I don't know how much benefit you'd get from a deep pan in a 24-hour race. The fluid will come up to temp slower because there's more of it, which would help for the first hour or so. But adding a big enough cooler also increases fluid capacity and will throw off a lot more heat than a finned pan.

1988 CVLX Formal Roof (Love Boat) POTM July 2019 & Aug 2020, 56K
E-code lights w/ relays, LEDs w/ switchbacks, 15x8 Ansen slots w/ 255/60 BFG's, Kenwood stereo, various hacks.