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NHRA Tech Department makes updates to the Stock Car Classification Guide

March 17, 2020


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


Chev 1978 Nova 350 added manual trans

Ford 1970 351 300/260 change to 351 300/310 GT

Ford 1964 427 425 added replacement head C4AE-P STK