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What does it take to go th350

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Old 07-17-2005, 08:32 AM
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Default What does it take to go th350

What does it take to install a TH350 in a 2002 f-body? Can someone give the complete process? Thanks
Old 07-17-2005, 11:27 AM
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auto or 6 speed?
Old 07-17-2005, 04:48 PM
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Tranny itself 800+
torque converter specifically for that application 400+
98 flex plate or a TCI SFI flex plate <179
BMR t-350 crossmember 179
Depending on the output shaft length, a new driveshaft <400
Shifter and custom installation 100+
Tranny cooler would be a good ieda 100+
Pedals if you dont have an auto already.
Speedo ring and sensor if you get the right housing(or the free ABS speedo creation) <150
If you dont want ses lights, some computer work by either you or a shop

I did a complete converision for about 2,700(ouch i hate adding stuff up like that!)
Well, i guess 1400 out of pocket after selling the built 6 spd.

posted by spdfreakls1 not nossboy

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Old 08-02-2005, 01:12 AM
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Originally Posted by NosboySS
98 flex plate or a TCI SFI flex plate <179

What is the reason you need the 98 flexplate?
Old 08-02-2005, 01:59 AM
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Originally Posted by Formulized94
What is the reason you need the 98 flexplate?
it has two sets of holes one for a regular LS1 converter and one set for the old school converters ie th350/th400.
Old 08-02-2005, 07:40 PM
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My th350 has a 9" tailhousing, the stock aluminum driveshaft fits perfectly

You might need a torque arm adapter. I bought B&M's 30299 piece, it worked fine. If you have a chasis mounted torque arm you won't need it

The biggest problem I ran into was the shifter & linkage. Still trying to tweak it to work 100% correctly
Old 08-02-2005, 11:21 PM
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Originally Posted by Strahley
The biggest problem I ran into was the shifter & linkage. Still trying to tweak it to work 100% correctly

My buddy(nossboy here) had the same problem, some gears were perfect, when he got to the other side, it was off, never got it perfect. My mega shifter in mine didnt really need any adjustment. 30 seconds. It seems to be hit or miss. <Y biggest problem was waiting 5 weeks for BMR to send me out a crossmember, and the driveshaft guy making it too long lol.

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Old 08-02-2005, 11:25 PM
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I bought a shorter linkage, be here Thursday. The one I have now is 4 foot, it's WAY too big. I have to loop half of it around the crossmember! The one I bought is 2 foot, I should be able to make it a straight shot. If not, there's a guy local here who can tweak it for me. Wish me luck
Old 08-03-2005, 12:06 AM
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thats weird my B&M pro stick works perfect with the cable it came with. i think it was 4 feet.
Old 08-03-2005, 01:04 AM
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I have been hearing something about the th350 torque converter pilot bushing not fitting into the ls1 crank? is this so?
Old 08-03-2005, 01:49 AM
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Originally Posted by Formulized94
I have been hearing something about the th350 torque converter pilot bushing not fitting into the ls1 crank? is this so?
Yeah the regular 350 bushing is too short. when you get your converter just tell them its going in an LS1 and they will make the bushing longer so it will fit.
Old 08-03-2005, 10:07 PM
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is there anything to do when i already have a standard th350 converter that i want to use?
Old 08-03-2005, 10:21 PM
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Originally Posted by Formulized94
is there anything to do when i already have a standard th350 converter that i want to use?
yeah there is some spacer that goes between the converter and the flywheel. it comes with longer flywheel bolts too.
Old 08-03-2005, 10:25 PM
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www.400raptor.com about half way down the page
#LS1-700. Crankshaft spacer to install an early type TH400 / TH350 transmission on a LS1 type motor. Six longer flywheel bolts included. The LS1 flywheel is reused. The flywheel goes on first then the spacer. The torque converter bolt holes in your flywheel must be elongated to fit your non-LS1 torque converter bolt circle. Cost $75.00
Qty 12345




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