Y Block Rams Horn manifolds

[junkyardjeff]

I knew of two 56 big trucks sitting in a woods thinking it should have the rams horn manifolds and it did but had the Lincoln engine,there was also a 54 or 55 F450? but it had the normal single exhaust manifolds.

[RSchnell]

I bought a '59 Ford F-800 fire truck that had the 332 Heavy duty engine and it had the ram horn manifolds. Bought it with the intention of making a rollback out of it as the frame was already the right length- but someone offered me double what I paid for it before I even got it home, so it went down the road. I'll have to see if I can find the photos. 

I've been messing with Y-blocks for 30+ years. Even though my days of projects are probably over, I still want to build one more "full house Y-block" and put it in a '56 Victoria.

[tim boyd]

Thanks again Bill for the added detail.  Very helpful.  And, certainly reassuring for me to learn that I didn't "imagine" those traditional hot rods with Lincoln V8's and ram's horn manifold.   TB

[W Humble]

Of the top of my old cabeza: I know Speedway sells a streamlined version of the 'rams horn' for 1/1 SBC's, perhaps for Y-blocks as well?  However, using a 1/24 scale SBC part as a starter might be easier than the 1/25 size, as the added bulk could help put over the look. 

IMHO (and in my case it really is HUMBLE) making custom exhaust headers that look realistic is a true challenge, even if one isn't trying to copy a prototype.  I'm doing a set of big logs for a V-16 Diesel using plastic exhaust pipe from two old AMT 1/16 Nomad kits, and it's a compromise at best; no chance my making tube headers for that many exhaust ports.  I have better things to do with what time I have left making models!  Anybody want a few sets of stock Y-block exhausts in 1/25, I'll contribute them.  I have so many unusable Y-blocks that I'm putting together parts for a c. 1957 'Hillbilly Showboat' four-engined rail.   We'll see...

[Ace-Garageguy]

19 minutes ago, W Humble said:

... I know Speedway sells a streamlined version of the 'rams horn' for 1/1 SBC's, perhaps for Y-blocks as well? 

Yup. At least two manufacturers make ram's horn cast iron exhaust manifolds for the Ford 239-312 Y-block...though not for the "Lincoln" engine (*to the best of my current knowledge).

[MeatMan]

I use

8 hours ago, my66s55 said:

I think I saw in one of your recent posts that you are using Blender. First off, be aware of tunnel vision when using photos for background image. Search the web for good images and set up background images from available sides. This photo shows a more accurate straight on picture. It came from an ebay listing https://www.ebay.com/itm/165287597173?hash=item267be89475:g:EBkAAOSwLHhfWV9l and has more decent views. I've been using Blender for 7+ years so if you need any help, just message me.

 

I use blender to clean up files I get from other people. I use Alibre Atom for drawing.

I just did these rocker covers.

No big deal, just offering as a hobbyist and not tryna make a buck.

Edited January 24, 2022 by MeatMan

[my66s55]

I didn't take you post to mean anything more than what you just state here. I saw it as a gesture to help someone and work on your skills. You valve cover looks nice. 

 

 

 

 

[Sledsel]

On 1/23/2022 at 9:45 AM, MeatMan said:

Hey Andy, I'm dabbling in CAD design and would take on making a drawing of these on to help hone my skills. I could then print a set in resin.

No guarantees, but if you give me the end to end length, approx port size for the end ports and exhaust exit size I'll give it a go as long as you don't need them immediately.

Unfortunately these are the only measurements I know and I do not have a physical set to measure the rest.

I do know from the center line of the exhaust port to the top of the manifold is 4 1/2" and from center line of exhaust port to outlet flange is 4"

 

 

Edited January 24, 2022 by Sledsel

[MeatMan]

4 hours ago, Sledsel said:

Unfortunately these are the only measurements I know and I do not have a physical set to measure the rest.

I do know from the center line of the exhaust port to the top of the manifold is 4 1/2" and from center line of exhaust port to outlet flange is 4"

Cool, those measurements are in line with my measurements of the Y-block that comes in the AMT 57 Ford kit and I've been doing some preliminary work.

I'll let you know one way or the other if I can do it.

[junkyardjeff]

If anyone makes any I would be interested in many sets,i have seen on trucks what looked to be rams horns on a FE and those might be something to make too.

[MeatMan]

I got a little work done on them last night and this morning.

The result is decent but I think the variations are acceptable when printed to scale.

I'm printing some parts for my Club DeMer today so I'll throw these on to see how close they are to fitting the 57 Ford engine.

Comments welcome from anyone who sees something that could be done better. As I said, I'm a relative newb.

Edited January 25, 2022 by MeatMan

[Sledsel]

25 minutes ago, MeatMan said:

I got a little work done on them last night and this morning.

The result is decent but I think the variations are acceptable when printed to scale.

I'm printing some parts for my Club DeMer today so I'll throw these on to see how close they are to fitting the 57 Ford engine.

Comments welcome from anyone who sees something that could be done better. As I said, I'm a relative newb.

