Just a reminder that you won't be able to start new posts or reply to existings posts in the Archive forum.
This is where all the old posts go so they can still be used for reference and searched.
Welcome to ClassicBroncos! - You are currently viewing the forums as a GUEST. To take advantage of all the site features, please take a moment to register. It's fast, simple and absolutely free. So please join our community today!
If you have problems registering or can't log into your account, please contact Admin.
Not per the VIN (unless it was a pre-March '66 build in which you know it HAD to be a 6 cylinder). Otherwise a look at the data plate could tell you what the original engine was.
Which is why the so-called VIN decoder recently posted here is suspect. When you plug in a known F-code VIN it says that the Bronco came with a V-8. But F means a 6.