Pro's & Con's

[megaladon6]

first off: there is no power difference between carb and EFI. BUT, EFI tunes for condition, both internal and external, a few times a second. if you want that on a carb, buy a midget.

SBC
pro: dirt cheap for a basic motor. most parts are cheap. there is tons of info on how to build and tweak them.
basically, it's a chevy!
cons: even the newest are really 50yr old tech, limited stock power, really crappy emissions controls=low power

LS
pro: very good power vs cost, even stock they can be retuned for much more power, better emissions, very good technology--especially the heads, bottom end can handle MASSIVE power
cons: harder to diagnose, more expensive to upgrade
basically it's a porsche

i still say that putting a carb on an LS is the stupidest thing you could possibly do. the money you'd have to spend in an intake would be better spent on bigger injectors and tuning.

 

[crazydavez28]

The great thing about getting an entire engine, transmission, computer and harness package ... there is no tweaking or fine tuning (until you start mod'ing the engine) Just plug and go

BAM right on! and the fuel/maintenance savings will cover any extra expense on the install.

Once you get it mechanically installed everything should be easy. I seriously just connected four wires from the ignition switch to my engine harness and everything runs as it should. It's essential to establish that baseline before modding. I hope the next swap I do includes something with VVT and/or DOD. Some ppl think that EFI is gold plated and expensive. The trick is to troll craigslist till you find that amazing deal.

 

[drogg1]

Or maybe have both at the same time!

HAHAHA now that is the what I'm talkin about

 

[edwing602]

I would go with the injected ls i love driving mine, its reliable great on gas and hauls *ss :lol:

 

[motorholmes]

Looks like you might get this one complete for $500:

http://phoenix.craigslist.org/wvl/pts/2739678259.html

 

[-83MONTESS-]

I'm not really sure you can say that it's always a bad thing to use a carburetor. Just because a technology is available doesn't make it superior in every situation. Especially considering you can make the same power with both setups.

Also, whats so wrong with doing things the less advanced way? You can buy furniture but some people still make their own. They may not equate exactly but my point is I don't see the concrete reasons to negatively consider using a carburetor as a step back.

Many people who know how to setup, wire, program, and tweak a fuel injection system wouldn't know the first thing about how a carburetor works or how to tune one. I like to view them as separate technologies with each having its own positives and negatives.

Im not saying that its a bad thing to use a carb on it, I use one myself but if the technology is already there it just seems easier and smarter to use that. It just seems more logical and practical to me. I have always shot around the idea of putting an LS engine in my monte but im broke so the 400 stays :lol:

 

[megaladon6]

Putting a carb on an LS is like putting a propeller on a jet engine. Sure it works, but it's really a step back.

 

[LSCustoms]

i based my decision to go with a carbed ls3 on several things. 1 liked the sound of 515hp as apposed to 430hp. i also was trying to avoid drive by wire. i really wanted to run the 200 4r which wouldn't work with drive by wire. i couldn't find any way to adapt the tv cable to a drive by wire system. i have had a couple 6l80 a6 transmissions which i really didn't like and would prefer not to use. i guess if the carb doesn't live up to my expectations i will have to go to injection. i have a feeling it won't be a problem. i wasn't building this car for gas mileledge.

I'm not really sure you can say that it's always a bad thing to use a carburetor. Just because a technology is available doesn't make it superior in every situation. Especially considering you can make the same power with both setups.

Also, whats so wrong with doing things the less advanced way? You can buy furniture but some people still make their own. They may not equate exactly but my point is I don't see the concrete reasons to negatively consider using a carburetor as a step back.

Many people who know how to setup, wire, program, and tweak a fuel injection system wouldn't know the first thing about how a carburetor works or how to tune one. I like to view them as separate technologies with each having its own positives and negatives.

x2

why couldn't you just convert to a cable tb and use the bowtie overdrives kit for the older transmission

and i love carbs, but also love injection, it may be easier to tune a carb'd motor, or increase fuel etc, but not a prob with injection either... set everything up right and your good (ie. bigger injectors, better regulation, etc)