Momar

Ok, here is the deal. I might be able to pick up a Iron headed LT1 complete with all sensors and wiring out of a 94 Impalla SS. He wanted 750 for it but I asked him if he would go lower and he said that the lowest he could go was 650. After I explain this you tell me if it sounds like a good deal.

He lives in Central IL, and he said that he took the impalla on a trip to NC. He said that on the way back it developed a slight miss. He said after he got to town he was driving it and it started to smoke. He parked it and ended up picking up a LT4 and put in it. He said that when he pulled it that they realized that it had a pretty good leak on the back of the intake. He said that it appeared that it had been running onto the catalitic converter and burning and that is where the smoke was coming from. It has 104,000 miles on it by the way.

I was wondering if this sounds feasable? He said that I can pull the heads and check it out and I plan to. Is there anything I should look for. He said that there wasnt water in the oil. Does it sound like something else happened to it or do you think this is correct?

Another question would be how hard to find/how expensive will accessory brackets and pulleys be? I doubt it has them since he was replacing it with another motor. I am not going to be using air conditioning since it tends to get in the way of putting it in a thirdgen. I was wondering how well the Iron heads are compared to the Aluminum that the f bodies came with are. I plan on porting them, but what kind of power will they support compared to the Aluminum. Does anyone know where I can get flow numbers for the 2 stock?

Thanks

Ben

HybridZ28

The LT1 rear intake leak is pretty common. But still with 104K miles on the motor, do you really think it is worth 650.?

I would deff. rebuild it.

You will need accessories from a B or F body LT1.
Y body (vette)brackets work also but are hard to find and cost a $$$

You said he replaced the motor with a LT4, I wonder if he has the accessories brackets that came with the LT4, thats if it was a used replacement.

The Iron LT1 heads flow better then stock alum. LT1 heads. Yet the trade off is weight.

In the end it might be better to find a cheap running 9C1 LT1 caprice, I've seen them sell for a grand.

Momar

Well, I talked to the guy and he says everything is included including accessories, starter, wiring, sensors, intake, computerand everything else. I dont know that I could find a 9C1 car with the motor in decent shape for a grand around here. They always seem to want more and usually have enough miles on them that they would also need rebuilt.

Ben

HybridZ28

With all that, then it is worth 650. even if you have to milldy rebuild the motor.

With a stock F body cam and some PCM tunning your HP would be higher then a stock f-body motor, since the iron heads flow around 230cfm

But then a LT4 cam or cc305 would be a better setup

Riley's35089rs+

The distributor cap alone for the LT1 is 215.00...I'd say not a bad deal...get ready for some pricy parts....

Momar

Uh, LT1's dont have distributers.

Ben

Riley's35089rs+

go here WWW.autozone.com and punch in this part # and see what you come up with..
Unit Price: $152.99
Core Value*: $90.00
Part No.: 30-1832
Weight


Do a search for 94 camaro 5.7 v8 Distibutor

Riley's35089rs+

go here scroll to the bottom..http://www.automotiverebuilder.com/ar/ar99928.htm

Riley's35089rs+

GM had some problems with the early distributor due to both carbon tracking and moisture, so a new sealed distributor with a vacuum port was introduced on the iron-headed 265s and 350s in 1994 and used on all LT1s in 1995. The new distributor was located with a pilot shaft and driven by a pin, so both the cam and the gear were changed. The cam had a large, deep hole in the center for the pilot shaft and a longer dowel pin to drive the distributor.

Riley's35089rs+

oops

Momar

Are you talking about the opti spark? Yes, I know that is an expensive part. I searched autozones site for both the part number and for a distributer for a 94 camaro 5.7 and didnt find it either way. If you are talking about the opti, does that mean that the 94 Impalla motors had the vented opti? If so thats good, because that is a conversion a lot of people do because there is problems with them going out between 60 and 100 thousand miles.

