS6  Plug, Spark Standard
       25332828  Plug, Spark Performance
                         (AC Delco Rapidfire #14)
40.  Brace, Eng Lift Brkt Rr (N.S. Used on Prod Line)
41.  Bolt, Eng Lift Brkt Rr (N.S)
42.  Bracket, Eng Lift Rr (N.S.)
43.  Pin, Cyl Head Loc (1/4 x 1/2)
44.  25532066  Valve, Exh (Std)
       25532760  Valve, Exh (.010" O.S.)
45.  25530577  Indicator, Oil Lvl
46.  Stud (M10 x 1.5 x 20, M8 x 1.25 x 15)
47.  Nut, Eng Lift Bracket (M8 x 1.25)
48.  25534611  Shield, Exh Manif Ht - LH
49.  Nut, Exh Manif H/Shld (M8 x 1.25)
50.  22532377  Tube, Oil Lvl Ind
51.  Bolt, Cyl Head
52.  Bolt, Cyl Head
53.  Bolt, Cyl Head
          
* Bolts are Torque-To-Yield.  Kit Required
             
Click here for tightening sequence
54.  25526575  Stud, Exhaust Manif
55.  25534609  Manifold, Exhaust LH
56.  22540121  Bracket, Eng Mt Strut to Head
57.  Spacer, Eng Mt Bracket to Head
58.  Bolt (M10 x 1.5 x 36)
59.  Channel, Spark Plug Wire
60.  25534671  Bolt, Dr Belt Tens Brkt
61.  25530979  Bracket, Dr Blt Tensioner
62.  Nut (M6 x 1 x 5.5)
63.  Stud (M10 x 1.5 x 57.5, M10 x 1.5 x 15)
64.  25533077  Support, Generator
65.  Ignition Module / Coil Assy (Delco Ign.)
       10467439  Ignition Module
       10497771  Ignition Coil (3 used)
       12040798  Seal (For 13 Pin Connector)
       1989579  Seal (For 2 Pin Connector)
       10467438  Screw, Coil Attach
66.  12073967  Wire Set, Spark Plug
67.  25534210  Stud, Dr Belt Tens
68.  Bolt (M8 x 1.25 x 60)
69.  Bolt (M10 x 1.5 x 68, M8 x 1.25 x 15)
70.  25532290  Tensioner, Dr Belt
71.  25036979  Sensor, Clnt Temp
72.  25036629  Switch, Clnt Temp (w/ guage)
73.  22535489  Bracket, Eng Lift Front
74.  25537066  Pipe, Htr Outlt
75.  25531836  Retainer, Vlv Lifter Guide
76.  Gasket, Int Manfld End Seals (Incl in overhaul kit)
77.  Gasket, Int Manfld (Incl in overhaul kit)
78.  25536708  Manifold, Intake
                        
*Tightening Sequence
79.  25532090  Gasket, Throttle Body
80.  25533036  Harness, Vac Sce
81.  25533372  Manifold, Exhaust RH
82.  25105107  Sensor, Oxygen (1 wire)
83.  25535802  Shield, Exh Manif Ht - RH
84.  14001192  Grommet, C/Case Vent Pipe
85.  1381487  Grommet, Int Manif C/Case Vent Vlv
86.  25098058  Valve, C/Case Vent Cont
87.  Hose Clamp
88.  25536368  Grommet, C/Case Vent Vlv
12337686  Engine Overhaul Gasket Kit
Always consult GM Service Manuals before performing any service on engine.
This is intended as a guide only.  It is always wise to verify specific apps with a GM Parts Specialist.