|
7/8" spark plugs cold down to hot
|
New Champion
|
Old Champion
|
A--C
|
Auto Lite
|
Edison
|
Bowers
|
Globe
|
Blue Crown
|
Leonard
|
|
W-10
|
0 Com
|
73 Com
|
|
40-T
|
C78-C
|
6
|
73-Com
|
4-F
|
|
W-14
|
1 Com
|
74 Com
|
T-7
|
37-TS
|
C78-N
|
7
|
74-Com
|
4
|
|
W-18
|
2 Com
|
C 77L
|
T-9
|
35-S
|
78-N
|
8
|
75-Com
|
3
|
|
W-20
|
3 Com or No 20
|
78 Com
|
T-11
|
31-T
|
78-H
|
9
|
76-Com
|
2-A
|
|
W-89D
|
44
|
18
|
3077
|
|
|
10
|
78L-Com
|
1-A
|
|
W-85N
|
901
|
|
|
|
|
|
|
|
|
W-95D
|
45
|
|
|
|
|
|
|
|
The bottom three plugs are special extension models
Recommended torque for a cast iron head is 37 lb-ft
35 lb-ft for aluminum
10 mm cold down to hot
|
New Champion
|
Old Champion
|
A--C
|
Auto Lite
|
Edison
|
Bowers
|
Globe
|
Blue Crown
|
Leonard
|
|
UY-6
|
Y-4A
|
104
|
P-4
|
3-S
|
10C
|
F-10
|
T-4
|
10-F
|
|
UY-6
|
Y-6
|
106
|
|
4
|
|
F-11
|
T-6
|
10-E
|
|
UY-6
|
Y-8
|
108
|
P-6
|
2-S
|
10N
|
F-11A
|
T-8
|
10-D
|
Recommended torque for cast iron head is 14 lb-ft
12 lb-ft for aluminum
14 mm cold down to hot
|
New Champion
|
Old Champion
|
A--C
|
Auto Lite
|
Edison
|
Bowers
|
Globe
|
Blue Crown
|
Leonard
|
|
J-57-R
|
J-2
|
42
|
A3
|
58-T
|
C14S
|
12A
|
M-2-Com
|
14-G
|
|
H-8
|
H-9
|
43L
|
A5
|
57-TS
|
14C
|
13
|
M-4-Com
|
14-F
|
|
CJ-8
|
J-8
|
45
|
A7
|
55-S
|
14N
|
14
|
M-7
|
14-E
|
|
UJ-12
|
J-12
|
47
|
A11
|
52
|
14H
|
15
|
M-11
|
14-C
|
Recommended torque is 30 lb-ft for cast iron heads
28 lb-ft for aluminum
18 mm cold down to hot
|
New Champion
|
Old Champion
|
A--C
|
Auto Lite
|
Edison
|
Bowers
|
Globe
|
Blue Crown
|
Leonard
|
|
D-6
|
4 Com
|
82S
|
|
|
C18C
|
|
R-82
|
6
|
|
D-9
|
5 Com
|
83-S
|
B5
|
49-TS
|
18C
|
24
|
83 Com
|
6-F
|
|
D-14
|
6 Com
|
84
|
B7
|
48-TS
|
|
25
|
84 Com
|
6-A
|
|
D-16
|
7
|
85-S
|
|
45-S
|
18N
|
26
|
85 Com
|
5-HD
|
|
D-16
|
8 Com
|
86
|
B9
|
43-TS
|
|
27
|
86
|
9
|
|
D-21
|
C-15
|
87
|
B11
|
43
|
18H
|
28
|
87-S
|
5
|
|
D-23
|
10 Com
|
88-L
|
388
|
44-HS
|
|
|
88
|
8
|
|
D-89D
|
49
|
18A
|
|
42-T
|
|
|
|
|
The bottom plug is a special extension model
Recommended torque for cast iron is 34 lb-ft 32 lb-ft
for aluminum heads
For 1/2" pipe plugs recommended torque in cast iron
is 35 lb-ft
All values are for clean lubricate threads.
Over tightening a plug with a .025 gap the gap will
increase to .031.
Created from a 1947 heat range list and current Champion
list.
by Chris Klossner
klossner@worldnet.att.net
|
