1992 305 to Lt1 carb
 

im getting a nice 92 rs auto and it comes with a running 94 lt1 out of a z28.
Im gona drive it around for awhile with the 305 while i get the lt1 ready to go.
I want to carb it for ease of instalation
i dont want ac so im gona get the delete pully.
get the intake
block off plate for the opti.
distributer
a decent cam
hearders
and probly run the 305 carb for awhile till i get cash for a nicer carb
any thing else i need to know?
most of the research im finding is for a standard swap not the carb

this is going to be a daily driver so im not lookin for insane power

Re: 1992 305 to Lt1 carb
 

daily driver? If it has the PCM and wiring, keep the FI and put the motor in, you won't regret it.

Re: 1992 305 to Lt1 carb
 

:yup: The carb will take away the "ease of instalation".

Carb on LT1 = more difficult installation.

Re: 1992 305 to Lt1 carb
 

well its a 94 motor.
what do i need to make it ork with the 700r4?
iv not found much info on that

Re: 1992 305 to Lt1 carb
 

If you're getting the motor with the transmission....keep it all together for the easiest of installation, if not....you can get a 4L60E at decent prices.

To get it to work with a 700R4, you need a '93 model TB, and a lockout kit for the torque converter, then to get the speedo to read right, you'll have to swap the reluctor ring to one from a 4L60E, which do a search for Firebat who did that and swore he would if he had to do it again, he would put in a 4L60E.

Re: 1992 305 to Lt1 carb
 

well iv still not made up my mind but i think i want to carb it still.
im on a budget, and once im actually ready to throw the motor in i want it to be relativly quick. the car is allready a carbed 305 so everything should pretty much bolt right back up to the lt1.
so if im thinking right if i do it this way all i will need is the intake frome gmpp and the ac delete and the opti block off?
iv also read that il have to get the later front cover to use the opti delete?
or can i keep the opti and cap the dist. hole on the intake and reprogram the FI codes in the ecm?

If you're on a budget, don't go carb'd.

Re: 1992 305 to Lt1 carb
 

Why do you say that?
everywhere i look people basically say the same thing but no ones backing it up? And how would it be harder to put in with a carb?
From what iv been reading id need more stuff to stay FI since my car is allready 305

Re: 1992 305 to Lt1 carb
 

Post a link to the GMPP intake

Finding an intake that fits LTx heads and has a hole for the dist is the hard part. Once thats taken care of, wiring it up should be similar to a SBC

If the EFI is already there then the engine is ready to go in. Thats why its easier than swapping to carbed. Your car being whatever makes no difference

Re: 1992 305 to Lt1 carb
 

Well, you have a price of 265.99 for the LT1 carb intake, p/n 24502592

you'll have to swap the timing chain cover to a '95 since the block off plate is for the large hole opti: can't find a price for it anywhere I have a part number of 1236760 for the plate, but even Scoggin-Dickey doesn't even show it anymore, it may not even be available. The part number for the timing chain cover is 10214196

the price for the distributor, coil etc as well

like five7 said, if on a budget, don't go carbed with it, plus it would run like crap with the CCC Quadrajet that is on the 305, so you would be out money for another carb as well.

Re: 1992 305 to Lt1 carb
 

I dont have a link to it but i know summit sells it for about 260.
iv never messed with FI before so im lost when it comes to it. iv messed with carbs my whole life. and from what im reading i need to do alot more than i would with the carb.
If someone can explain it to me better id stay EFI but i just dont get from the stuff that im reading on the swap. i think im getting a wireing haness with the motor but im not sure on that anyway.
id just get a gen1 350 but im tradeing a truck for the car and the lt1 comes with it so i might aswell use it.

Re: 1992 305 to Lt1 carb
 

There are aboaut 8-10 wires that you have to wire up for the motor to run, sure you'll have to put an electric fuel pump in and run new fuel lines to the engine compartment

find a TPI or V6 MPFI car and there's the fuel lines, pickup assembly for the fuel pump.

As for staying FI, it's more reliable, less of a headache to tune or do anything with, you don't have to worry about "is the timing right" since the PCM controls all of that and the air/fuel mixture so it's not running lean, or rich (since you're wanting to keep it stock anyway) and not to mention the driveablility of the car keeping it FI. 15 degrees outside? no problem, turn the key on, let the fuel pump prime and hit the starter. LT1s done right with the proper gearing can get up near 27-28mpg on the highway and still have plenty on tap when you hit the gas.

The motor was originally designed with FI in mind, that's what it will run best keeping it that way.

I guess I'm the opposite, I hate carbs, never been able to get them set right....either too lean or too rich and the cars just sucked at running....once I got into doing FI I wouldn't look at another carb again for a car, there are mid 9 sec 1/4 mile time LT1/LS1 that are still FI with a head/cam swap, a set of gears and using a laptop and a piece of software to maximize what you can get out of an engine....you can only go so far with a carb in that category.

I've been messing with carbs a bit, too. Rebuilt my first one in 1968.

I've had FI grocery getters, but my "performance" vehicles have always been carb.

I started my first FI swap last year. Don't get the wrong idea about it not being completed yet - I've had travel for work, family responsibilities (daughter getting married in another state, mother passing away in another state, son graduating in another state, little things like that), and spent most of my efforts last spring, summer, and fall keeping the race car running. Plus, the swap I am doing is WAAAAAYYYYY more involved that what you would be facing. I'm confident it'll be running soon.

Here's what's going on between carbs and me: I am a moderator on the Carburetor forum. I have three originally carb'd vehicles - One is the FI swap mentioned above (LS1/T56 going into an '82 Camaro); one is my first car, the '57 - I picked up an LQ4/4L80E that will be "souped up" and installed in it later (will stay FI); the third is my daily driver (also '82 Camaro), for which I recently picked up another LS1 w/4L60E (which will be "improved", but remain FI).

If this old dog can make the switch from carb to FI, then you can, too. A little time and learnin' now will produce many rewards when complete. You'll never regret it.