Jan. 27, 2025

The NHRA Technical Department recently made changes to the Class Guide.

GM 305 150-190/259 change to 305 150-190/250 83-87 G platform SS

GM 305 150-190/264 change to 305 150-190/255 83-87 G platform SS

GM 305 150-190/275 change to 305 150-190/259 83-87 GT

GM 305 150-190/280 change to 305 150-190/264 83-87 GT

GM 305 165-175/230 change to 305 165-175/220 1983 Camaro Stock

GM 307 130/171 change to 307 130/160 1972 Nova Stock

GM 307 200/165 change to 307 200/260 1971 Nova Stock

Chev 327 300/280 change to 327 300/270 64-65 Chevelle SS

Chev 327 300/285 change to 327 300/275 64-65 Chevelle SS

Chev 376 385/410 change to 376 385/400 19-24 Camaro

Mopar 340 240/285 change to 340 240/281 1973 Dart Stock

Mopar 340 240/290 change to 340 240/286 1973 Dart Stock

Mopar 360 175-195/289 change to 360 175-195/284 78-80 Aspen Stock

Mopar 360 175-195/294 change to 360 175-195/289 78-80 Aspen Stock