Here is the thread that I pulled the CB chassis information from: http://cb7tuner.com/vbb/showthread.php?t=46761

Here is the detail if you do not want to open the thread:

CB1/CB2 = 1.8 liter models EF / EX / EXL / EXL 4WS
Engine = F18A

CB3 = 2.0 liter models EX / 2.0EXL / 2.0EXL-i / 2.0Si / 2.0Si-T Engine = F20A

CB4 = 2.0EXL / 2.0EXL 4WS / 2.0EXLi 4WS / 2.0Si 4WS
Engine F20A

CB5 = Accord Inspire (Hybrid of Accord/Vigor doesn't share outside body characteristics of the US-Vigor but shares the 5cylinder engine)

CB7 = USDM Accords

CB8 = Eurodeck

CB9 = Wagons