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Stock-SS Class Tool
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NHRA Classes/Indexes
About
NHRA Classes & Indexes
Classes
Indexes
Eliminator
Category
Designation
Weight Break
1/4 Mile Man
1/4 Mile Auto
1/8 Mile Man
1/8 Mile Auto
Stock
Regular Classes
AAA/S
7.00 lbs/hp
10.40
10.40
6.63
6.63
AA/S
7.50 lbs/hp
10.70
10.70
6.91
6.91
A/S
8.00 lbs/hp
10.95
11.00
7.06
7.10
B/S
8.50 lbs/hp
11.20
11.25
7.21
7.24
C/S
9.00 lbs/hp
11.35
11.40
7.31
7.32
D/S
9.50 lbs/hp
11.50
11.55
7.39
7.42
E/S
10.00 lbs/hp
11.65
11.70
7.47
7.50
F/S
10.50 lbs/hp
11.80
11.85
7.57
7.60
G/S
11.00 lbs/hp
11.90
12.00
7.62
7.68
H/S
11.50 lbs/hp
12.00
12.15
7.68
7.76
I/S
12.00 lbs/hp
12.20
12.30
7.79
7.86
J/S
12.50 lbs/hp
12.35
12.45
7.89
7.94
K/S
13.00 lbs/hp
12.55
12.65
8.00
8.05
L/S
13.50 lbs/hp
12.70
12.70
8.08
8.08
M/S
14.00 lbs/hp
12.85
12.85
8.18
8.18
N/S
14.50 lbs/hp
12.95
13.00
8.22
8.26
O/S
15.00 lbs/hp
13.10
13.15
8.32
8.33
P/S
16.00 lbs/hp
13.35
13.45
8.46
8.51
Q/S
17.00 lbs/hp
13.65
13.80
8.62
8.71
R/S
18.00 lbs/hp
13.95
14.05
8.79
8.85
T/S
19.00 lbs/hp
14.40
14.40
9.04
9.04
U/S
20.00 lbs/hp
14.65
14.85
9.17
9.30
V/S
22.00 lbs/hp
15.25
15.50
9.51
9.65
W/S
24.00 lbs/hp
16.40
16.65
10.17
10.32
Stock
Front Wheel Drive Stock
AAF/S
11.00 lbs/hp
13.50
13.50
8.54
8.54
AF/S
13.00 lbs/hp
13.85
13.85
8.74
8.74
BF/S
16.00 lbs/hp
14.65
14.65
9.17
9.17
CF/S
19.00 lbs/hp
15.60
15.60
9.71
9.71
DF/S
22.00 lbs/hp
16.50
16.50
10.23
10.23
EF/S
25.00 lbs/hp
17.45
17.45
10.82
10.82
Stock
Factory Stock
FS/AAA
5.00 lbs/hp
9.15
9.15
5.99
5.99
FS/AA
5.50 lbs/hp
9.40
9.40
6.14
6.14
FS/A
6.00 lbs/hp
9.70
9.70
6.32
6.32
FS/B
6.50 lbs/hp
10.00
10.00
6.50
6.50
FS/C
7.00 lbs/hp
10.30
10.30
6.68
6.68
FS/D
7.50 lbs/hp
10.60
10.60
6.86
6.86
FS/E
8.00 lbs/hp
10.95
10.95
7.06
7.06
FS/F
8.50 lbs/hp
11.20
11.20
7.21
7.21
FS/G
9.00 lbs/hp
11.35
11.35
7.31
7.31
FS/H
9.50 lbs/hp
11.50
11.50
7.39
7.39
FS/I
10.00 lbs/hp
11.65
11.65
7.47
7.47
FS/J
10.50 lbs/hp
11.80
11.80
7.57
7.57
FS/K
11.00 lbs/hp
11.90
11.90
7.62
7.62
FS/L
11.50 lbs/hp
12.00
12.00
7.68
7.68
Super Stock
Regular Classes
SS/A
6.00 lbs/hp
9.65
9.70
6.28
6.32
SS/B
6.50 lbs/hp
9.90
9.90
6.44
6.44
SS/C
7.00 lbs/hp
10.05
10.05
6.53
6.53
SS/D
7.50 lbs/hp
10.20
10.20
6.62
6.62
SS/E
8.00 lbs/hp
10.25
10.35
6.65
6.71
SS/F
8.50 lbs/hp
10.35
10.45
6.71
6.77
SS/G
9.00 lbs/hp
10.45
10.55
6.77
6.83
SS/H
9.50 lbs/hp
10.50
10.60
6.80
6.86
SS/I
10.00 lbs/hp
10.55
10.70
6.83
6.91
SS/J
