LTX --> LSX Conversion Sticky

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Aug 4, 2015 | 09:55 AM

#201

93Z2871805

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Quote:

Originally Posted by MrSlinger85

Any of you running LS3 top-ends with Cable throttle bodies? What did you do to mount the cables on the LS3 throttle bodies, and what cables did you use? LS1 brackets don't look like they'll mount. Thanks.

I made my own bracket. I just used some angle iron and used the front 2 holes on the manifold to bolt it down.

Oct 30, 2015 | 01:47 PM

#202

GREAT_WHITE

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From: TX

Issue I'm having at the moment is after everything is in the car the driveshaft is to long , can anyone she'd any light on this for me.
1996 Trans am
6.0 swap
LS 4l60e
UMI tubular k member
Moser 12 bolt

Oct 30, 2015 | 10:50 PM

#203

deuce4935

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Sounds like cutting of the driveshaft is required

Oct 31, 2015 | 08:39 PM

#204

GREAT_WHITE

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From: TX

Quote:

Originally Posted by deuce4935

Sounds like cutting of the driveshaft is required

Believe it or not I found that there can be some differences in the driveshafts , got a shaft from a friend that came out of a 98-02 and ends up being just right

Dec 22, 2015 | 01:11 AM

#205

LT1BADZ

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I plan on using these mounts if I can't find a stock LS1 k-member local. Cheaper than going with a tubular K-member.

https://www.holley.com/products/ls_p...ts/71221002HKR

Dec 22, 2015 | 06:18 AM

#206

Gunters96lt1

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Quote:

Originally Posted by LT1BADZ

I plan on using these mounts if I can't find a stock LS1 k-member local. Cheaper than going with a tubular K-member.

https://www.holley.com/products/ls_p...ts/71221002HKR

Anyone know if these will fit tubular LTx k-member?

Dec 22, 2015 | 06:01 PM

#207

93Z2871805

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Quote:

Originally Posted by Gunters96lt1

Anyone know if these will fit tubular LTx k-member?

As long as the tubular one uses factory clam shell style, I would imagine so.

Dec 23, 2015 | 08:42 AM

#208

Gunters96lt1

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Quote:

Originally Posted by 93Z2871805

As long as the tubular one uses factory clam shell style, I would imagine so.

Yep that's what Im using now. Thanks!

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Dec 23, 2015 | 11:01 AM

#209

RGSS

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Quote:

Originally Posted by Gunters96lt1

Anyone know if these will fit tubular LTx k-member?

Those mounts are supposed to be bolted to the OEM LT1 K Member.
I dont see how you could bolt them on a tubular K member.

Dec 23, 2015 | 08:17 PM

#210

93Z2871805

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Quote:

Originally Posted by RGSS

Those mounts are supposed to be bolted to the OEM LT1 K Member.
I dont see how you could bolt them on a tubular K member.

If they use a mount that has the factory style clam shell then it would be the same as bolting them on a factory LT1 K-member.

Dec 24, 2015 | 07:21 PM

#211

sierravmax

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From: Lexington, S.C.

Quote:

Originally Posted by 93Z2871805

If they use a mount that has the factory style clam shell then it would be the same as bolting them on a factory LT1 K-member.

Yep all tubular k-members do not come with built in mounts.

Dec 25, 2015 | 09:50 AM

#212

93Z2871805

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Quote:

Originally Posted by sierravmax

Yep all tubular k-members do not come with built in mounts.

Some come with built in pedestals like the MWC ones.

http://www.midwestchassis.com/k-members-crash-bars.html

Dec 25, 2015 | 10:21 AM

#213

sierravmax

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From: Lexington, S.C.

Quote:

Originally Posted by 93Z2871805

Some come with built in pedestals like the MWC ones.

http://www.midwestchassis.com/k-members-crash-bars.html

Apparently I miss understood what you were saying. I thought at one time I remembered seeing that tubular k-members were being made where you had to reuse the factory pedestals. I am very familiar with built in pedestals as I used the UMI roadrace ls1 k-member for my swap.

Dec 25, 2015 | 10:31 AM

#214

93Z2871805

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Quote:

Originally Posted by sierravmax

I believe you're right, I think for awhile only places like Racecraft, MWC, Spohn and Burkhart Chassis were offering ones with the built in mounts (LS1 only), the rest used factory bolt on style ones. However I don't recall seeing a built in LT1 mount, but in all fairness it's been at least 5 years since I've looked, lol.

Nov 28, 2016 | 02:28 PM

#215

Gunters96lt1

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Quote:

Originally Posted by LT1BADZ

I plan on using these mounts if I can't find a stock LS1 k-member local. Cheaper than going with a tubular K-member.

https://www.holley.com/products/ls_p...ts/71221002HKR

For anyone curious I bought these mounts and they worked great. I have them mounted on a PA Racing tubular kmember. The motor is right where it should be (not pushed back like some other mounts).

Last edited by Gunters96lt1; Dec 1, 2016 at 10:23 AM.

Nov 28, 2016 | 04:08 PM

#216

sierravmax

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From: Lexington, S.C.

Quote:

Originally Posted by Gunters96lt1

For anyone curious I bought these mounts and they worked great. The motor is right where it should be (not pushed back like some other mounts).

Were you able to retain the Lt1 steering rack?

Nov 29, 2016 | 08:11 PM

#217

Gunters96lt1

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Quote:

Originally Posted by sierravmax

Were you able to retain the Lt1 steering rack?

No I wasn't. But I am running forward truck manifolds. I guess I should have said that. I think longtubes might fit though.

Nov 29, 2016 | 09:50 PM

#218

RGSS

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Quote:

Originally Posted by Gunters96lt1

For anyone curious I bought these mounts and they worked great. The motor is right where it should be (not pushed back like some other mounts).

This is great information. I wish they would have been out by the time I did my conversion. After runnig tubular K members on both my Lt1 and LS1 F bodies I very much appreciate the OEM K member for its structural integrity and rigidity. Alignment is much easier and precise too. I would have chosen this route for sure.