Anyone know if an intake / exhaust manifold combo from a 1966 300 will bolt up to a 1983?

This will actually be going into a 1978 F150 4x4 which currently has no engine. I have both a 1966 and a 1983 300 cid sitting here. The engine that I so far plan on using is the 1983. Unfortunately the 1983 has had both exhaust exit studs torched. And I can see that one has snapped in the past and was redrilled by someone a little off center. I don't own a torch but I should be able to heat these up (borrow a torch) and get these studs out... although I'm not sure what's going to happen with the redrilled stud. But the real killer is that the heat riser is absolutely shot, stuck, counterweight rusted so bad that it fell off on the garage floor... it's useless. I live in the Chicago area, do want this truck to be eventually winter driveable, and I REALLY need that heat riser to work. Otherwise I'd seriously consider the EFI exhaust manifold swap and forget this whole issue.

Have looked at NEW exhaust manifolds online (can't afford- I'm on almost zero budget). Applications are showing they'll fit 1965-1983.... so now I'm staring at the exhaust / intake on the 1966 engine which still has excellent studs and what looks to be a fully functional heat riser. Wondering why I couldn't just bolt the intake / exhaust combo up to the 1983. Perk is that I'd be getting rid of the already-a-basket-case EGR and air injection inlet on the 1983. Downside is that the 1bbl YFA doesn't fit on the 1966 intake.... but I think I can carefully grind the mounting holes in the carb base and make it fit.

Kind of feel like I have this basically figured out but I'm wondering if anyone else has ever done this and can give me any warnings before I have two intake / exhaust combos pulled off laying on the garage floor. I know it seems stupid to be sticking 1966 parts on a 1983... but not having much of any money to spend on this whole thing is my big problem.

I can't stick the 1966 engine in the truck because it has a 2wd center sump oil pan. To buy a new oil pan, oil pump pickup tube, find a dipstick and dipstick tube, gaskets etc would run me another $150+ that I also don't have to spend.

 

Adam79,

Do you have to pass emission tests where you live?

 

No, not on a truck this old. I think the cutoff here is 1993 and up. So I should be safe.