I just got a 47 1/2 ton p/u, and the engine has been swapped for a small block ford V-8 (289-351w). The question is how do can I tell what engine it is or what year it was manufactured in, or is there a way to find out what type of car or truck it came out of. Thanks

 

Oil level was checked at the front on early 289 then changed to side. 302 intakes are narrower than 351. Is there a serial number?

 

Thanks that helps a lot. where is the serial # you refer at? (bock, head ,or intake)
This is my first ford engine, I have been working on gm and dodge engines for years. When I found this truck I fell in love with it and I think ford will be my new hobby but I have to start over at the beginning. the # on the intake is 080e-9425-a

 

I think the 080E- you see on the intake is really d8de, which if so would make the intake at least a 1978 from {most likely} a mid size car. Bear in mind the vagaries of Ford casting numbers. You may have to pull more parts and get more casting numbers to pin down what you have!

 

well that narrows it down to a 351W or 302. I think a W intake is 10.2" across, a 302 is narrower.