Horsepower Adjustments – From Competitor Requests

The NHRA Technical Department released Horsepower changes December 20, 2019 after review and evaluation of written requests from Lucas Oil Sportsman Series competitors. All changes are effective January 1, 2020. Only those requests received by November 19, 2019 were considered during this scheduled evaluation. Any requests received after November 19, 2019 will be reviewed during the next scheduled evaluation of 2020.

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 17, 2020 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

AMC          258     114         150        148        1977 Pacer

Buick         231     105         127        125        1978 Skyhawk

Chev         327     250         245        241        1968 Chevelle

Chev         350     175         287        283        1978 Malibu

Chev         350     175-185   275        271        1978 Camaro AT

Chev         350     270         278        274        1971 Camaro

Chev         396     350         335        330        1968 Camaro AT

Chev         409     409         370        365        1962 Biscayne

Chev         427     425         435        429        1969 Chevelle

Chev         454     425         414        408        1971 Chevelle MT

Mopar        225     110         144        142        1980 Diplomat

Mopar        340     290         312        308        1970 Cuda

Mopar        340     240         281        277        72-73 Roadrunner

Mopar        360     245         305        301        1974 Dart

Mopar        426     400         434        428        64-65 440

Mopar        426     400         445        439        1964 Savoy

Mopar        426     425         425        419        1963 Savoy

Mopar        425     425         434        424        70-71 Challenger

Mopar        426     425         456        450        1964 Belvedere

Mopar        440     385         402        396        1971 Charger

Mopar        440     390         382        377        1970 Cuda

Ford          140     92           109        107        1976 Pinto

Ford          140     145         168        165        1983 Mustang

Ford          281     225         207        204        96-98 Mustang

Ford          302     225         220        217        1992 Mustang

Ford          302     230         223        220        1968 Mustang

Ford          427     410         410        404        66-67 Fairlane MT

Ford          427     410         410        404        66-67 Fairlane AT

Ford          429     370         345        340        1971 Cougar

Olds          400     350         340        335        1967 442

Olds          455     390         351        346        1968 Hurst

Pont          400     330