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Show & Go / Muscle Car Shootout
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Stock Classification Guide
Note: All classes are calculated by dividing the shipping weight plus 170 lbs (for the driver) by the rated horsepower.
A – 6.50 to 6.99 |
L – 12.00 to 12.49 |
X - 17.50 to 17.99 |
B – 7.00 to 7.49 |
M - 12.50 to 12.99 |
Y – 18.00 to 18.49 |
C – 7.50 to 7.99 |
N– 13.00 to 13.49 |
Z – 18.50 and up |
D – 8.00 to 8.49 |
O – 13.50 to 13.99 |
A/ F – 15.00 to 15.99 |
E – 8.50 to 8.99 |
P – 14.00 to 14.49 |
B/ F – 16.00 to 16.99 |
F – 9.00 to 9.49 |
Q – 14.50 to 14.99 |
C/F – 17.00 to 17.99 |
G – 9.50 to 9.99 |
R– 15.00 to 15.49 |
D/F – 18.00 to 18.99 |
H – 10.00 to 10.49 |
S – 15.50 to 15.99 |
E/ F – 19.00 to 19.99 |
I – 10.50 to 10.99 |
T – 16.00 to 16.49 |
F/ F – 20.00 to 23.49 |
J – 11.00 to 11.49 |
U – 16.50 to 16.99 |
G /F – 23.50 to 27.49 |
K - 11.50 to 11.99 |
V – 17.00 to 17.49 |
H/ F – 27.50 and up |
Class Y restricted to 4- and 6- cylinder cars only.
Class Z restricted to 4- cylinder cars only
Class A/F thru H/F restricted to 4 and 6 cylinder front wheel drive cars only.