NHRA Makes Corrections to the Stock Car Classification Guide

As posted on NHRAracer.com –

NHRA Tech Department makes corrections to the Stock Car Classification Guide

Aug. 6, 2018

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

Chev 402 375 separated iron Vs. aluminum heads 1970

Chev 454 450 separated iron Vs. aluminum heads 1970