3400 swap mount

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3400 swap mount

Postby apay » Sat Oct 26, 2013 8:55 pm

does anyone have the build sheet for the front mount for 3400 swap



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Re: 3400 swap mount

Postby Slinky » Sat Oct 26, 2013 8:58 pm

There is a thread on here somewhere I believe with it, try doing a search


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Re: 3400 swap mount

Postby apay » Sat Oct 26, 2013 9:00 pm

i had them but domesticcrew had the build "sheets" but there sites done now



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Re: 3400 swap mount

Postby 3X00-Modified » Mon Oct 28, 2013 8:16 am

If someone gets me dimensions I'll TIG up a few of these for this site.



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Re: 3400 swap mount

Postby apay » Mon Oct 28, 2013 9:37 am

i just want the sheet with the cut outs the angles for building one i had a copy but they got lost



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Re: 3400 swap mount

Postby themixer » Mon Oct 28, 2013 12:29 pm

http://www.v6z24.com/jbodyforum/files/d ... ns_175.pdf

Here is the mount dimensions ! 3x00 if you make these I wouldn't mind picking one up



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Re: 3400 swap mount

Postby 3X00-Modified » Mon Oct 28, 2013 12:31 pm

WOW that's intricate... LOL I'll have to pick up some plate steel and try this out.

Do you have a link to the stated "cad cut file" in the directions? Might help me with actual dimensions.



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Re: 3400 swap mount

Postby SummitBalt08 » Mon Oct 28, 2013 1:39 pm

I know Tyler would be interested in 3400 mounts for his GTU also


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Re: 3400 swap mount

Postby themixer » Mon Oct 28, 2013 2:07 pm

I will have a look on my laptop at home I believe it's saved



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Re: 3400 swap mount

Postby Rettax3 » Mon Oct 28, 2013 4:11 pm

I built one a few years ago for my '90 turbo LG5 3.1/ LA1 3400 hybrid. The mount I built is no way that complicated, and it works perfectly. I am using a 3400 block from a '99 GA/GT, and I retained the A/C compressor and bracket from the 3.1 MPFI engine. IIRC, I had to grind-down a little of that aluminum bracket to clear the oil-pan on the 3400, and the newer blocks are also lacking a mounting-bolt hole in the front of the block by the crank pulley to support the compressor bracket, but the mount I built supports the bracket at the top like the 2.8/3.1 engines originally did, so it is fine. I built one for another board member, and I made a spare for myself. I can make more of them if people are interested.

They aren't super pretty, but you really can't see them anyway. I just don't like that other mount because if you are off by a few degrees here or a fraction of an inch there, the errors will keep multiplying, and there are so many pieces to it that there are a lot of places where errors can creep in. And IIRC it doesn't support the older-style A/C bracket at all.

Here are a couple of pics of my spare mount, the one I built for the other board member is quite a bit beefier due to his HP goals, and has a longer webbing across the top. I have complete confidence in this one though, considering that the steel it is made from is 2-3 times thicker than the frame-side mounting point in the car itself...
3X00 FtMt MkIII 1a.jpg

3X00 FtMt MkIII 2a.jpg

The newest version also has the option to be bolt-together so the top-half and the bottom-half can be adjusted in case someone wants to tweak the engine up, down, forward or backward a tiny bit. On my '90 turbo 'Retta for instance, I brought my engine up ~1/2 inch to help clear the bigger T-4 turbo parts I upgraded from the LG5's original turbo setup, without having to hack-up the car's transmission-mount bracket.

And if someone doesn't have any interest in using the older-style A/C compressor, then that tab on the bottom can just be deleted, which saves me some time building it.

If anyone wants one, just PM me, and we can discuss price -mine wouldn't cost as much as the other mount either since it just isn't as complicated to build. It would take me a few days to put one together and ship it out.


1989 Super Charged 3800 Series II (First)Six-Speed Conversion GTU
1990 Turbo 3.4 Five-Speed T-Type
1990 4.0L 4-Cam 32-Valve V-8 Five-Speed Indy GTi (Rebuild Project)
1990 Stock(!) 3.1 MPFI Auto Indy
1995 3400 Top-End Auto OD Z-26

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Re: 3400 swap mount

Postby apay » Mon Oct 28, 2013 9:10 pm

those shape are the actually size jon



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Re: 3400 swap mount

Postby 3X00-Modified » Mon Oct 28, 2013 9:35 pm

Yeah I know that, I'll probably print it and measure it to see what it all is. Was just hoping for dimensions on the prints.



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Re: 3400 swap mount

Postby apay » Mon Oct 28, 2013 10:12 pm

oh i get what you mean



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Re: 3400 swap mount

Postby 3X00-Modified » Tue Oct 29, 2013 8:49 am

Yeah I'm a technical kind of guy I like to have numbers and not just templates :)



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Re: 3400 swap mount

Postby Alpinestar10 » Tue Oct 29, 2013 11:08 pm

jon ask rocketeer on v6 for the cad file of the mount on v6 he Should have it not sure.




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