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Horsepower Adjustments – From Competitor Requests

The NHRA Technical Department released Horsepower changes December 18, 2020 after review and evaluation of written requests from Lucas Oil Sportsman Series competitors. All changes are effective January 1, 2021. Only those requests received by November 17, 2020 were considered during this scheduled evaluation. Any requests received after November 17, 2020 will be reviewed during the next scheduled evaluation of 2021.

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 16, 2021 to be included in the next scheduled horsepower and index review.

 

Stock Horsepower Changes

Engine                     OEM           NHRA       New

Make           CID      HP             HP            HP            Years Affected

 

GM            350     160-170   275        271        1977 Malibu

 

Mopar        273     235          210        207        65-67 Valiant

 

Mopar        440     390          400        395        1969 Roadrunner

 

Ford          302     150          200        197        1986 Thunderbird

 

Ford           227     260         260         234       11-14 Mustang

 

Ford           302     230          220        217       1968 Mustang

 

Pont           421     405          385        360       1962 Catalina   

 

 

 

 

 

Stock Horsepower No Changes

 

                                        OEM       NHRA

 Make             CID          HP         HP             Years Affected

 

AMC              258            114        148            1977 Pacer

 

AMC              304            125        180            1979 Spirit

 

Chev             122            110        115            1975 Vega

 

Chev             196            105        112            1979 Monza

 

Chev             302            290        309            1969 Camaro

 

Chev             305            145        180            1978 Monza

 

GM                305            170        210            1992 Firebird

 

GM                305            210        241            1991 Camaro

 

GM                305            215        258            1985 Camaro

 

Chev             327            275        265            1968 Chevelle

 

Chev             327            275        270            1967 Camaro

 

Chev             327            350        293            1965 Chevelle

 

Chev             350            165        287            1976 Nova

 

Chev             350            175        283            1978 Malibu

 

Chev             350            185        279            1978 Corvette

 

Chev             350            195        293            1974 Corvette

 

Chev             350            255        263            1969 Kingswood

 

Chev             350            300        282            1970 Chevelle

 

Chev             350            300        296            1969 Camaro

 

Chev             396            325        325            1968 Camaro

 

Chev             396            350        340            1969 Camaro

 

Chev             396            375        412            1969 Camaro

 

Chev             402            210        315            1972 Chevrolet

 

Chev             402            375        400            1970 Camaro

 

Chev             402            375        415            1970 Nova

 

Chev             427            425        435            1969 Camaro

 

Chev             427            450        499            2015 COPO

 

Chev             454            450        430            1970 Chevelle

 

Mopar           273            180        159            1965 Valiant

 

Mopar           340            290        319            1970 Challenger

 

Mopar           360            175        284            1976 Volare

 

Mopar           360            185        289            1980 Volare

 

Mopar           360            230        276            1996 Dakota

 

Mopar           360            245        297            1974 Duster

 

Mopar           370            385        440            2010 Drag Pak

 

Mopar           383            270        235            1967 Belvedere

 

Mopar           426            415        403            1964 Belvedere

 

Mopar           426            425        430            1966 Belvedere

 

Mopar           426            425        430            1970 GTX

 

Mopar           426            425        435            1968 Roadrunner

 

Mopar           440            385        396            1971 Charger

 

Ford              281            225        204            1998 Mustang

 

Ford              302            380        380            11-14 Mustang

 

Ford              302            500        562            2013 Cobra Jet

 

Ford              351            275        330            1972 Mustang

 

Ford              351            330        355            1971 Mustang

 

Ford              390            320        327            1967 Mustang

 

Ford              390            320        327            1967 Fairlane

 

Olds              455            250        327            1972 442

 

Olds              455            365        350            1970 442

 

Pont              455            250        306            1974 Firebird

 

* = no such combination listed in the class guide.

  

Super Stock Horsepower Changes

 

                                     OEM      NHRA

Make                CID         HP          HP          HP             Years Affected

                                 

GM                 231       200       167       164         95-02 Firebird

 

Chev              396       375       400       395         1969 Camaro

 

Chev              350       350       342       337         13-15 GT RWD

 

Chev              454       215       346       336         1975 GT RWD

 

Ford               227        260      260        234         11-14 Mustang

 

Ford               302       155-200 240       220          1986 Capri

 

Ford               302       155-200 240       220          1986 GT

 

Ford               302       230       220       217         1968 GT RWD

 

Ford               351       266       276       272         73-74 GT RWD

 

Mopar            440       375       356       351         68-69 Dart

 

Super Stock Horsepower No Changes

 

                                    OEM      NHRA

Make             CID       HP        HP                       Years Affected

 

Chev              265       180       205                      1955 Belair

 

Chev              283       220       233                      1966 Chevy II

 

Chev              327       300       295                      1968 Corvette

 

Chev              327       300       281                      66-67 GT RWD

 

Chev              350       530       597                      2014 COPO

 

Chev              427       450       461                      2015 COPO

 

Chev              327       250       250                      1962 GT RWD

 

Chev              327       250       270                      1965 GT FWD

 

GM                 346       305       313                      1999 GT FWD

 

Chev              350       255       294                      1969 GT FWD

 

Chev              350       255       299                      1969 GT FWD

 

Chev              400       175       311                      1976 GT RWD

 

Chev              402       300       308                      1971 GT RWD

 

Mopar            318       155       232                      1980 Aspen

 

Mopar            340       275       268                      1971 Duster

 

Mopar            340       275       276                      1971 Duster

 

Mopar            426       425       453                      1971 Cuda

 

Mopar            426       425       500                      1965 Coronet

 

Mopar            340       240       258                      1972 GT FWD

 

Mopar            400       210       290                      1976 GT RWD

 

Mopar            360       48         440                      1970 Challenger*

 

Ford               289       225       209                      1965 Mustang

 

Ford               427       410       410                      1967 Fairlane

 

Ford               427       415       425                      1967 Fairlane

 

Ford               289       210       200                      1964 GT RWD

 

Ford               302       230       230                      1968 GT RWD

 

Olds               455       350       312                      1971 442

 

Pont               428       390       312                      1968 GT

 

 

Super Stock Index No Changes

Class

 

SS/CM

 

* = no such combination listed in the class guide.








RM