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 Post Posted: Sun Nov 08, 2009 9:53 pm 
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Amateur Racer

Joined: Thu Feb 08, 2007 11:00 pm
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Location: Rochester, NY
I see no problem in using the factory steel line. They are rated to way more pressure than EFI will produce. I would only worry about any rubber lines in the system.


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 Post Posted: Mon Nov 09, 2009 12:07 am 
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Location: Catalina, AZ
Reason I suggested replacement is if the line is rusted, it may not hold up to that pressure it could hold 26+ years ago.

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'92 Sierra - EBL/TBI-fed Vortec 383/700R4/3.08
'87 Fiero GT - 2.8/5-speed
'78 Malibu - Vortec 350/4-speed (for now)


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 Post Posted: Mon Nov 09, 2009 12:38 pm 
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Location: Rochester, NY
That is a valid concern. Definitely something you want to check.


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 Post Posted: Tue Nov 10, 2009 12:20 am 
 
What would be the advantage of using the LT1 if I was going to put a carburetor on it? I'm asking assuming the engine that's in the car can make plenty of power. I'm assuming that if I did the swap, and did it right, I'd have a more user friendly car with fuel injection. True?

Opinions welcome.


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 Post Posted: Tue Nov 10, 2009 1:20 am 
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If I read everything right in the past the Vortecs got their design from LT1 heads, so there may not be a huge advantage to running a carbed LT1 as opposed to a pair of Vortecs with a carbed intake.

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'92 Sierra - EBL/TBI-fed Vortec 383/700R4/3.08
'87 Fiero GT - 2.8/5-speed
'78 Malibu - Vortec 350/4-speed (for now)


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 Post Posted: Fri Nov 13, 2009 8:00 pm 
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Joined: Mon Nov 19, 2007 11:47 am
Posts: 341
Location: Chicago, Il
jthawk71 wrote:
Lets see costs... its a tough one to answer because there are fabricator guys and farm it out guys but since you said farm it out in your post Ill assume your the later Ill forget something Im sure but here goes,and oh it sure helps that you have the donor car, 1. Fuel sys about $1000(rock valley tank a/n lines rear exit kit)
2. air cleaner assy $100(jtr tubes and elbows)
3. wiring $900 ( using painless and making up c/f relays)
4. cooling $800 (use a fbody be cool, used twin fans new hoses)
5. crossmember, d/shaft $400(shorten d shaft,new crossmember)
6. exhaust $300
7. throttle cable $70
8. p/s $100 (a/n fittings hoses adapters using imp res.
9. crap I forgot and do dads + $2000
man thats over 5k thats sounds high, but there it is, the cool factor is way worth it tho. If it were me and I had the donor car I would do everything I could to keep cost down using everything I could from the imp, I explained that in the thread. Man was it worth it lt1 is a great motor It just plain hauls ### I would and will do it again.


If he has the complete donor car, he could shave 4500 from the 900 and have the factory harness reworked by Speartech. He could use his original radiator. He stated its a Caprice so theres no need for electric fans when the Caprices already have a clutch fan bolted to the engine. Use the fuel lines and pump from the Caprice with a junk yard 4.3 tank and sender. The power steering and everything else ties together without any expensive parts. And the 450 he saved on the harness could be used for a set of headers and an exhaust system.

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Staying true to the all mighty BOWTIE. 94'BBB Imp-SS-5.3 bored to 5.7 custom cam, Powerdyne SC, 4L65E, 3.73's; 78' Malibu-396ci LT1/TH400/3.90's and 250hp shot; 80' Caprice Landau Coupe 346ci LS1/4L60E/3.73's; 89' Silverado GM crate 350/330hp Vortec/700R4/4.11's; 96 Express 1500 turtle-top Conv-van stock 5700Vortec/4L60E.


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 Post Posted: Sat Nov 14, 2009 7:09 am 
 
Is a suitable fuel tank available for a station wagon? I have not found one.


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 Post Posted: Sat Nov 14, 2009 7:14 am 
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Wagons were never built with EFI, so you'll need to come up with another solution. Some have the tank sumped, some run a fuel cell that's already sumped.

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'92 Sierra - EBL/TBI-fed Vortec 383/700R4/3.08
'87 Fiero GT - 2.8/5-speed
'78 Malibu - Vortec 350/4-speed (for now)


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 Post Posted: Sun Dec 13, 2009 10:27 pm 
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Daily Driver

Joined: Tue Jul 22, 2008 9:03 am
Posts: 48
Location: Pasadena TX
Perhaps a tank from the 86/87 El Camino. They came with a TBI set up. The tanks are available, but the sender that contains the in tank pump is hard to find.


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 Post Posted: Sun Dec 13, 2009 10:36 pm 
 
The El Camino tank does not swap to the wagon. The wagon has a trunk in the back sharing space with the tank. They aren't close in shape.
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 Post Posted: Mon Dec 14, 2009 3:52 pm 
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Weekend Racer

Joined: Tue Dec 08, 2009 6:44 pm
Posts: 57
Location: Great Bend, Kansas
I am doing a 79 Malibu with the LT1 out of a Firebird. I wonder if the Caprice serpentine system will fit better than the Fbody set up and what to look for when buying one of these. I really need to be sure, I am in Kansas and the yard I am dealing with will have it shipped in but all sales are obviously final. Thanks a bunch in advance for you help!!!


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 Post Posted: Wed Mar 14, 2012 11:02 am 
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Joined: Thu Mar 08, 2012 3:27 am
Posts: 6
I put a lt1 in a car where it didn't belong (90 Nissan 240sx).
I used an accel dfi 6.0 computer that I bought off of eBay ,It came with main harness connector. Then I used stock harness to build my own. The engine came from a roadmaster with brackets. The water pump is about half the cost of the f body unit.

It can be done reasonably with a little searching.


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