At the risk of this being a redundant thread (and if so, could a moderator or administrator merge it), there's no dedicated race weekend thread for the 6 Hours of Spa.
Here's the WEC's main hub for this weekend's race on their site:
https://www.fiawec.com/en/race/show/4602
Under the "practical info" tab there's the full entry list, time table and other such info.
Of course, probably the biggest story/question for this weekend is will the privateer LMP1 teams have anything for Toyota given that finally the privateers don't have to (in theory at least) engage in "lift and coast" as they've been given unlimited fuel allotments per lap this weekend. Also, almost every LMP1 team will be debuting or reverting to Le Mans spec areo this weekend to test for LM.
Also in LMP1, Kolles will debut the Gibson V8 powered incarnation of their car this weekend after having to sit out Sebring due to the engine change over.