Dally remembered a lot of things. Didn't seem like the guy who would remember things, tuck them away into his head, and then think about them as laying in bed.
He remembered what he was feeling when he heard Mr. and Mrs. Curtis were dead. Remembered going to their house, not saying anything but just offering his support. Remembered what the Curtis brothers were doing, what Steve and Two-Bit and Johnny were doing too.
He remembered when they found Johnny after he got beat up. Remembered the rage he felt.
Dally didn't seem like it, but he remembered a lot of things.