I need to know if there are suposed to be 4 or 6 bolts on these manifolds. the 2 end bolts apear to be missing. When I looked at an old 400 I had & it didnt apear to even have bolt holes on the ends of the heads.  Can someone please Help?  

Ok some had 4 and some had 6 I don't know exactly why but I think the heads with 4 bolt holes are the 1970 and earlier looked at all the heads I have in my shop and the only set I have with 4 bolts is a set of #11's and they are 70's what is the casting # of the 2 heads you have but a machine shop should be alble to drill and tap for a 6 bolt manifold if needed.  

Thank you for your anser! Now I have another question. I know for a fact these are the original heads and moter because my dad bought the car new and the moter has never been cracked open. I need to get exhaust put on the car but the guy at the shop said the bolts were missing and the manifolds looked worped.

**What are the chances that they are realy worped if it never had these bolts in the first place?

The car has been sitting in a barn for the last 20 years and has about 90,000 miles on it the exhaust did rust off the car while sitting in storage but she is still running and I dont want to do a rebuild on the moter just yet.  

It is probably a good chance they are worped but the best way to check is if you have a black chalky residue around the manifold or head were the gasket is or if you can fell air pushing out around the gasket area but the manifold gaskets should be replaced any way.