these are sweet! keeping an eye on these for when i start my next 3.4 swap. early 90s 2WD reg cab short bed 5spd and a supercharger.

 

Here's my version of the Thorley crossover mod:

I went with the Thorley 3.4 headers when I did my swap last year and they worked great. I chose the Thorleys because they were the shortest body header which gave me plenty of room to fashion a new crossover to the driver's side and still keep everything tucked up close to the engine, including a SS flex joint, and still not hit the firewall. The driver's side header clears the steering shaft well and the power gains are very noticeable as I am running 38's on the highway with 4.88 axle gears! Just get some mandrel bent U- and J-tubes (I got mine from Summit) and take your time bringing the crossover back to the driver's side. When everything was routed correctly I then did the finish welding, pressure tested it with the ends plugged and welded up any remaining pinhole leaks. Then I had the crossover and driver's side header (which I had to mod slightly) re-ceramic coated inside and out at Jet Hot.

http://s1048.photobucket.com/albums/...20Xover%20Mod/

 

so just a little update for you interested folk .

new metal shop is being set up now , so please bare with me . new tig is on its way , and hopefully should be ready to go this summer (fingers crossed)
We have a couple of 5Vzfe installs coming up , and hope to have our jiggs all set up so we can build some and get them installed

stay tuned



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Subscribed! Looking forward to seeing these become available. Long live the 3.4 Swap!

 

Slacker, absolutely flawless.. put me in on your list. I'am so tired of getting my crossover welded. i guess its a common problem. $100 everytime and this is the second time and spend hours waiting. so again let me know as soon as you start so I can order.

 

any update on this? is this going anywhere? How much is the price going to be? etc etc?

 

still in the works , but sorry , we have been busy moving https://www.yotatech.com/forums/f229/expansion-254984/ . We just doubled our space , and are still "setting up shop" .

headers are still aways away , but they are in the works . we now have our .DWG files and basicaly ready to water jet our flanges ..

not ready to commit to any pricing just yet


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Alrighty. Well, if i decide to keep my 4Runner and do a 3.4 swap. hopefully you'll have them done

 

still waiting!

 

slowly but surley .. they are coming


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quick question. will you be supplying the flange to bolt up to the new headers or should this be the factory flange? just thought the pipe would be bigger so there would be a need for a different flange.

 

we will be supplying the flange if needed .. maybe donut gaskets and hardware as well , but worried about costs ?

also .. just a little up date .. going slower then I had hoped , but progress is still happening . new tables being build right now , so hopefully some good updates soon


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you should offer the extras as a seperate kit so that you can maintain profit and still keep total cost low because not everyone will need the flange or gaskets.

 

im fining man! fining! must have headers! lol. updates?

 

bringing my truck to be professionally tuned soon and would love to have a set of headers on this bad boy... any word? dont want to tune this thing and you start selling headers 2 or 3 weeks later.

 

Slacker you're killing me! When can we get the headers???? I've got money burning a hole in my pocket!

 

THATS WHAT IM SAYING! lol

 

sorry fellas ..
we're smokin busy at the shop .. We have just aquired a block for "mock up" . but we are having some problems with the bends , There not what I want and up to standards . be assured , we are working on these , i'm just not going to bring "crap" to the market . hopefully will be a new product in the NEW year

Corey

 

Hey I admire that alot! Thanks for being an honest supplier.

 

i hopefull will begin my swap by the time you get some headers out, picking up my motor thiss week, gonna need someheaders to go with it