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6A4-36
1977 PONTIAC SERVICE MANUAL
VALVE
.
INTAKE
Diameter Head
....................................................................
1.880"
.
1.870" (350)
2.000"
.
1.990" (403)
Diameter . Stem
...........................................................................
3425"
. .
3432"
.
....................................................................................................
Angle Valve
44"
Angle
.
Valve Seat
.............................................................................................
45"
Width
.
Valve Seat (Cylinder Head)
................................................
037"
..
075"
Overall Length
............................................................................................
4.667"
Clearance in Guide
........................................................................
00 10"
. .
0027"
Lash
.......................................................................................................
Hydraulic
VALVE
.
EXHAUST
Diameter
.
Head
................................................................
1.497"
-
1.507" (350)
1.497"
-
1.507" (403)
Diameter
-
Stem
..........................................................................
3420"
-
.
3427"
.....................................................................................................
Angle
-
Valve
30"
Angle
-
Valve Seat
.........................................................................................
31"
Width
-
Valve Seat (Cylinder Head)
...............................................
050"
-
.
090"
Overall Length
............................................................................................
4.675 "
.
Clearance In Guide
........................................................................
0015"
-
0032"
Lash
.......................................................................................................
Hydraulic
VALVE SPRINGS
Length
............................................................................................................
1.96"
Diameter . Wire
..............................................................................................
192"
Inside Diameter
.............................................................................
1.065"
.
1.041.
Load
...................................................................................
76-84 Lbs
.
@
1.670"
Load @ 1.270"
.................................................................................
180- 194 Lbs
.
VALVE LIFTERS
Diameter . Body
...........................................................................
8422" . 23427"
Length . Overall
.........................................................................................
2.000"
Clearance in Boss
...........................................................................
0005"
. .
0020"
Also available in
.
010" Over Size
CAMSHAFT SPROCKET
Width of Sprocket
..............................................................................
420"
. .
400"
Pitch
................................................................................................................
500"
No
.
of Teeth
.......................................................................................................
36
CRANKSHAFT SPROCKET
Width of Sprocket
............................................................................
410"
. .
400"
Overall Width of Gear
....................................................................
1.001"
. .
991"
Pitch
................................................................................................................
500"
No
.
of Teeth
.......................................................................................................
18
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