NHRA Tech Department makes corrections to the Stock Car Classification Guide

June. 26, 2019

The NHRA Technical Department recently made changes to the Class Guide, due to clerical errors as follows.

Engine OEM NHRA

Make CID HP HP New HP Years Affected Transmission

Dodge 426 425 455 450 1968 M/T & A/T

Ply 426 425 455 450 1968 M/T & A/T

Dodge 426 425 465 460 1968 M/T & A/T

Ply 426 425 465 460 1968 M/T & A/T

Chev 400 180 319 314 1974 GT FWD A/T

Chev 400 180 329 319 1974 GT FWD A/T

Chev 400 180 315 306 1974 GT RWD A/T

Chev 400 180 320 311 1974 GT RWD A/T

Chev 400 175 319 319 1975 GT FWD A/T

Chev 400 175 329 324 1975 GT FWD A/T

Chev 400 175 311 311 1975 GT RWD A/T

Chev 400 175 320 316 1975 GT RWD A/T

Chev 400 175 319 319 1976 GT FWD A/T

Chev 400 175 329 324 1976 GT FWD A/T

Chev 400 175 311 311 1976 GT RWD A/T

Chev 400 175 320 316 1976 GT RWD A/T