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Subframe connectors before LS Swap

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Old May 11, 2019 | 07:27 PM
  #1  
whostorm05's Avatar
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From: Indianapolis, IN
Car: 1991 Trans Am
Subframe connectors before LS Swap

Hi Everyone,

I have a 91 Trans Am that I eventually want to do an LS Swap to. The car could really benefit from having subframe connectors installed. Is there a good reason why I should wait until after the swap to install the SFC's? Will it make anything with the swap harder if I get them installed now? During the swap the car is going to need all the related work done as well, exhaust, fuel tank, suspension, etc.

Is there a general consensus for the best subframe connections for these cars that you can actually still buy? I'm guessing weld in would be better?
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Old May 12, 2019 | 04:32 PM
  #2  
punkmaster98's Avatar
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From: Jackson NJ
Car: 1984 T/A
Engine: LQ4
Transmission: T56
Axle/Gears: Ford 8.8 4.10 gears
Re: Subframe connectors before LS Swap

Is your car already running and driving? IF so you can get the SFC install before you swap. Depending on what brand you get your factory exhaust routing may interfere. I have BMR inner sfc on my car.
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Old May 12, 2019 | 05:37 PM
  #3  
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From: Indianapolis, IN
Car: 1991 Trans Am
Re: Subframe connectors before LS Swap

Yeah, car still has the stock setup and does run/drive. Not great, but it drives. lol Are these the ones you : https://www.hawksmotorsports.com/bmr...ors-bolt-weld/

Satisfied with them?

Anyone fans of Detroit Speed or UMI SFC's?
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Old May 13, 2019 | 09:00 PM
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84 1LE's Avatar
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From: Oyth
Car: 89RS vert
Engine: Erod
Transmission: 4L65e
Axle/Gears: BW, 3.27
Re: Subframe connectors before LS Swap

Its never too soon to install SFCs.I have Global west perimeter & a very old (pre) Alston inner set, yes two sets on my vert.
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Old May 13, 2019 | 11:00 PM
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From: Jackson NJ
Car: 1984 T/A
Engine: LQ4
Transmission: T56
Axle/Gears: Ford 8.8 4.10 gears
Re: Subframe connectors before LS Swap

Originally Posted by whostorm05
Yeah, car still has the stock setup and does run/drive. Not great, but it drives. lol Are these the ones you : https://www.hawksmotorsports.com/bmr...ors-bolt-weld/

Satisfied with them?

Anyone fans of Detroit Speed or UMI SFC's?
Yes thats what i have. the UMI ones i had on my old car as well. they are great. I am not familiar with the DSE sfc
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Old May 14, 2019 | 10:51 AM
  #6  
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Car: 92 Firebird
Engine: 4.8 LR4
Transmission: T56
Axle/Gears: 3.45 9 Bolt
Re: Subframe connectors before LS Swap

My general advise it to always make the car better before making it faster. So SFC's and Brakes are first priority, then suspension, then anything else after that

Oh, and DSE SFCs are a great design and do not compromise ground clearance or anything else, but they are a lot more work to install than anyone else's. I put them in my car and would recommend them, if you can do the work yourself.
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