I'm not looking to hyjack your thread mbroadbridge, but I've got a similar question I've wondered about but didn't feel it warranted a thread.
My 67 had a 289 and a fender badge. The 289 was not rebuildable, so a 302 was put in. Are there any opinions as to whether a 289 badge or 302 badge are 'more' correct? The truck is a Frankenstein, so I don't know why this item bugs me. I feel the 302 is correct, but wrong on a 67. It currently has neither.
Again, apologies.
This one is easy. The answer is "289." The 289 emblem is a C3OZ-16228-B. It belongs on your 67 Bronco. The 302 emblem is a C8OZ-16228-B. It belongs on a 1969-1971 Bronco. The incorrect emblem does not belong on the Bronco.
Nobody cares if you put the wrong crankshaft in your 289 and made it a 302. Nobody cares if you bored your 289 oversized by .030 and made it displace 293 cubic inches. Nobody cares if you bored your 302 and made it displace 306 cubes. Nobody cares that your 5.0 displaces 4.9 Liters. Nobody calls a 350 chevy a 355 when it gets bored. And a 350 Chevy does not magically become a 351 when the cylinder taper gets to +.004, even though it now displaces 351 cubic inches. There is no such thing as a 306 Ford. There is no such thing as a 331. No such thing as a small block 427. Nope. You don't own the name. Engine families and displacements are registered with the EPA for emissions, safety, and compliance requirements. Stop denying science.
Engines have names. Names are used to describe features and attributes so that people can identify them. Your Bronco proudly displaces it's engine FAMILY with the 289 emblem. It declares with authority that it is not a puny, low life 6 cylinder. It IDENTIFIES as a superior, N-code, from the factory V8. Loud an proud. It has been endowed by it's creator. This identity is assigned at birth. Regardless of the addition of "hardware." Stop enabling identity dysphoria.
By 1972, the Bronco became gentrified...and lost it's ability to self-identify. It was forced underground and had to hide it's displacement preference on a federally mandated sticker under the hood. Those were dark times. Next would be the chopping off of the third pedal. This trend was FINALLY remedied in 2021 with the ecoboost badge! Now available in your Badlands with a whopping 138 Cubic Inches!!!