Log in

View Full Version : 351C Headers



bigal0043
01-04-2024, 02:58 PM
Hello, i am to the point of figuring out the headers for my 351c. I had read multiple places that you can take the 351W headers, cut off the flange and weld on a 351c flange and everything will line up with the J Pipes.
194069
I ordered these headers Https://www.ebay.com/itm/355293328080

Before any cutting and just holding them where it looks like they would line up, there is no way that these will fit in the engine bay.

Was this the wrong type of heads while they didnt say "shorty" on them the photo looked identical to the "shorty" on the other stores?

bigal0043
01-04-2024, 04:14 PM
194071194073194074


Maybe they will fit, does anyone have measurements on where in relation to the footbox do the j pipes exit? Ie how many inches and then in relation to the frame or even ground for elevation.

Driver side as well though that is going to be a hot mess.

rich grsc
01-04-2024, 04:14 PM
You bought a $100 set of headers, and they don't fit. ????? wonder why? It's for a 5.0, or 302

bigal0043
01-04-2024, 04:22 PM
194110

After more adjustment i think i have the angle of where to cut the flange off for the 351c flange, would anyone be willing to provide some measurements of where the J Pipe flange where the side pipe exits is in relation to the foot box?

Ford & Jeep Fan
01-04-2024, 06:40 PM
You bought a $100 set of headers, and they don't fit. ????? wonder why? It's for a 5.0, or 302 I've done this sort of thing more than once. If I have to Make parts work from other parts tI see NO need to by top quality part to cut them up.

To the OP: remember there is a 45 degree difference between the head surfaces of a 302/351W and 351C. And I am curious which Cleveland heads do you have???

bigal0043
01-04-2024, 06:53 PM
2V Heads

zarnold
01-04-2024, 11:39 PM
I can't offer any help, but do you have a build thread? I'd love to see this engine come back to life.

bigal0043
01-05-2024, 07:13 AM
Zarnold-
No build thread, maybe ill get to it, been taking lots of photos.
First start was uneventful to keep cranking till all the fuel lines filled the carb.
This was second start, still waiting on a bracket for the accelerator cable to hook that up, and a coolant bypass plate (goes into thermostat housing to be able to use Windsor thermostats) to finish the coolant lines up.

https://youtube.com/shorts/NWgxFESi_oQ?feature=share

Ford/Jeep Fan -

Thinking about it more overnight, that makes sense on my first reaction of wow this is way off, me having to tilt the headers out was about 45 degrees to start making it look like it would match up. Tonight ill start cutting off the 351w flange.

zarnold
01-06-2024, 12:05 AM
Zarnold-
No build thread, maybe ill get to it, been taking lots of photos.
First start was uneventful to keep cranking till all the fuel lines filled the carb.
This was second start, still waiting on a bracket for the accelerator cable to hook that up, and a coolant bypass plate (goes into thermostat housing to be able to use Windsor thermostats) to finish the coolant lines up.

https://youtube.com/shorts/NWgxFESi_oQ?feature=share


Cool!

burchfieldb
01-06-2024, 08:54 AM
I can't offer any help, but do you have a build thread? I'd love to see this engine come back to life.

I have also built one to go into a coupe. This is the build thread:https://thefactoryfiveforum.com/showthread.php?44232-Brent-s-Ford-351-Cleveland-Coupe-Build

This is a video of it running: https://youtu.be/_bC8_Okxr2M

I plan on making my own exhaust for it. I 3D printed a kit like Icengineworks sells to be able to mock up the exhaust.

burchfieldb
01-06-2024, 08:55 AM
2V Heads

Did you make any modifications to it or is it stock?

bigal0043
01-06-2024, 12:56 PM
Marking 1 1/4" on the top of the header pipes and cutting to an angle to the bottom seemed to make the best fit. This brought the header out far enough it appears to not hit the frame. Both sides came out pretty even. Tomorrow I plan on finish welding everything together and cleaning it up. The side plan was to paint everything in black high temp paint anyways.

Do have some adjustments now for fuel lines they are too close to the header now. Same with power steering lines and also need to purchase a 90 degree oil filter. Not a fan of the relocation kit with more hoses that could fail.

194181194182194183194184194185

bigal0043
01-06-2024, 12:58 PM
Another photo
194186

Burch - I did take it all apart, replaced all gaskets, cleaned it out. Swapped for the Edelbrock intake manifold, but other than that pretty much stock. Not really looking for a race car or show car, just something to play around with on the weekend. Valve covers are also needing to be swapped, but trying to keep it low cost as possible to keep wife happy.

burchfieldb
01-06-2024, 03:03 PM
Another photo
194186

Burch - I did take it all apart, replaced all gaskets, cleaned it out. Swapped for the Edelbrock intake manifold, but other than that pretty much stock. Not really looking for a race car or show car, just something to play around with on the weekend. Valve covers are also needing to be swapped, but trying to keep it low cost as possible to keep wife happy.

I get that. Should be more than enough power for these cars. Mine was in really bad shape and need a complete overhaul. It sounds and looks great. If you need any extra stock parts, I have everything still. I was going to scrap them, no bites trying to sell them online.

Ford & Jeep Fan
01-06-2024, 05:10 PM
Marking 1 1/4" on the top of the header pipes and cutting to an angle to the bottom seemed to make the best fit. This brought the header out far enough it appears to not hit the frame. Both sides came out pretty even. Tomorrow I plan on finish welding everything together and cleaning it up. The side plan was to paint everything in black high temp paint anyways.

Do have some adjustments now for fuel lines they are too close to the header now. Same with power steering lines and also need to purchase a 90 degree oil filter. Not a fan of the relocation kit with more hoses that could fail.

194181194182194183194184194185

Those look quite good to me and since the pipes angle upwards at the head flange its likely you improved flow on them since that's the way the air wants to go on a Cleveland head.

If you ever want a bit more go in the future (and you will,... just as we all do) you are now just a modern cam and head swap from big gains.