F100Ranger - First, welcome to Stovebolt.
I'll 2nd Craig's request that you post some pictures of your engine so we can help you ID it. Specifically the detailed shots Jerry mentioned as those are the details we need to help answer your "engine question". Please post picture format files (jpg, png, etc) instead of PDF's as PDF's don't readily display for all to enjoy. If you need help with that, see
this post.
On the rest of your topic in this post, please take a few minutes and go read
Welcome -- and now where do you go??. Once you've read through that, please post specific topic questions in the best Tech Forum that fits the topic best.
On that note, you could probably post most general questions in the
Big Bolts forum as many things related to your truck are "Big Bolt" specific.

PS - Please also read
Rule# 2 in our forum rules as asking to buy/sell items anywhere besides the
Swap Meet forums is against the rules. You can certainly ask for help identifying parts/numbers and possible sources, but if you're looking for specific parts/items, post an ad in the Swap Meet
Truck Parts Wanted forum.