2019 NHRA Factory Stock Showdown Rules

NHRA Announces 2019 SamTech.edu NHRA Factory Stock Showdown Rules and Procedures

Initial Release: 2/1/2019

2nd Release: 3/7/2019: Changed 2019 Mustang Cobra Jet 327 horsepower from 595HP to 610HP, Added Points and Related Programs Section

3rd Release: 3/20/2019: Changed upper supercharger pulley sizes on 2019 COPO 350 and 2019 Cobra Jet 327 combinations.

4th Release: 5/1/2019: Changed supercharger overdrive on both the 2019 COPO 350 and the 2019 Cobra Jet 327. Added maximum weight on all combinations.

At the eight SAMTech.edu NHRA Factory Stock Showdown events to be held in 2019, competitors will qualify and compete in their own separate eliminator from Stock. Those not qualifying will not be permitted to run in the Stock eliminator as in past years.

The SAMTech.edu NHRA Factory Stock Showdown qualifiers will be competing for the NHRA Wally trophy, event champion’s jacket and an event purse. Factory Showdown qualifiers will not receive Lucas Oil Stock Eliminator national championship points.

Peter Gasko Camaro Factory Stock Showdown

 Additional Showdown Rules are listed below:

  • Designation: FS/XX
  • .5 Pro Tree
  • Minimum weight for all pre-2019 Chevrolet COPO and Ford Cobra Jet combinations 3,525 lbs. except for all Ford Cobra Jet combinations with 2.3L Eaton superchargers 3,275 lbs.
  • Minimum weight for the 2015 Drag Pak combination 3,575 lbs.
  • Minimum weight for all 2019 Chevrolet COPO, and Ford Cobra Jet combinations 3,575 lbs.
  • Note: NHRA may make adjustments to (minimum weights, supercharger pulley ratios, etc.) at any time to control performance and maintain parity within the category.
  • Permitted Combinations:

Reserved for 2008 and newer Chevrolet COPO, Dodge Drag Pak, and Ford Cobra Jet with the following factory production engine of the same make. Year of engine optional. Only those engines and/or bodies listed are eligible for the Factory Stock Showdown.

Chris Holbrook Cobra Jet Mustang Factory Stock Showdown

2014-2015 Camaro COPO 350

  •  530 HP Supercharged 2.9L Whipple

 2016-2018 Camaro COPO 350

  • 580 HP Supercharged 2.9L Whipple

2017-2018 Camaro COPO 350

  •  590 HP Supercharged 2.9L Whipple

2019 Camaro COPO 350

·         630 HP Supercharged 2.65L Magnuson

2015 Challenger Drag Pak 354

  • 530 HP Supercharged 2.9L Whipple
  • 540 HP Supercharged 2.9L Whipple

2008 Mustang Cobra Jet 330

  •  425 HP Supercharged 2.3L Eaton

 2010 Mustang Cobra Jet 330

  • 435 HP Supercharged 2.3L Eaton
  • 500 HP Supercharged 2.9L Whipple

2012 Mustang Cobra Jet 330

  • 450 HP Supercharged 2.3L Eaton
  • 510 HP Supercharged 2.9L Whipple 

2013 Mustang Cobra Jet 302

  • 500 HP Supercharged 2.9L Whipple 

2014 Mustang Cobra Jet 302

  • 525 HP Supercharged 2.9L Whipple 
  • 560 HP Supercharged 2.9L Whipple 

2016 Mustang Cobra Jet 302

  • 565 HP Supercharged 2.9L Whipple
  • 575 HP Supercharged 2.9L Whipple 

2019 Mustang Cobra Jet 327

·         595 HP Supercharged 3.0L Whipple

2019 Mustang Cobra Jet 351

·         570 HP Supercharged 2.9L Whipple

Note: All other Stock Rules as found in the latest version of the NHRA Rulebook and NHRA Rulebook Amendments apply.

2019 SAMTech.edu NHRA Factory Stock Showdown Schedule

March 14-17 Amalie Motor Oil NHRA Gatornationals, Gainesville, Fla.
April 26-28 NGK Spark Plugs NHRA Four-Wide Nationals, Charlotte, N.C.
May 17-19 Virginia NHRA Nationals, Richmond, Va.
June 7-9 Menards NHRA Heartland Nationals, Topeka, Kan.
June 20-23 Summit Racing Equipment NHRA Nationals, Norwalk, Ohio
Aug. 28-Sept. 2 Chevrolet Performance U.S. Nationals, Indianapolis
Sept. 27-29 AAA Insurance NHRA Midwest Nationals, St. Louis
Oct. 17-20 AAA Texas NHRA Fall Nationals, Dallas

For more NHRA sportsman racing news, click here.

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