Ben

Riley's35089rs+

You would have to check for.distributor cap at autozone.com.
anyway I'm new to the LT1 But I am learning.....alot of changes from the basic 350....here is my LT1/T56

Riley's35089rs+

and

Riley's35089rs+

one more

Riley's35089rs+

looks real good next to this.....Ok Im done Had to show off a little.....:lala:

HybridZ28

Yes the '94 up Impala, Fleetwood and Roadmaster LT1s had the newer vented opti.

I'm using a '94 Fleetwood vented one now, with 158K miles on it talk about running on borrowed time

But then oil, coolant and moisture kills a opti.

Mine was very clean and the car has an electric water pump now so no worries about coolant leak.

Momar

Well, we plan on putting a lt1 out of a 93 z28 into a thirdgen. My cousin just got the donor car recently and I was looking at stuff and we were wondering what this box is. It is on the passenger side. It appears to have wires running to the aldl connector and under the carpet possibly to transmission or shifter(t56). What all functions does this box have. Is it necisarry for the motor to run or for the gauges or what?

Also, I dont think that the one I am getting has the part of the harness from inside the car though. Will I need this stuff or can I make everything work without it?

Thanks

Ben

HybridZ28

'93's had a ECM rather then a PCM ... sure the box is not the ECM(looks just like the ECM in a 3rd gen)

So the '94 LT1 deal fell thru?

Momar

No, I am geting the 94. Also an added bonus, I did some research and it does appear that the impalas went to vented opti's in 94.

The 93 is my cousins. He also is planning the lt1 swap. He has a wrecked 93 z28 complete with LT1 six speed and 3.73 posi rear. As far as it being the ecm it does kind of look like it but I dont think that it has enough wires and also there is a computer mounted in the back passenger side of the engine compartment that I figure is the ecm. I just wondered if this box in the interior was going to be something that would need to be used or what it was for.

Thanks

Ben

Riley's35089rs+

The 1993 LT1 / T56 came standard with the 2.73,s optional 3.23,s after 94 they came only with 3.42's....Not to say someone didnt change them.....

Momar

They are richmond I believe. They are aftermarket. The posi was also replaced with one out of a 99.

Ben

Riley's35089rs+

so that tranny shouldn't have the 1-4 shift BS in it right? thats the only thing I dont like about the t-56 in the 94..I'm told there is a way to reprogram that ?

Momar

Well, my tranny is an auto so no(I would trade for your six speed lol). Seriously though there is something that is called a cags skip shift eliminator I believe. This allows you to shift normally through all of the gears.

Ben

Riley's35089rs+

guess I mixing up your swap with your cousins....I'll have to look into that eliminator...although I dont see the skip shift much..I drive fairly aggressivly...but it bugs the heck out of the wife.....So tell me, just curious, why would you go to sooooo much trouble for 275horses?

Momar

It wont be 275 horses when I am done with it for one, and I would like to be fuel injected. It will also be pretty unique in this area.

Ben

five7kid

iTrader: (14)

Why don't you PM Vader? He's got a pair of the beasts.

Momar

True. I never thought of that. I thought he had a 502 in one of them didnt he?

Ben

dans82bird

What distributor? it has opti spark! i guess you could call it a distributor

Riley's35089rs+

Read the post!!!!! Opti spark shows up as distibutor cap at some parts suppliers...and yes the LT1 does have a distributor...they changed it from the conventional type thats all........sheesh

Riley's35089rs+

Distributor is only referred to about 10 times.... ...I give up.

http://www.automotiverebuilder.com/ar/ar99928.htm

Momar

I looked into it some more(havent looked at your link yet) and the optispark is sometimes referred to as a distributer. You can get the complete thing with the cap/rotor for 200 if you shop arround. Even though it is called a cap and rotor it looks nothing alike. It actually works more like a position sensor than a distributer. Here is a link to a description of how it works. There is a link to a diagram from there too. http://csce.uark.edu/~jgbertr/rb/4th...html#opti_test

Ben