11.00 lbs/hp
10.80
11.00
6.98
7.10
SS/K
12.00 lbs/hp
11.00
11.25
7.10
7.24
SS/L
13.00 lbs/hp
11.25
11.45
7.24
7.36
SS/M
14.00 lbs/hp
11.60
11.85
7.45
7.60
SS/N
15.00 lbs/hp
11.95
12.15
7.65
7.76
SS/O
16.00 lbs/hp
12.20
12.30
7.79
7.86
SS/P
17.00 lbs/hp
12.50
12.65
7.97
8.05
SS/Q
18.00 lbs/hp
12.65
12.80
8.05
8.14
Super Stock
Factory Super Stock GT
FGT/AA
5.00 lbs/hp
8.50
8.50
5.59
5.59
FGT/BB
5.50 lbs/hp
8.65
8.65
5.68
5.68
FGT/A
6.00 lbs/hp
8.80
8.80
5.77
5.77
FGT/B
6.50 lbs/hp
9.20
9.20
6.01
6.01
FGT/C
7.00 lbs/hp
9.80
9.80
6.38
6.38
FGT/D
7.50 lbs/hp
9.90
9.90
6.44
6.44
FGT/E
8.00 lbs/hp
10.00
10.00
6.50
6.50
FGT/F
8.50 lbs/hp
10.10
10.10
6.57
6.57
FGT/G
9.00 lbs/hp
10.20
10.20
6.62
6.62
FGT/H
9.50 lbs/hp
10.35
10.35
6.71
6.71
FGT/I
10.00 lbs/hp
10.50
10.50
6.80
6.80
FGT/J
10.50 lbs/hp
10.60
10.60
6.86
6.86
FGT/K
11.00 lbs/hp
10.75
10.75
6.95
6.95
FGT/L
11.50 lbs/hp
10.85
10.85
7.01
7.01
FGT/M
12.00 lbs/hp
10.95
10.95
7.06
7.06
FGT/N
12.50 lbs/hp
11.05
11.05
7.13
7.13
Super Stock
Factory Super Stock
FSS/A
5.00 lbs/hp
8.80
8.80
5.77
5.77
FSS/B
5.50 lbs/hp
9.20
9.20
6.01
6.01
FSS/C
6.00 lbs/hp
9.65
9.65
6.28
6.28
FSS/D
6.50 lbs/hp
9.90
9.90
6.44
6.44
FSS/E
7.00 lbs/hp
10.05
10.05
6.53
6.53
FSS/F
7.50 lbs/hp
10.20
10.20
6.62
6.62
FSS/G
8.00 lbs/hp
10.25
10.25
6.65
6.65
FSS/H
8.50 lbs/hp
10.35
10.35
6.71
6.71
FSS/I
9.00 lbs/hp
10.45
10.45
6.77
6.77
FSS/J
9.50 lbs/hp
10.50
10.50
6.80
6.80
FSS/K
10.00 lbs/hp
10.55
10.55
6.83
6.83
FSS/L
11.00 lbs/hp
10.80
10.80
6.98
6.98
FSS/M
12.00 lbs/hp
11.00
11.00
7.10
7.10
Super Stock
Super Stock GT
GT/A
6.00 lbs/hp
9.60
9.70
6.26
6.32
GT/B
6.50 lbs/hp
9.70
9.80
6.32
6.38
GT/C
7.00 lbs/hp
9.80
9.90
6.38
6.44
GT/D
7.50 lbs/hp
9.90
10.00
6.44
6.50
GT/E
8.00 lbs/hp
10.00
10.10
6.50
6.57
GT/F
8.50 lbs/hp
10.10
10.25
6.57
6.65
GT/G
9.00 lbs/hp
10.20
10.40
6.62
6.73
GT/H
9.50 lbs/hp
10.35
10.50
6.71
6.80
GT/I
10.00 lbs/hp
10.50
10.65
6.80
6.88
GT/J
10.50 lbs/hp
10.60
10.80
6.86
6.98
GT/K
11.00 lbs/hp
10.75
10.90
6.95
7.03
GT/L
11.50 lbs/hp
10.85
11.05
7.01
7.13
GT/M
12.00 lbs/hp
10.95
11.20
7.06
7.21
GT/N
12.50 lbs/hp
11.05
11.30
7.13
7.27
GT/O
13.00 lbs/hp
11.10
11.45
7.16
7.36
GT/P
13.50 lbs/hp
11.30
11.55
7.27
7.42
GT/Q
14.00 lbs/hp
11.50
11.75
7.39
7.53
Super Stock
Hemi Class
SS/AH
6.00 lbs/hp
9.45
9.45
6.18
6.18
Super Stock
Super Stock GT Truck
GT/TA
9.50 lbs/hp
10.55
10.55
6.83
6.83
GT/TB
10.50 lbs/hp
10.85
10.85
7.01
7.01
GT/TC
11.50 lbs/hp
11.10
11.10
7.16
7.16
GT/TD
12.50 lbs/hp
11.30
11.30
7.27
7.27
