Per the Vans page - The HINGE PIANO typically uses the SSP-120 pin. This hinge also uses the undersize SSP-090 pin for the radius around the top of the firewall/cowling interface.
Does that mean I should replace the top curved ones with SSP-090s? Using the stock part I'm assuming it has the SSP-120s in it, but not against ordering and putting some SSP-090s in if there's a reason.