400 cu in Chevrolet specs

[Chuck Norton]

Originally Posted by Rick Shirey

Thanks Chuck and Jeff. Going by a old Motors manual that I have Chevrolet offered a 400 cu in small block in a 1970 Chevelle with a quadrajet with the highest hp rating that I have seen and I am assuming that is the engine being used by those runnuing a 400 sbc you see running in GT/C and GT/D. But yet I can't find that engine listed in NHRA's classification guide. I guess my next step would be to contact NHRA.

Rick,

The motor being used in Super Stock GT is the one from 1974-75. My friend, Tony Mandella, runs that combination in John Hennessay's GT/DA car. You never saw one in a real Super Stocker because the cars that it came in were too ugly to race. You can't count on Motor's or Chilton's to match up with anything in NHRA's books. Unfortunately, the horsepower rating on that motor has been blown through the roof by GT racers over the past ten years. It's still OK but it's not the killer it was at one time.

c