Slick 60's

Today I ordered a pair of 5.0 Mustang shorty headers for my 66 F100 with a 351W. They are for the foxbody style Mustang. Has anyone here used these on their 66 with a 351W? I am having trouble finding headers that fit this truck and I am thinking these will work. Some say they will and others have said no so I just bought them and will try them out when they come in next week. Just want oppinions here. I am going to run 2.50 inch exhaust as well. I had a 302 in the truck but last year I put a 351W into it and the headers from the 302 did not fit and hit the frame and steering box.
Thanks a lot for any information!

My experience has been that the headers for a later model truck (77,78,80) will work if they are both F series with twin I Beam. Maybe someone else can shed more light.

Shawn i tried the same thing with BBK shorty. but they would not fit on a streight shift, The clutch bell crank is right in the way. The BBK 87 to 96 351 f-series work just fine. probably other brand headers for the same years should work too. The Mustang shorties should work with an automatic in a 65-66. Like Jakdad said long tube 302 headers for a 77 to 79 will work for 351 in a 65-66 2wd i've done this with 302 and 351w.

Lonnie

Thanks guys. My 66 has a C-4 tranny so hopefully it will work. I will let you guy's know next week when they come in and I put them on.

I have a set of shorty headers on my 66 f100 with a 351w and I had to put a small dent in one of the tubes on the drivers side to clear the gear box. I do have the newer style gearbox too so that might make a difference. goodluck

Do you have power steering?

I didn't have p/s on the 2wd. used long tube. My 4x4 has p/s but the gear box is in front of the axle 1977 chassis, used shorty headers.

Lonnie

Oops sorry I meant to ask that last question to *1bad66*.
I was going to try the long tube headers that someone posted before and said they worked but they were just painted and I wanted ceramic coating so they will not rust out.

I had a 351W in my '72 Short bed.
Ran Mustang shorty's on it no problem.

Power steering and AOD tranny too.

Well they seem to work. Only thing now is that the passenger side points towards the frame so I hope 2.50 inch pipes will bend away enough to not hit the frame.