The NHRA Technical Department released Horsepower changes July 9, 2013 after review and evaluation of written requests from Lucas Oil Sportsman Series competitors. All changes are effective July 9, 2013. Only those requests received by May 31, 2013 were considered during this scheduled evaluation. Any requests received after May 31, 2013 will be reviewed during the next scheduled evaluation of 2013.
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 sent in writing to: National Hot Rod Association; Technical Department;
Attn: AHFS; P.O. Box 5555, Glendora, CA 91740; or e-mail, http://www.nhraracer.com/ahfs.asp. Requests for reviews must be received no later than November 12, 2013 to be included in the next scheduled horsepower and index review.
Stock Horsepower Changes
OEM NHRA New
Make CID HP HP HP Years Affected
AMC 360 290 280 276 1970 AMX
Chev 350 245 310 306 73-74 Camaro
Chev 350 145-250 230 227 69-75 Camaro
Chev 350 300 290 286 1970 Camaro
Mopar 318 230 185 182 67-68 Belvedere
Mopar 426 415 415 409 1963 Savoy
Mopar 426 400 440 434 64-65 Belvedere
Mopar 426 425 425 415 1964 Fury
Mopar 440 390 404 398 1970 GTX
Mopar 440 385 404 398 1971 Charger
Mopar 440 390 410 400 1970 Cuda
Mopar 440 370-375 355 350 68-71 Dart
Mopar 440 390 395 390 1969 Roadrunner
Stock Horsepower No Changes
OEM NHRA
Make CID HP HP Years Affected
Chev 265 180 205 1955 Belair
Chev 302 209 309 1969 Camaro
Chev 305 175-190 248 83-87 Malibu
Chev 305 145-180 230 80-83 Malibu
Chev 350 370 400 1969 Corvette
Chev 350 160-190 283 78-81 Camaro
Chev 350 255 275 1969 Kingswood
Chev 396 375 400 68-69 Camaro
Chev 402 240-300 315 71-72 Chevelle
Chev 402 375 400 1970 Camaro
Chev 427 430 445 1969 Camaro
Chev 454 425 390 1971 Chevelle
Chev 454 365 360 1972 Corvette
Chev 454 425 420 1971 Chevelle
Mopar 318 230 182 1973 Dart
Mopar 340 275 299 1972 Cuda
Mopar 360 230-250 276 96-03 Dakota
Mopar 360 170-200 284 74-78 Volare
Mopar 360 220-245 305 74-76 Challenger
Mopar 392 396 426 2010 Drag Pak
Mopar 400 240 298 1973 Roadrunner
Mopar 426 415 415 1964 Belvedere
Mopar 440 370-375 350 68-71 Barracuda
Mopar 440 385 422 1971 Charger
Ford 140 175 220 1985 Mustang
Ford 289 225 205 1967 Mustang
Ford 351 300 300 1995 Mustang
Ford 390 325 325 1968 Fairlane
Olds 138 115 115 1994 Achieva
Olds 305 155 235 1984 Cutlass
Pont 252 125 170 1982 Bonniville
Pont 350 170-200 277 1974 Ventura
Pont 400 220 290 1978 Firebird
Pont 455 250 310 1973 Firebird
Pont 455 290 345 73-74 Firebird
Super Stock Horsepower Changes
OEM NHRA NEW
Make CID HP HP HP Years Affected
Chev 283 220 232 229 65-66 Belair
Chev 350 255 297 293 1969 Camaro
Chev 402 300 320 316 1971 Camaro
Mopar 340 240 266 262 72-73 Demon
Mopar 440 390 385 380 1969 SuperBee
Ford 289 225 230 227 1995 SS/GT
Super Stock Horsepower No Changes
OEM NHRA
Make CID HP HP Years Affected
Chev 265 180 200 1955 150
Chev 283 220 236 63-66 Nova
Chev 327 275 307 66-68 Nova
Chev 350 395 317 67-69 Camaro
Chev 350 300 315 1969 Camaro
Chev 350 275-285 279 93-98 GM
Chev 427 390 390 1967 Corvette
Chev 427 400 419 1967 Corvette
Chev 454 425 469 1971 Corvette
Chev 327 250 265 1968 SS/GT
Chev 327 250 262 63-64 SS/GT
Chev 376 400 400 2010 SS/GT
Chev 400 175-180 324 74-76 SS/GT
Mopar 340 240-275 279 71-73 Dart
Mopar 360 160-245 269 74-80 Dart
Ford 281 235 229 2010 Cobra Jet
Ford 289 210 220 1964 Comet
Ford 302 143 210 1971 Mavrick
Olds 307 138 220 86-90 SS/GT
Pont 231 200 195 95-02 Firebird
Pont 346 320-325 324 99-02 Firebird
