351c in a 68 ford f100. The engine was in this unit before and the cross member was hacked up to make the headers fit.
Different frame now and cv front steering put in.
Looking for a recommendation on the headers. I think what I have now is headman headers for a 351m.
I saw a picture of the headers outside the frame which I think would solve a lot of clearance problems.
Or a set of shorty headers which is not good for the low end torque that I’m striving for on this build.
Let me know. Thanks

 

I have a set of used headers from my 79 f250 with 351m that im willing to sell. Im just upgrading to different type.

 

Always heard shorty headers gave up top end, not low end.

 

IMHO, Unless you go with shorty’s or actual custom built headers, 99% of all headers will require "massaging" to install (whether it's denting a tube, moving a bracket, etc.). Unless it is for racing purposes, in all reality, there are little differences in overall performance between shorties (Tri-Y), mid-length & long tube headers.....shorties actually perform excellent up to about 5500 rpm and then will have a slight drop until 6k rpm when it begins to really decline.....more than enough for street use and much better than oem manifolds. IMHO, and in general, the head plate should be at least 3/8" (1/2" is best), tubing should be at least 16 gauge (14 is best).....otherwise leaks and burn-though are going to be a problem as well as the longetivity of the headers.

With regards to your F100 & engine combo, IMHO, picking up a set of "you-built-it" header kit will really get you an excellent fit & finish.

 

So who sells the u build it header kit? Never heard of them before.
I pried open my wallet and bought a set of Sanderson block hugger mid length from eBay.
I here people on the forums rave about them.
Looks like they will point down and leave lots of options on where to run exhaust pipes

 

Sanderson IIRR has been around since the 50's IIRR..... and if my memory serves me correct they are of good quality......for a period of time they use to make casted headers as well (IIRR) and those had a few issues with cracking over time. Hooker, Headman, etc. all make build it yourself header kits...………...