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.

1969 Ford Shelby GT-500 Coupe 2 Dr with 355 HP 428 Cu In Engine

Shipping Weight: 3095 lbs Wheelbase: 0"

Stock Classes HPFactor: 375 Power/Weight Factor: 8.25

	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	AA/S and AA/SA - 7.50 Lb/HP	2813	-283	2983	10.70	10.70	6.91	6.91
Natural Class	A/S and A/SA - 8.00 Lb/HP	3000	-95	3170	10.95	11.00	7.06	7.10
Weighted Class	B/S and B/SA - 8.50 Lb/HP	3188	93	3358	11.20	11.25	7.21	7.24

Stock Classes w/Replacement Heads HPFactor: 383 Power/Weight Factor: 8.25
Ford F5WE-A or Edelbrock #60058 only in Stock. Edelbrock #60058 or #61857 in SS.

	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	AA/S and AA/SA - 7.50 Lb/HP	2873	-223	3043	10.70	10.70	6.91	6.91
Natural Classes	A/S and A/SA - 8.00 Lb/HP	3064	-31	3234	10.95	11.00	7.06	7.10
Weighted Classes	B/S and B/SA - 8.50 Lb/HP	3256	161	3426	11.20	11.25	7.21	7.24

Super Stock Classes HPFactor: 355 Power/Weight Factor: 8.72

	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/E and SS/EA - 8.00 Lb/HP	2840	-255	3010	10.25	10.35	6.65	6.71
Natural Classes	SS/F and SS/FA - 8.50 Lb/HP	3018	-78	3188	10.35	10.45	6.71	6.77
Weighted Classes	SS/G and SS/GA - 9.00 Lb/HP	3195	100	3365	10.45	10.55	6.77	6.83

S/S Classes w/Replacement Heads HPFactor: 369 Power/Weight Factor: 8.72
Ford F5WE-A or Edelbrock #60058 only in Stock. Edelbrock #60058 or #61857 in SS.

	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/E and SS/EA - 8.00 Lb/HP	2952	-143	3122	10.25	10.35	6.65	6.71
Natural Classes	SS/F and SS/FA - 8.50 Lb/HP	3137	42	3307	10.35	10.45	6.71	6.77
Weighted Classes	SS/G and SS/GA - 9.00 Lb/HP	3321	226	3491	10.45	10.55	6.77	6.83