Question about core???


Aug 19, 2011
I've been in love with streams since I was a kid and looked forward to the January boat show every year in Minnesota to see the beautiful glittering hydrostreams with the Merc 150's bolted to the back. I've owned a Volero YT hull in the past, but just purchased a Vector with a 150 Merc for $1500. I have a question about the core on this boat. The transom is in great condition and the core appears to be intact, but it seems odd to me that the core is hollow. The previous owner had replaced a portion of the floor, so the first thing I did after purchase was to pull the floor. What I found was a fiberglass core that is hollow and am wondering if that is how it's supposed to be. I've attached pics. Can anyone help?

Thanks in advance!