I stand Pat on what I said in post #13.

 

Hello amigo 303..
I have switched my intake to an Offy DP, with 4bbl, and Clifford's headers. So, I have a spare stock intake, exhaust, and carb if you want it. Only catch is that it is taking up space in my shop in Baja, but it could easily ride North with me on my next trip. I usually drive my highway rig to San Diego, so where are you, if you want it?? or them? Anyway, they are good, not cracked, but off a '68 300 IL 6 in a F250 4x4, and have seen lots of service. No real reason I switched, other than I found the Offy intake on Evilbay for way reasonable $$ and just followed my wallet. Stuff's free to you other than the shipping from SD..


Baja

 

Howdy Guys,
Sorry when I went back to check this thread I didn't notice that there replies on page 2.
Jeff,
I don't disagree. The intake is for a late model and the exhaust is for an early but supposedly they are supposed to work together according to the seller... but therein lies my problem...I do think this part could be made to work if it was milled back square but I was hopeful the seller would take care of this.

Anyways,
After trying in vain one more time to bolt this up to the cylinder head, just to make sure I wasn't crazy, I called Steven's and told them something wasn't right and that I was going to send both manifolds back for them to check again. They were reluctant, and told me that they would just bolt it right back the same fixture they tested it on before. I inquired more about their fixture, and they said they bolted it too an actual early model straight 6 cylinder head, probably off a 240.

On my last fitting attempt I tried to take detailed photos of what the issues where and included it in my shipment (which is expensive by the way and I have now sent it twice.) I shipped them back bolted together this time and even bolted the gasket on so that it would be plainly obvious what my issue was. Several days went by after I saw they had received my package and I received no response... I called and left messages and still received no response...Today, a week later I finally called and reached the guy I was looking for. I could rant on about how these guys treat you on the phone, but it would be like kicking a dead horse at this point... To some it up, he said that the problem was that my gasket needed to be cut and that if I would search the internet I would see that this is common on F700s...I sort of lost patience at this point, otherwise I would have asked him "what does that even mean?" Instead I asked for the owner, and as I feared, I was talking to him. The conversation didn't last too long after that. I told him these weren't going to work for me and that I just wanted my money back. He said it had been too long to get a refund as I bought these in December. At this point I went off a bit, and he eventually agreed to give me a refund if I could give him my receipt...(if he means my original receipt and not a print out of my CC transaction then I'm in trouble) I didn't get around to asking for my shipping money back...

Anyways, I had checked the gasket before and found that it aligned perfectly with my cylinder head, all the bolt holes and all the ports. I explained this in my notes that I sent along, which I don't know if anyone even looked at. In the last fit testing I did, I didn't even use the gasket and if I aligned the intake perfectly, I couldn't even get the exhaust to bolt up. The gasket it immaterial and I only sent it to show how the manifolds aligned with my ports.... And what difference would it make to the cylinder head, the gasket, or the manifold, if it was installed in a F700, F600, or F250?

I will try to post some of the pictures I took and sent along. I am on satellite internet and am over the bandwidth, so everything is dreadfully slow.

I will try to call again on Monday and see we can calmly go over what they were talking about. If this gasket didn't line up with their cylinder head and it does with mine then we have an issue, if they did indeed try that. This store has an email address but either nobody checks it or bothers to reply. I found that out with my first issue that I had, which was as Jeff pointed out, that the intake was for a late model with EGR. The product picture on the website doesn't show the EGR port and when I talked to this owner way back in December I included my year and model and he told me the only issue with this intake would be that these bigger trucks (F600 and F700) use a special carburetor that had a different bolt pattern then other carbs and that I would have to slot the holes in the throttle plate. I am pretty sure now that this isn't right, and that the only reason this intake has the wider bolt pattern is that it is a later model and all early models had the narrow pattern. Perhaps some of you guys might know more about this. And of course the intake showed up with an extra hole that I ended up plugging with a freeze plug.

Well that is where I am at right now. This has been dragging on in limbo for a long time now and I really want to get something running soon.

Baja,
I really do appreciate this offer. Does it still stand?

 

Well...I stayed up late enough to be in the "free bandwidth zone" so I will try to post a few more pictures.

First off, here is the one where I try to show that the gasket is correct and aligns perfectly to the cylinder head.



Here I have the two manifolds bolted together on the ground with the gasket laid over to show the misalignment. The bolt hole on the far right and and top left (this hole is not a bolt hole apparently to for a dowel to use in alignment of the intake) must align for the intake to set right but doing so throws the exhaust way out. In order to align both, I must loose the bolts between the two manifolds and create a crack there. I might be able to cheat and throw the intake slightly out (not use the alignment dowel) and find a spot where everything will bolt up without having an exhaust of vacuum leak, but still the ports would not be 100% lined up. This may be what Steven's did without even knowing it.



In the next picture, I have lined the intake up perfectly by bolting the leftmost bolt up (the rightmost in the previous picture) and sticking a bolt through the dowel hole (didn't have dowels.) The intake and gasket are now both perfectly aligned with the ports in the cylinder head. But now look at the exhaust. I kept the bolts between intake and exhaust loose until this point as indicated in the shop manual and then tightened them to close up the crack between the two. The rightmost bolt hole in the exhaust was over-sized enough to get the bolt in, but not the other bolt "tabs" on the right side of the exhaust. The left side bolts up fine. Even if i could get the bolts in, it is not aligned with the ports at all. What would be the point of a high flowing HD exhaust if I cover up 1/3 of the port?



The first time I put this together, I ended up aligning the exhaust and not the intake and had a vacuum leak. The second time, I aligned them both but had a crack between the two and an exhaust leak. This time I aligned the intake and the exhaust is out. There are no other permutations that I can see!

I thought I could show Stevens these problems simply and clearly but they are 100% convinced that I didn't install it properly and will not budge. They must not have even looked at these pictures to come back and tell me that my gasket was the problem. How is my gasket keeping these bolt holes from lining up! Also, the right side of the exhaust is dropped down so low and there is no chance of the alternator bracket going back on.

Anyways, in case I don't get any of this back, what other options are out there? I wanted to run the HD exhaust as was original in the truck, but would I be giving up much to run a standard? Could I just put on headers? What about intakes? Strangely, other then the Offenhauser, this was the only new intake I could find, and even it is not the right model. Does no one make replacements for the early model intakes? All of the shops seem to be out of the Offenhauser until later this year, and I was hoping to be running again way before then. Also, those seem to be just for 2 bbl and 4 bbl carbs. I have a brand new (to me) Carter YF 1bbl carb that was supposed to go on here, can these be adapted to the Offenhauser intakes if I went that route, or would I have to pony up for a new carb? Just brainstorming backup plans here.

Thanks for all the replies so far!

 

Take up Baja's offer! Or just start over fresh.

 

I did a little looking and found that you aren't the first guy to have this problem. Have a look:

https://www.ford-trucks.com/forums/1...manifolds.html

Maybe you can explore with a search and find more information.

I had a similar problem years ago. I tried to put a Motorcraft 4bbl on an Edelbrock manifold and had a gap as you have. So I took some sheet steel, fabricated a Toothless Jake rig to cover the hole and used two gaskets. Worked fine.
Perhaps you can get your stuff back and do something similar. You might need to cut up a second gasket to build up space and use liberal amounts of sealant but I think your problem is soluble with ingenuity.

Good luck. Let us know what transpires

 

Offer still good amigo. The one I have is a standard intake and exhaust system with studs for a 1bbl. Worked fine on my 1968 IL300. Yours for the shipping next trip North
Baja