can’t tell you for e sure what you have, but can tell you what you don’t have.
Not a P-30 leg. P-30 doesn’t have any water exit fittings on the tower, it all goes out the lower unit.
That leg looks like it would be for a motor with a mechanical water pump, and the P-series motors used the pressure-suction cooling system.
Does look like a P-30 transom bracket. The "P8" and "P9" casting ID’s on the tilt quadrants match up with my P-30.
Dunno if these pixels will help, but here they are anyway
Hope this helps.
Best,
PM T2
He's livin' in his own private Idaho..... I hope to go out quietly in my sleep, like my grand-dad did..... and not screaming, like the passengers in his car...