LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

carb on a lt1? what has to be done?

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Old Apr 24, 2005 | 09:24 PM
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billmacomber's Avatar
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carb on a lt1? what has to be done?

I know there already is discussions about putting a carb on a lt1 but I want to know what is involved what new parts do you need other than the intake witch is in summit part #NAL-24502592 and a carb most likely a 650dp but what else distributor? What about the opti spark? And all the electronics will every thing else in the car work with the engine disconnected.

Im asking because I have a 1993 v6 camaro but I have acquired a 6speed tranny and an lt1 long block from a police car I want to see what my options are but I know baying new injection computer and harness is way out of my budget.
Old Apr 24, 2005 | 09:40 PM
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Re: carb on a lt1? what has to be done?

umm distributer, hardend oil pump drive shaft, the manifold , carb, lines, wiring, spark plug wires... all i think off right now
Old Apr 24, 2005 | 09:50 PM
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Re: carb on a lt1? what has to be done?

Im in the process of putting a carb on my LT1. First of all don't let the people on this site discourage you from doing this. You need to do away with the opti-spark and buy a msd distributor and ignition. Also I would suggest you go with a Holly 750 DP or if you want serious HP, Holly just came out with a 750 dominator for Prostreet cars. It would go great on a very mildly built LT1. Also, a bigger fuel pump would tie this together nicely. A 3.73 or 4.10 rearend goes well with a M6. But Im only sixteen so if my young opinion scares you, ask someone else but i probably have more knowledge than some of the people on this site. Esspecially on carburated motors.
Old Apr 25, 2005 | 05:08 PM
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Question Re: carb on a lt1? what has to be done?

what about the timing chain cover you take the opti right so there is a hole in the cover what do you do. just get an old style cover?
Old Apr 25, 2005 | 06:28 PM
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Re: carb on a lt1? what has to be done?

you just plug the hole with a freeze plug the correct size, same type of thing i did when i put the elect water pump on my 94
Old Apr 25, 2005 | 06:58 PM
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Re: carb on a lt1? what has to be done?

That project sounds like a lot of fun, good luck with it, sorry, I have no additional input, other than curious if the transmission requires usage of any additional computer wiring, or anything like that, such as, many of the LT1 components are computer-aided, and if you simply eliminate those when utilizing a carburetor. Fill me in as well, I'm a little curious as to what is actually required to do this swap, and if others with low-cost builds or at least within reason have done well with the carb setup vice SFI.
Old Apr 25, 2005 | 07:02 PM
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Re: carb on a lt1? what has to be done?

i think you will pay almost just as much for all the parts to convert to a carb setup, then you would in buying a used Fbody wiring harness, and pcm. They arent that expensive.
Old Apr 25, 2005 | 07:19 PM
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Re: carb on a lt1? what has to be done?

most of my frinds are car freeks we all have our conections and spare parts like a fue 350 turbo tranys i think it should bolt up with a new tranny crose member some one corect me if im wrong and a fue used carbs i can use and also a Distributor or two. also the motor i have is free and better than a stock lt1 in a z28 its the interceptor from a cop car a little better cam and a little more compresion. i know this is not the place to ask i should probly try the v6 to v8 engine swap page but what is the diffrence in the v6 k-member compared to the v8 and also the motor mounts thanks
Old Apr 25, 2005 | 07:28 PM
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Re: carb on a lt1? what has to be done?

Originally Posted by billmacomber
most of my frinds are car freeks we all have our conections and spare parts like a fue 350 turbo tranys i think it should bolt up with a new tranny crose member some one corect me if im wrong and a fue used carbs i can use and also a Distributor or two. also the motor i have is free and better than a stock lt1 in a z28 its the interceptor from a cop car a little better cam and a little more compresion. i know this is not the place to ask i should probly try the v6 to v8 engine swap page but what is the diffrence in the v6 k-member compared to the v8 and also the motor mounts thanks
If you want to think the LT1 in the cop cars are any different, keep thinking that, but just to let you know they aren't.
Old Apr 25, 2005 | 07:29 PM
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Re: carb on a lt1? what has to be done?

