In 1974 was the Hemicuda convertible in NHRA SS/E or SS/D? I thought that I saw SS/E on the window of the Brooklyn Heavy and Steve Bagwell convertibles in pictures from 1974.

I'm thinking that car was ran in SS/EA at the Winternationals, it was rumored among us racers at that race that it was a later body converted to a 1971
I was under the impression that Mopar, Dodge and Plymouth didn't make any 1971 Hemi E body convertibles in 1971

E

Those rag top Cuda's were a bit heavy!

You would need the find and dated HP/WT/CLASS spreadsheet from NHRA to get the correct answer. You can always move up or down 1 class by playing with weight. Too may /EA class car at an event, you would just +/- weight. Too many of the same class cars would give you a greater chance to run same class cars which means "all out, whoever gets to the finish line first wins".

14 '71 Hemi Cuda Convertibles were built. I believe they've all been accounted for. 3 4spds, 11 Autos

Since the hardtop was D I assume the convertible was E. And yes Plymouth made 1971 Hemicuda convertibles.

They don't have to be real Hemi cars to run in Super Stock. The Brooklyn Heavy started out as a 383.

^^^ Exactly. It merely had to be a possible combo. In some cases, only on paper.
Class could be made/altered by adding weight - I think the limit was 100-150 lbs, depending on the year.
Also, during the 60s-70s, NHRA tended to move a Stock/SS car's class down after a year or two.

There used to be one at Havana a lot. It was /EA.

If I read it correctly, looks like a natural E car.

Where could I find this list that you refer to? Thanks.

A friend of mine dads car

I don't think NHRA allowed adding or subtracting weight to change classes in Stock or Super Stock until much later, maybe 1976 or later.
I remember NHRA used the "factory provided shipping weight" as the minimum weight for each car until they started adding the 170 Lbs. for the drivers weight to the shipping weight, shortly after that they added the ability to add or subtract weight to the cars to change classes

My 1971 Hemi Four Speed Challenger ran in SS/D in 1971 and 1972, then in MP in 1973 and Don Cloake had built a 1970 440-6 Cuda Convertible into a 1971 Hemi Cuda Convertible and it ran in SS/E in 1971 / 72 at the same time. Both the Challenger and the Cuda ran in NHRA. My Challenger is much lighter than the Cuda Convertible.
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C or D class is what my memory says....But here's a picture of one at our track.

More pics

NHRA classification guide. You have to look up the car (weight), rated HP over the engine and do the arithmetic - weight/HP = factor = class

All I have is current info,

I'm pretty sure that back in the '70s convertibles in NHRA Stock and Super Stock were classified as one class lower than the natural class for the hard top model of the same car. So if the hard top Hemi Cuda was a natural SS/D car (which I think it was), the convertible Hemi Cuda would have been a natural SS/E car. But as people have also said, in today's world you would need to check the classification guide to find the natural class for a Stock or Super Stock car and then you are allowed to move up or down one class.

Back in the day I never saw a SS/D or SS/DA Convertible E Body. All the ones I ran against were SS/E or SS/EA. My Challenger that is basically an ordered drag car is lighter than most 1970 and 1971 Challengers. It still has the modifications from 1972 in the car and it weights in at near 3400 lbs. The Body has no undercoating, sound deading all the extra stuff the factory puts on never got put on. I took the louvers and wing off for this weight but left the shaker and that is without the Jack and Spare Tire. I have a TA hood for the car that would lighten it up even more. I also have an aluminum case Hemi Four Speed that gets used now and then. I would think a convertible must weight around 200 or more lbs more that the advertised weight of an E Body Hardtop. There were quite a few Hemi E Body Convertibles that were raced. Can not remember what other cars were in that class.

The subject is Super Stock. Correct me if I am wrong - this car is a stocker.