Looks great!!!! If these are successful, I'd like to purchase some. I have a stalled kit awaiting these. I was gonna look for some SBC manifolds to modify but I am going to hang tight 

[Mark]

Only things I can think of are...

-the small bumps on the end cylinders, also the casting marks at the top of each horn.  May as well get those if possible, it seems most of the guys who run these manifolds don't smooth them off.

-check the angle on the outlet...do these dump straight down, or do they tuck in towards the engine block, like block hugger headers?

[my66s55]

5 hours ago, MeatMan said:

I got a little work done on them last night and this morning.

The result is decent but I think the variations are acceptable when printed to scale.

I'm printing some parts for my Club DeMer today so I'll throw these on to see how close they are to fitting the 57 Ford engine.

Comments welcome from anyone who sees something that could be done better. As I said, I'm a relative newb.

Looking Good.

 

[Sledsel]

On 1/25/2022 at 11:32 AM, Mark said:

Only things I can think of are...

-the small bumps on the end cylinders, also the casting marks at the top of each horn.  May as well get those if possible, it seems most of the guys who run these manifolds don't smooth them off.

-check the angle on the outlet...do these dump straight down, or do they tuck in towards the engine block, like block hugger headers?

They do dump slightly towards the block.

As for the casting bumps No biggie if they are not there..... to me at least

 

 

 

Edited January 26, 2022 by Sledsel

[MeatMan]

Okay, did the first print and they came out good print-wise but I made the mistake of using the kit manifolds for size and didn't account for the bolt holes, which aren't on the kit parts, aaargh?.

Its pretty much a do-over at this point because I'll have to resize it in the drawing because I believe resizing the finished file will reduce the print in unintended ways.

And yes Andy, they do appear to be curved inward on both pics but I couldn't make that out on the head-on pic. That calls for a different approach than what I used, its called a "sweep" and I used it once before to make a drop axle. I'll give it a go here since I have to start over anyway. As for the casting marks, its no big to add them but they probably won't print well on my low end machine. Thanks for the input.

[Sledsel]

32 minutes ago, MeatMan said:

Okay, did the first print and they came out good print-wise but I made the mistake of using the kit manifolds for size and didn't account for the bolt holes, which aren't on the kit parts, aaargh?.

Its pretty much a do-over at this point because I'll have to resize it in the drawing because I believe resizing the finished file will reduce the print in unintended ways.

And yes Andy, they do appear to be curved inward on both pics but I couldn't make that out on the head-on pic. That calls for a different approach than what I used, its called a "sweep" and I used it once before to make a drop axle. I'll give it a go here since I have to start over anyway. As for the casting marks, its no big to add them but they probably won't print well on my low end machine. Thanks for the input.

They look pretty good in my opinion. Maybe shrink the flange size a bit and try to leave the port spacing pretty close to what you have. 

That set may work on the 56 Thunderbird from Monogram because it is 1/24. I will dig up my 1/24 engine and measure the head length.

Nice job for sure.

[MeatMan]

18 hours ago, Sledsel said:

They look pretty good in my opinion. Maybe shrink the flange size a bit and try to leave the port spacing pretty close to what you have. 

That set may work on the 56 Thunderbird from Monogram because it is 1/24. I will dig up my 1/24 engine and measure the head length.

Nice job for sure.

Yes, I'd like to have that measurement before I do anything further.

[Sledsel]

16 minutes ago, MeatMan said:

Yes, I'd like to have that measurement before I do anything further.

The cylinder head length on the 1/24 Thunderbird engine is 13/16"

Center to center on the outer exhaust ports is 11/16"

[my66s55]

1 hour ago, MeatMan said:

Yes, I'd like to have that measurement before I do anything further.

What printer are you using to print these?

 

[leafsprings]

Manifolds look great!  Sure wish I had a set when doing the 332 HD for a " 56 T 800 build. I modified some Dodge manifolds. The 302 and 332  truck engines  (shown )were introduced in '56 and used up to '63. These engines had gear drive cam and crank, features never used in Lincoln car engines.

[Sledsel]

24 minutes ago, leafsprings said:

Manifolds look great!  Sure wish I had a set when doing the 332 HD for a " 56 T 800 build. I modified some Dodge manifolds. The 302 and 332  truck engines  (shown )were introduced in '56 and used up to '63. These engines had gear drive cam and crank, features never used in Lincoln car engines.

Great job on those!!! 

[MeatMan]

2 hours ago, Sledsel said:

Great job on those!!! 

 

5 hours ago, my66s55 said:

What printer are you using to print these?

 

Thanks guys, I have a little Photon Zero. Perfect for what I print.

Edited January 27, 2022 by MeatMan

[MeatMan]

7 hours ago, Sledsel said:

The cylinder head length on the 1/24 Thunderbird engine is 13/16"

Center to center on the outer exhaust ports is 11/16"

In that case the ones I printed should fit! I'm attaching a better pic and if you are good with how they look, PM me your address and I'll send them out.

[Sledsel]

12 hours ago, MeatMan said:

In that case the ones I printed should fit! I'm attaching a better pic and if you are good with how they look, PM me your address and I'll send them out.

They look really good!