Classification Information:

All your calculations are done for the natural classification plus the one class up and one class down that the car is allowed to compete by adjusting the weight of the car.
The OEM shipping weight is shown in the header, plus the actual calculated car weight and race weight for each class are also displayed.
1/4 mile and 1/8 mile indexes for each of the noted classes are displayed.
Use the buttons at the bottom of the page to see the engine blueprint specs or to see classification options for this car in Super Stock GT classes.
If you have any idea for additional information here that can be helpful to class racers, please submit to Technical Submission.

1966 Chevrolet Chevy II 100 Sedan 2 Dr 6 with 275 HP 327 Cu In Engine

Shipping Weight: 2825 lbs Wheelbase: 110"

Stock Classes HPFactor: 274 Power/Weight Factor: 10.31

	Stock Classes	Class Min Wgt	Over/Under Shipping Wgt	Min Wgt w/Driver	1/4 Mile Man Index	1/4 Mile Auto Index	1/8 Mile Man Index	1/8 Mile Auto Index
Lightened Class	D/S and D/SA - 9.50 Lb/HP	2603	-222	2773	11.50	11.55	7.39	7.42
Natural Class	E/S and E/SA - 10.00 Lb/HP	2740	-85	2910	11.65	11.70	7.47	7.50
Weighted Class	F/S and F/SA - 10.50 Lb/HP	2877	52	3047	11.80	11.85	7.57	7.60

Stock Classes w/Replacement Heads HPFactor: 279 Power/Weight Factor: 10.31
RHS 12400 , 12402; Dart 10021070; World Prod 043600, 043610; Edelbrock 60887, 60947, 60637, 60617

	Stock Classes	Class Min Wgt	Over/Under Shipping Wgt	Min Wgt w/Driver	1/4 Mile Man Index	1/4 Mile Auto Index	1/8 Mile Man Index	1/8 Mile Auto Index
Lightened Classes	D/S and D/SA - 9.50 Lb/HP	2651	-175	2821	11.50	11.55	7.39	7.42
Natural Classes	E/S and E/SA - 10.00 Lb/HP	2790	-35	2960	11.65	11.70	7.47	7.50
Weighted Classes	F/S and F/SA - 10.50 Lb/HP	2930	105	3100	11.80	11.85	7.57	7.60

Super Stock Classes HPFactor: 299 Power/Weight Factor: 9.45

	Super Stock Classes	Class Min Wgt	Over/Under Shipping Wgt	Min Wgt w/Driver	1/4 Mile Man Index	1/4 Mile Auto Index	1/8 Mile Man Index	1/8 Mile Auto Index
Lightened Classes	SS/F and SS/FA - 8.50 Lb/HP	2542	-284	2712	10.35	10.45	6.71	6.77
Natural Classes	SS/G and SS/GA - 9.00 Lb/HP	2691	-134	2861	10.45	10.55	6.77	6.83
Weighted Classes	SS/H and SS/HA - 9.50 Lb/HP	2841	16	3011	10.50	10.60	6.80	6.86

S/S Classes w/Replacement Heads HPFactor: 304 Power/Weight Factor: 9.45
RHS 12400 , 12402; Dart 10021070; World Prod 043600, 043610; Edelbrock 60887, 60947, 60637, 60617

	Super Stock Classes	Class Min Wgt	Over/Under Shipping Wgt	Min Wgt w/Driver	1/4 Mile Man Index	1/4 Mile Auto Index	1/8 Mile Man Index	1/8 Mile Auto Index
Lightened Classes	SS/F and SS/FA - 8.50 Lb/HP	2584	-241	2754	10.35	10.45	6.71	6.77
Natural Classes	SS/G and SS/GA - 9.00 Lb/HP	2736	-89	2906	10.45	10.55	6.77	6.83
Weighted Classes	SS/H and SS/HA - 9.50 Lb/HP	2888	63	3058	10.50	10.60	6.80	6.86