Intake manifold interchange on the inline 6's

[1310monster]

I have a twin carb aluminum intake that I bought some time ago <I THINK> for a Red Diamond engine. I'm not 100% sure what the guy said it came off of. I'm working on a couple of other 6 cyl. trucks now. One has a Black Diamond another has a Green. Will an intake designed for a red diamond engine fit any of the other engines?

Rocky

[Carl Wiese]

I have a twin carb aluminum intake that I bought some time ago <I THINK> for a Red Diamond engine. I'm not 100% sure what the guy said it came off of. I'm working on a couple of other 6 cyl. trucks now. One has a Black Diamond another has a Green. Will an intake designed for a red diamond engine fit any of the other engines?

Rocky

No, the red's outer dimensions are much bigger then the black's and green's.

[1310monster]

Have you ever heard of such an intake that will fit the BD's?

[Carl Wiese]

Have you ever heard of such an intake that will fit the BD's?

I have heard only rumors, nothing more. Do I believe them......well I guess anything is possible, but I don't think it's likely.





























How's that for a cryptic answer? :D :D

[Dan Phariss]

I have a twin carb aluminum intake that I bought some time ago <I THINK> for a Red Diamond engine. I'm not 100% sure what the guy said it came off of. I'm working on a couple of other 6 cyl. trucks now. One has a Black Diamond another has a Green. Will an intake designed for a red diamond engine fit any of the other engines?

Rocky
Very unlikely its for a RD engine these are heavy truck engines and not subject to hotrodding.

Dan

[Carl Wiese]

Very unlikely its for a RD engine these are heavy truck engines and not subject to hotrodding.

Dan

Maybe not in the Heavy Truck world, but in the tractor pulling world, Red Diamonds are really hot rodded.

[1310monster]

I don't know what I have then...it's for some kind of IH 6 cyl that much is for sure. I could have sworn there was some sort of aftermarket, upgrade kit a long time ago offered for, at least the red diamond engines. I wish, and hope that what I have actually turns out to fit the lighter engines. I'll take a picture and get some numbers off of it.

Rocky

[1310monster]

can't figure out how to post a pic. If anyone can help, please email me and I'll send you a couple of pics and you can put them up here.

rockylear@bigplanet.com

Rocky

[Dan Phariss]

Maybe not in the Heavy Truck world, but in the tractor pulling world, Red Diamonds are really hot rodded.

In what class?? They were never used in farm tractors. Since they would have to run in the modified class they would be useless. I watch tractor pulling pretty regular and have never seen anything looking like an RD.
I don't know how exactly you could hot rod one anyway aside from putting a 501 4bbl intake on.

Dan

[John Donnelly]

In what class?? They were never used in farm tractors. Since they would have to run in the modified class they would be useless. I watch tractor pulling pretty regular and have never seen anything looking like an RD.
I don't know how exactly you could hot rod one anyway aside from putting a 501 4bbl intake on.

Dan

Fraid' so, Dan. Below you will see a pic of one that is installed in a Farmall M. It was under construction at this point, but I understand it has been run at the Old Thresermen's reunion since this pic was taken.

The twin manifold the original poster mentioned was made by Nickson. They were primarily seen on cement trucks, from what the old timer's tell me.

Yes, there were, and ARE RD speed parts. :D

-John

[John Donnelly]

I have a twin carb aluminum intake that I bought some time ago <I THINK> for a Red Diamond engine. I'm not 100% sure what the guy said it came off of. I'm working on a couple of other 6 cyl. trucks now. One has a Black Diamond another has a Green. Will an intake designed for a red diamond engine fit any of the other engines?

Rocky

Rocky,

Bet it is a Nickson intake.

It won't fit the smaller engines, sorry. :(

All the more excuse to buy something RD powered and have some fun!

-John

[1310monster]

No it says Ellis right on it. It says International on one port, 372 406 450 on the next port and RD engines on the last port. So yes it definitely is for the RD but I thought you guys would like to see it anyway.

Rocky

[jeff campbell]

the RD'S are awesome A$% motors stock!very powerful.jeff,this is what happens w/RD-450 at an idle w/50 ton winch! :eek:

[Dan Phariss]

the RD'S are awesome A$% motors stock!very powerful.jeff,this is what happens w/RD-450 at an idle w/50 ton winch! :eek:

Yes, I have driven an "awesome & powerful" RD 450 in a R-190 tractor. Yeah, is awesome and powerful, by 1949 standards when truck speed limits were 45 -50 and many truck tractors had engines under 300 cubic inches.

We need to be real here. As my uncle once told my father, you can pull a trailer over the rocky mountains with a Maytag washing machine motor if you put enough gears behind it.

Dan

[Dan Phariss]

Fraid' so, Dan. Below you will see a pic of one that is installed in a Farmall M. It was under construction at this point, but I understand it has been run at the Old Thresermen's reunion since this pic was taken.

The twin manifold the original poster mentioned was made by Nickson. They were primarily seen on cement trucks, from what the old timer's tell me.

Yes, there were, and ARE RD speed parts. :D

-John

A manifold for a cement truck is not what I would call a speed part but it was aluminum. I should know to keep my mouth shut about some subjects. I saw an F-30 with a small Chrysler Hemi in it years ago. It was on a farm in Iowa.
I was wondering why the guy with the RD M had not used the IH 4 bbl intake, it woudl likely make more power but it would not clear the sheet metal I suppose. The 501 may have a different head setup, assuming its not a 501. Don't know if the intake would fit a 450 or not?? I saw photos of an M with a 304.
If he works it very hard the final drives will likely fail. I understand the Farmall 560 had a problem with this and they had a lot less torque than the RD puts out

[jeff campbell]

trying to post a few pics for 1310 monster,here it goes :eek: !jeff

[Geoff]

Rocky,
The pic worked. Very cool setup. Too bad it won't fit what you're working on.

I have seen Ellis manifolds on ebay (and maybe even on IH sites) that were advertised to fit other IH engines than the RD's, but they (obviously) are very rare. I wonder if any of the websites or companies that cater to the inline engine crowd, might have any knowledge of something like this?

I would suggest making one yourself out of steel plate and tubing. With your skills, it wouldn't be too difficult. It might not be as cool as the Ellis piece, but it could certainly be made to work.

My father and I made a tubular intake/exhaust manifold several years ago for a Mercruiser 4 cylinder. It allowed us to get rid of the heavy cast iron log we replaced. It works just like the original piece with water injection into the exhaust to allow it to run through the foot. We did pick up a few HP, because afterwards we were able to run a different prop that the engine wouldn't pull previously.

Good luck.

Geof