i have a 65 f100 2wd with a 351m and c6 also have installed powersteering but am having trouble figuring out what headers will work and get past steering box and clear crossmember any help is appreciated
You will need to buy your headers for 73-79 the frames on these trucks are
the same up front! I have not install any headers on the 351m/400 ! But you
search some of the old posts you should turn up a lot. When you search
keep in mind you will be looking for info on headers for 65-66,67-72,73-79, so
you may want to check out posts in those forums also!
P.s. heres a link to my gallery take a look at the crossmember that I modded.
Was curious as to which steering box you have? Bendix or Saginaw?
I am running a Bendix and had to tweek one of the pipe's a bit to get it to clear the box.
I know it is no-no to "dent" the header. But at the time.??
I have a 61 merc on a 63 frame (unibody). I was having the same issues with headers and steering. I have a 460/c6 combo in the truck.
What I found that worked best is a set of hooker headers from 88-94, they fit very tight to the engine, and the drivers side runs almost under the tranny. I did not have to heat and bend any thing, and there is all kinds of room.
Hope this helps a little, don't be scared too try headers from other years of trucks, all demensions and measurement are available on line for most quality headers
Have a 390 in one of my 65's with Hedman long tubes, and another 65 with a 302 and using Hooker long tubes. Only issue was on passenger side crossmember, had to remove minimal amount of material to increase flange clearance. Also, had to lift engine slightly, and if recall, remove starter to install. Used Hedman offset extentions to get around the tranny crossmember issue. Intend going with Pro-Streets model when I replace mufflers, which should be soon, way too loud.