As we approach the 60^th annual Chevrolet Performance U.S. Nationals, the NHRA Technical Department wanted to take a moment to remind all competitors of the rules for the Factory Stock Showdown.  Below you will see the rules for each of the two classes: FS/A and FS/B.  In addition to these rules, the cars must also meet all requirements as outlined in the 2014 NHRA Rulebook.  If you have any additional questions, please feel free to contact the NHRA Technical Department at TechDL@nhra.com.

FS/A:

·         Index: 10.10

·         Supercharged entries only

o   Cars with a 2.3L Eaton supercharger must weigh a minimum of 3,400 lbs.

o   Cars with a 2.9L Whipple supercharger must weigh a minimum of 3,550 lbs.

FS/B:

·         Index: 10.35

·         Naturally Aspirated entries only

o   Entries up to 400 CID must weigh a minimum of 3,250 lbs.

o   Entries up to 430 CID must weigh a minimum of 3,350 lbs.

o   2011 Dodge V10 entries must weigh a minimum of 3,500 lbs.