Waterpump (Bouchillon 4253), 5 1/2" diameter, 1 13/16 " depth (outside to center of V)
Crankshaft (Bouchillon 4254), 6 5/8" diameter, 1 13/16" depth
Material thickness approx 1/16"

Those are claimed to be correct reproductions, don´t have any original ones.

Website with some more info: https://www.bouchillonperformance.com/inc/sdetail/918/6944