How much weight gain from adding a Dana and roll cage.

A Strange S-60 isn't as heavy as a car or truck Dana, and as mentioned spools save some weight too. There are a lot of places that weight can easily be removed. My Dart is 3292 with me in it race ready, R1 block, 727 and Strange S-60. Glass bolt on hood and front bumper, full interior with all factory glass, it does have Kirkey seats, the radio, heater box and controls and vent boxes and carpet are still in the car too. It has a six point roll bar and frame connectors.

The roll bar, Dana, mini tubs and inboard springs were all done at the same time. The car ran the same numbers as it did before. People focus on the weight of the Dana but forget that it's where you need it.