The NHRA Technical Department released Horsepower changes December 16, 2011 after review and evaluation of written requests from Lucas Oil Sportsman Series competitors. All changes are effective January 1, 2012. Only those requests received by November 14, 2011 were considered during this scheduled evaluation. Any requests received after November 14, 2011 will be reviewed during the next scheduled evaluation of 2012.
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, AHFS@nhra.com or bbachelder@nhra.com. Requests for reviews must be received no later than May 31, 2012 to be included in the next scheduled horsepower and index review.
Stock Horsepower Changes
OEM NHRA New
Make CID HP HP HP Years Affected
Chec 283 220 226 223 64-65 Chevelle stick
Chev 350 295 290 286 67-68 Camaro, Nova
Chev 396 325 325 320 66-69 Chevelle
Chev 396 425 380 375 1965 Corvette
Mopar 273 180 165 162 64-67 B-body
Ford 289 225 210 207 65-66 Must, Comet, Fairlane
Ford 351 248 315 311 1972 Gran Torino
Olds 305 150 238 235 1984 Cutlass
Olds 307 138 213 210 86-90 Cutlass
Stock Horsepower No Changes
OEM NHRA
Make CID HP HP Years Affected
AMC ??? 340 315 incomplete request
Buick 231 105 130 75-78 Skyhawk
Buick 350 260 264 incomplete request
Buick 252 125 173 incomplete request
Chev ??? 300 173 incomplete request
Chev 173 110/115 135 1980 Citation
Chev 229 110/115 152 1980 El Camino
Chev 265 180 205 1955 Chevrolet
Chev 327 275 274 66-68 Nova
Chev 327 250 245 68 Chevelle
Chev 350 160/185 274 incomplete request
Chev LT1 ??? ??? incomplete request
Chev 402 375 395 1970 Camaro
Chev 427 400 ??? incomplete request
Mopar 318 ??? 185 incomplete request
Mopar 340 275 ??? incomplete request
Mopar 426 425 440 70-71 E body
Mopar 426 415 415 1963 Mopar
Mopar 440 390 417 70-71 B body
Mopar 440 375 350 1967 B body auto
Mopar 440 375 350 1967 B body stick
Mopar 440 ??? 350 68-71 Barracuda
Ford 302 230 235 68-69 Mustang
Ford 302 ??? 215 incomplete request
Ford 390 315 315 1968 Galaxie
Ford 428 335 380 68-70 Mustang
Olds 455 380-390 362 68-69 Hurst
Olds 455 365 355 1970 442
Super Stock Horsepower Changes
OEM NHRA New
Make CID HP HP HP Years Affected
Chev 283 220 241 237 64-66 Nova stick
Chev 402 300 335 330 SS/GT only
Mopar 340 275 283 279 1971 B body
Mopar 440 375 361 356 68-69 Dart
Ford 289 210 213 210 1964 Mustang
Super Stock Horsepower No Changes
OEM NHRA
Make CID HP HP Years Affected
AMC 390 ??? ??? incomplete request
Buick 350 260 264 incomplete request
Buick 252 125 173 incomplete request
Chev 283 220 227 64-66 Chevelle
Chev 283 ??? 236 incomplete request
Chev 327 250 250 1968 Chevelle
Chev 327 275 307 66-68 Nova
Chev 327 275 299 66-68 Nova
Chev 350 ??? ??? 1969 Camaro
Chev LT1 ??? ??? incomplete request
Chev 454 425 424 SS/GT only
Chev 427 400 ??? incomplete request
Mopar 488 400 425 93-98 Viper
Ford 289 225 215 1965 Mustang
Ford 302 ??? 215 incomplete request
Pont 346 350 340 2004 GTO