Where are you getting your info at? A cop motor i believe is the same as a regular caprice/impala motor all of which have less compression than the Fbody versions. I believe they are rated at 265 while Fbodies are rated at 275. It sounds like a lot more work to me to convert to carb then it would be to just get a wiring harness and pcm. I think you can get wiring harnesses for about $200ish, and i've personally bought pcm's for $50 several times and best of all it all bolts in and works.
Old Apr 25, 2005 | 07:50 PM
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Re: carb on a lt1? what has to be done?

Originally Posted by billmacomber
most of my frinds are car freeks we all have our conections and spare parts like a fue 350 turbo tranys i think it should bolt up with a new tranny crose member some one corect me if im wrong and a fue used carbs i can use and also a Distributor or two. also the motor i have is free and better than a stock lt1 in a z28 its the interceptor from a cop car a little better cam and a little more compresion. i know this is not the place to ask i should probly try the v6 to v8 engine swap page but what is the diffrence in the v6 k-member compared to the v8 and also the motor mounts thanks
Where did you hear that a b4c camaro had more compression and bigger cam. They did have larger brakes and suspension work.They had larger alt. and such but there was no engine work to make them "faster". Click this link for b4c info.
http://www.camarosource.ca/main_new_...police_pkg.htm
Old Apr 25, 2005 | 07:53 PM
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Re: carb on a lt1? what has to be done?

It's not that bad... intake, carb, distributor, low psi fuel system or at least a good bypass regulator, & some other odds & ends....

You can plug the hole for the opti with a freeze plug or buy the plug GM sells for around $50... Heck if youre on a low budget or are lazy you can even leave the opti on there disconnected. Not sure off the top of my head what you will need to keep your speedo working though... Personally I would get a LT1 harness & use all factory parts to put it together like a Z28 would have been... but that's just my opinion.

There's some pics of my 79 in various states of disrepair & uncompletion on the page linked below... it's three colums wide... so scroll to the right

http://joe.3h.com/photo.html
Old Apr 25, 2005 | 07:58 PM
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Re: carb on a lt1? what has to be done?

Originally Posted by 94zgreenmachine
Where did you hear that a b4c camaro had more compression and bigger cam. They did have larger brakes and suspension work.They had larger alt. and such but there was no engine work to make them "faster". Click this link for b4c info.
http://www.camarosource.ca/main_new_...police_pkg.htm
I don't believe they have larger brakes. I did see it said they had 4 wheel disc and anti-lock brakes but all Z's have that. I've heard the 1LE had better brakes but i don't know if its true or not.
Old Apr 25, 2005 | 08:12 PM
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Re: carb on a lt1? what has to be done?

Originally Posted by Z95m6
I don't believe they have larger brakes. I did see it said they had 4 wheel disc and anti-lock brakes but all Z's have that. I've heard the 1LE had better brakes but i don't know if its true or not.
I searched for almost an hour before posting. I read many sites but decided on the link cause it seem to cover most model years. There is a ton of info on the 92 b4c Camaros. It could be that I read the earlier model (pre-4th gen) cars came with larger brakes, but I did read it somewhere. I would guess ,at best ,the car got the 1le brakes.
Old Apr 25, 2005 | 08:15 PM
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Re: carb on a lt1? what has to be done?

Originally Posted by Z95m6
I don't believe they have larger brakes. I did see it said they had 4 wheel disc and anti-lock brakes but all Z's have that. I've heard the 1LE had better brakes but i don't know if its true or not.
Just found the site. Read down a bit on the link. http://www.camarosource.ca/php/camar....php?year=1989

They say the 1le brakes were adapted from the Corvettes. I know the brakes were upgraded from the factory with the 93 model year and there still was a 1le option. Now as to weather the brakes were larger at this point, I don't know. I'll dig a bit more, but I think we all agree, there is NO engine mods to the poilce cars.



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