410 Class
​Racing Rules at All GASS Events
1. Stockcar Body:
     a. Late model, full-size stock car bodies only. 
     b. Fiberglass only (i.e., Five Star).
     c. No wings: 8" Max Spoiler Height.
2. Chassis:
​     a. Must meet SCCA construction and material                           standards.
     b. 2850 lbs Minimum Weight, Race ready with Driver.
     c. Cars will be weighed prior to entering starting grid.
3. Suspension:
     a. ProShock suspension components.
     b. Front 7" Part #5, 004-AC750B, Rear 7" #4, 004-                     AC740B.
     c. Cast iron brake rotors. Maximum 6 piston calipers. 
4. Engine:
     a. V8 pushrod engine configuration.
     b. Naturally aspirated gas powered single carburetor.
     c. Maximum 410 horsepower at rear wheels.
     d. Maximum 410 ft lb measured at rear wheels.
     e. Horsepower certification established on GASS                       approved track Dyno. 
5. Transmission:
     a. 4-Speed Manual.
6. Tires and Wheels:
     a. Bias Ply tires: 15" x 10" steel wheels.
          10" wide labeled max. 
7. Technical Requirements:
     a. Stockcar must meet SCCA or NASA tech                                   requirements. Must have current logbook.
8. Protests: $200 protest fee due at time of protest.
     a. Protests will be made by the GASS board or                             competitor in the 410 class only.
     b. 410 protesters can do so anonymously through                     GASS board.  
     c. Protested car will be impounded and Dyno tested
          at Track Dyno. If protest is upheld, car owner will pay               $200 for protest.
9. Protest Dyno Rules: 
     a.Over 410 HP or 410 torque will constitute the 410 car            being scored in Open Competition Class and the                  protested car will pay the $200 protest fee. 
     c. Reject Protest: lose points
     d. Must re-certify on Dyno to race in 410 class.
     c. If you lose points you must be scored in Open Class.
10. Rule Interpretation: All decisions made by GASS are              final. 

Open Competition Class
Racing Rules at All GASS Events
1. Stockcar Body:
     a. Late model, full-size stock car bodies only. 
     b. Fiberglass only (i.e., Five Star).
     c. No wings: 8" Max Spoiler Height.
2. Chassis:
​     a. Must meet SCCA construction and material                           standards.
     b. 2850 lbs Minimum Weight, Race ready with Driver.
     c. Cars will be weighed prior to starting grid. 
3. Suspension:
     a. Cast iron brake rotors. Maximum 6 calipers.
4. Engine: 
     a. V8 pushrod engine configuration. 
     b. Naturally aspirated gas powered. 
5. Transmission:
     a. 4-speed manual.
6. Tires and Wheels:
     a. Bias Ply tires: 15" x 10" steel wheels.
          10" wide labeled max. ​
7. Technical Requirements:
     a. Stockcar must meet SCCA or NASA car tech                           requirements. 
8. Rule Interpretation: All decisions made by GASS are              final. 

ALL 410 Cars need to be DYNO tested prior to race day.
​Any HP or Torque over 410 will have 5lbs added per HP/TQ to whichever component is higher. ​