I have a late 77 F250 I swaped the 351M for a 460 and was wondering which manifolds would clear the frame, the ones I have the passanger side dumps into the frame rail

 

Have used early 429 out of 1976 lincoln. How ever they are hard to find. There are some aftermarket headers that work better. Have used them they are rear dump shortys.

 

exactly what i was going to suggest. some nice little shorties. are you wanting manifolds or headers? 9 times out of 10 you could get both headers for the price of one manifold. go tohttp://store.summitracing.com/egnsea...115+4294840123 orhttp://www.jcwhitney.com/autoparts/V...001747/c-10101they have some application specific selections there.

 

I would prefer headers, the problem I am having there is my truck is 4wd an all I have found is conversion headers for $400 to $600
if you guys have the specific shorty headers you used I'd appreciate it