Hey guys, here is what i am building. 96 F150 4x4 Xcab short bed, currently 351w E4OD 8.8 D44 TTB. Still love my OBS as power stroker guys call them. Now it has 176k on original engine and well I want more.
400 TMeyer 14cc dish pistons, going with Trick flow powerport 195cc heads72cc chambers decking to 67cc to get compression up to 10:26:1(when they finally release them) Cam craftcams roller cam Duration at .05 .198in/.210ex, .519in/.536ex lift, 112 lobe seperation, Scorpion racing roller rockers, PMI 351w to 351m/400 adapters with my 5.0 truck upper with 351w lower port matched to 5.0. Ran by the OBD-II 351w eec backed by built E4OD, 10.25 rear and 8lug GM 44 parts front.
Now here is my problem, now that your up to speed here. I want to run headers...short tubes this era truck in 4x4 long tubes driveshaft cleared but routing exhaust will play evit for the trans. Cleveland based engines thats very few and far between I found D&D build them in short tube for fox body smallest primary at 1 7/8, was amazed by the phone call too, a 351C header will not bolt up to a 351M/400(sure). Other I found was Sanderson with their short tube truck header set up for 4V heads at 1 7/8 primary. I want a header with a 1 5/8 or as much as I hate to say it 1 3/4 I don't want to go big and kill low end grunt with it being a driver and tow rig for the toy.
Have I missed something? Anyone know of something else or info I have mistaken on primary size? Can I take a set of windsor headers cut flanges off get angles right and weld cleveland flanges on?

Any help is appriciated.
Thank you
Curtis

 

Headers for a 351-400M 1980 & up truck should work.2V heads of course.

 

well just modified a set of headman 89360 fenderwell exits. changed the flange. in my situation i have 4v head with big exhaust port. had to convert down to a smaller port of 1 5/8". like you mentioned 1 7/8" is to big for work truck. i agree 100%. Nice to have big hrspwr's but the hrspwr numbers are way high in rpms and not where i will be using my truck.. Back to headers stuff. i think anything is possible if your willin to modify. big port to small port header was a lot of work and took about 3 weekends to complete. also had to mock up in truck and tack weld in place to confirm a proper fit. the smaller port in header required me to build a filler on btm of header flange to compensate for the port mismatch. you can build a plate or just build up. in your case i don't thing will be as bad being a more standard port compared to a 4v port. the bore centers on a windsor and cleveland are same and you can tweak the header tubes around for minor adjustments. my question for you is can you run fender well headers and whats in the way outside of frame like shock mount or something else like sway bar mount??? this my question for your application. I have many photos of my build in my albums to look at and drop a message and will help if possible.

 

so your doing a 351w in a 1996 truck and modify headers or 400/cleveland in a 1996 truck and modify headers. the windsor is smaller and a little more narrow and header might not reach out past frame on header clearance. but if running a inside frame application i believe doable with windsor application. either will work but how are your fab skills and do you own a welder! if you have to pay someone to do work i wouldn't do it. hourly rate will kill the budget. if doing your self plan on some down time with truck and do a nice job. welder and grinder and some cutoff disc and good things will happen. in my avatar is a 400 ford on fender well exit headers not modified yet. they are now modified and installed truck, looks good. will be sent off to get ceramic coated soon. workin a tranny issue for overdrive at the moment. 400 ford with overdrive, sweet!

 

Well I am doing a 400 with windsor style intake, in a 96 f150, I need short tube header for it, I don't want to run the manifolds. Debating on a set of BBK 351w headers cut the flanges off and buy a set of flanges for a 351c/400 with tubes in place already and cut grind and weld them up if there is no other option.

Thank you
Curtis

 

check into headman headers or hooker. i know they make headers for these trucks. bronco graveyard sells headers also. why do you need shorty headers? if going to all this work should use a long tube header for better torque curve and about a 2.5" collector or 2.750 for decent results. shorty not so good for torque. in my application went to the trouble with long tube headers and 1 5/8" tube for street torque/towing. look into hooker headers and see what might work for application. will check later. headers lots of hrspwr/torque to be had or lost and usually lost in most application.