The NHRA Technical Department released Horsepower changes December 16, 2024 after review and evaluation of written requests from Lucas Oil Sportsman Series competitors. All changes are effective January 1, 2025. Only those requests received by November 19, 2024 were considered during this scheduled evaluation. Any requests received after November 19, 2024 will be reviewed during the next scheduled evaluation of 2025. 
Letter review is part of NHRA's commitment to evaluating input from the Sportsman racing community and is an important element of NHRA's Automatic Horsepower Factoring System.  “No Change” combinations are listed so that competitors may see that requests were reviewed by the Technical Department, even though the request resulted in no change.
         Requests for horsepower changes or reviews can be made here www.nhraracer.com/ahfs.asp.  Requests for reviews must be received no later than November 18, 2025 to be included in the next scheduled horsepower and index review.
 
12/16/2024
Stock Horsepower Changes
Note: See class guide for specific details
 
Engine                  OEM         NHRA      New
Make          CID     HP            HP          HP          Years Affected
 
Chev           265     205           205         202         1956 Full Size
 
Chev           327     325           300         292         1968                  Nova
 
Chev           327     325           300         292         1968                  Chevelle
 
Chev           327     325           325         292         1968                  Corvette
 
Ford           302     380           380         375         11-14 Mustang
 
GM             138     115           100         95           92-94 Achieva
                                                                                    Grand Am
 
 
12/16/2024
Stock Horsepower No Changes
 
                                        OEM       NHRA
 
Make             CID           HP          HP             Years Affected
 
Chev              427             430         445            1969 Camaro M/T
 
Chev              327            300        265               1965 Nova 
 
Chev              402            300        311               1971 Chevelle
 
Chev             454            425        430               1971 Chevelle
 
Mopar           273            180        159               1965                  Valiant
 
 
 
 
 
12/16/2024
Super Stock Horsepower Changes
Note: See class guide for specific details
 
                                    OEM       NHRA     New
 
Make              CID        HP         HP         HP                       Years Affected
                                    
Chev              265        205        200        197      1956 Full Size man
 
Chev             364         361        361        356                       2008 GT/RWD
 
Ford              302         350        335        330                       2014 Cobra Jet
 
Ford                281        235        232        229                       2010 GT/RWD
 
Ford                302        325        281        277                       2012 GT/RWD
 
12/16/2024
Super Stock Horsepower No Changes
 
                                    OEM      NHRA
 
Make              CID       HP         HP                       Years Affected
 
 
Dodge             318        155        225                       1980 Aspen
 
Chev               396        375        391                        68-69 Nova
 
Chev               376        365        365                               2015 GT/RWD 
 
Dodge             426        450        450                        09-10 GT/RWD