[Alan Roehrich]

NHRA thinks that it is the radiator that weighs a lot. The water weighs more. The difference between a copper/brass replacement and an all aluminum replacement is not that great.

With the run on ammunition by the public, as well as the massive orders placed by the government, copper/brass radiators keep getting higher. Aluminum is a much more cost effective replacement. They should just specify that postage stamp radiators with plastic tanks are not legal on cars that did not have plastic tanks from the OE.

Honestly, if they allowed the all aluminum radiators with 1-1/2" tubes, they'd save people who needed a radiator money, and make it easier on people trying to make it back to the lanes in the late rounds.