Yep LOTS of similarities between the 2 engines. Once I get home in the am I'll chk the union for numbers.
While we are at it, I plan on bolting external 273 stuff to a 340, would there be any reason why the ps pump won't work on 340?
No idea, for 30+ years I have been trying to figure that out.
Everything is the same,
Pump, pulley, brackets, belt, steering gear, fittings, exhaust manifold....
