i'm looking to replacing my exhaust manifolds on my flathead. these were on my 8BA that was in my '49 f1 when i bought it. i replaced the 8BA with a EAB from a car and we reused the manifolds from the 8BA. the car ones seem to cross over in front of the engine (at least in 53??) and the truck ones i had cross over under the pan. do i have that right? when i search for them, other than ones that look like these, is there anything else i need to know? their is a pair on e-bay now that look similar to mine but not exactly the same. thanks, as always, for the wise counsel of FTE. dick r. ok: edit: would these fit my truck, crossover situation? the front exit on the left side seems to be at a different angle??http://www.ebay.com/itm/Ford-Flat-He...80851965193%26

 

Yes, I have a 7RT manifold (in pieces ) that came off of my F6. Antidotal evidence leads me to believe that from the factory, our trucks came with 7rt-9430 on the right and a 21a-9431 on the left. I replaceed them with a set of 21A-9430/1 (these are older Ford headers from the 30's and 40's I think) headers when rebilt my 239 Flathead V8 (52 F-6). Many early Ford part dealers have these in serviceable condition for earlier V8s. I was really hoping to obtain the proper 7RT-9430 header, but they are pretty rare it seems. I settled on the 21As as they are essentially identical and fit just fine. All the new production headers are seemingly destined for fitting headaches and are geard towards the modder/hot-rod community instead of the purist. In my searches, I have been warned that the passenger model 8BA-9430/1 headers will not fit appropriately around everything in the engine compartment. A quick search has revealed that Little Dear Born may currently be a potential Source for the 7RT-9430 and other exhaust parts:

http://www.littledearborn.com/truck/...aust_parts.htm
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Also, there are a few guys over here seemingly willing to help out those looking for manifolds:

https://www.ford-trucks.com/forums/1...-manifold.html
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I still have a pair of manifolds.