1971 did bring about some changes. The 400's had less CR, and the 455HO came on the scene. And, since the 455HO was available in several different body styles, it was raced in all those body styles. Thru the years, there have been LOTS of 455HO powered Stockers. There are still several today.
Don't know which 455HO car won the 1st big race. But there are some that come to mind. Rock Running had a T-37, named "Super Sleeper".
Mick Leiferman had a '71 GTO. Don't know what all he won. But he is sorta famous for being RU at the US Nats for 3 years in a row. The pic I have shows the car in H/SA. I assume that is with a 400 engine.
But, a guy on the Class Racer forum said he thought it might be a D-port 455. Anyhow, on the front fender it says he was a nat record holder for 5 years in a row. Hey, 3 US Nats RU's in a row, along with 5 nat records in a row ain't too shabby.
The White bros had some good running Pontiacs. One was an E/SA 455HO T-37.
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