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01-16-2009, 01:58 AM
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#1 |
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Registered User
Join Date: Jan 2007
Location: pittsburg kansas
Posts: 894
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lsx carb swap
Alright guys so i have been thinking about doing a lsx swap to my 79 trans am. My question to any and all out there, is if i get a lsx motor and choose to carb it, do i need to worry about the computer that originally controlled the motor and all its sensors? Also is it possible to bolt up to a th350 or 400th?
Ideally im tryin to get it done without have computer contolled items on the motor trans....... just tossing up the idea... 
Last edited by 70stroker; 01-16-2009 at 02:01 AM. |
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01-16-2009, 08:59 AM
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#2 |
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Registered User
Join Date: Feb 2001
Location: Wetumpka, Al, U.S.
Posts: 8,892
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Re: lsx carb swap
It can be done but I would keep the injection.
__________________
Kevin Special Thanks to All who have helped on the TRUCK! My Pass Time Show http://s129.photobucket.com/albums/p...Chapter1-0.mp4 So Far my best Times are: Motor only: 6.44 1/8 @ 104.13 10.39 1/4 @ 125.83 Nitrous Times: 5.785 1/8 @ 118.65 with a 1.336 60ft 9.168 1/4 @ 142.58 with a 250 shot dead out of the hole! |
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01-16-2009, 10:47 AM
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#3 |
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On a budget like Fred Sanford
Join Date: Oct 2005
Location: Topeka, KS
Posts: 2,031
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Re: lsx carb swap
All you'd need to run a carb is an ignition module (MSD makes one) to fire the stock coils. The only sensors you keep are the crank and cam position sensors. A th350 or 400 will bolt up with a dedicated flexplate.
__________________
'85 Silverado swb: 383 stroker, 10.5:1, vortec heads, 232/238 roller cam, RPM air gap, performer 750 carb, stainless longtubes, 3" duals/super 44's, T56/4.11 383ci build / exterior refresh thread '98 Camaro z28: 370ci twin turbo 370ci build '01 Tahoe LT 4x4: 5.3, longtubes/ory, magnaflow duals, custom tune....wife's DD |
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01-18-2009, 06:49 PM
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#4 |
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Registered User
Join Date: Nov 2007
Location: Bay Area, Ca
Posts: 2,841
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Re: lsx carb swap
You could spend big money as well and put a belt drive distributor on it. Personally, I would keep the injection and individual coils, retaining the factory computer. With injection/timing controls it gives you the ability to adjust timing and fuel in 400rpm increments. You can dial it in extreamly well and it is super easy..
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------Motor---------------Bottle 60'---1.53---------------1.41 1/8---6.58 @ 105.92----5.87 @ 118.41 1/4---10.38 @ 126.97----9.24 @ 142.49 |
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