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Old 09-23-2017, 08:20 PM   #1
Dino0987
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Default 84 chevy corvette no engine.

Hello everyone I'm new here and i want to get some ideas from everyone. I just picked up a 84 c4 with no engine. I would like to know what i can swap in without going through hell. I want little bit more horse power. Maybe the stock engine with cams and headers and getting rid of the crossfire system? Or another engine swap? Any ideas would be appreciated. Thank you everyone
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Old 09-23-2017, 08:37 PM   #2
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any small block chevy will fit
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Old 09-23-2017, 08:50 PM   #3
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Would that be just a drop in or any mods needs to be done? Thank you for the reply
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Old 09-23-2017, 09:07 PM   #4
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Would that be just a drop in or any mods needs to be done? Thank you for the reply
depends on what year or generation your talking about and what cylinder heads it uses for accessory mounting and what fuel delivery your going to use
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Old 09-23-2017, 09:14 PM   #5
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the engine itself is a drop in. Loes of small details to do if you want it street driven. Race? , drop it in and go.
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Old 09-23-2017, 09:31 PM   #6
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Originally Posted by Dino0987 View Post
Would that be just a drop in or any mods needs to be done? Thank you for the reply
Unless you keep your Cross Fire system you will have significant electrical mods and computer/sensor changes.

Now, it has been done, but it won't be a plug and play.
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Old 09-23-2017, 09:42 PM   #7
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Put an LS in it!
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Old 09-23-2017, 09:46 PM   #8
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Quote:
Originally Posted by billschroeder5842 View Post
Unless you keep your Cross Fire system you will have significant electrical mods and computer/sensor changes.

Now, it has been done, but it won't be a plug and play.
A tbi truck engine will run off of the crossfire harness & ecm. You can even use a small cap distributor.
To get it to run with a carb, all you need is 12v to the hei.
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Old 09-23-2017, 10:19 PM   #9
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Thank you all for the replies. Im trying to stay away from electrical. I am very mechanically inclined but when it comes to electrical im alittle iffy. I want more of drop in and build on top of it.
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Old 09-23-2017, 10:21 PM   #10
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I want to get over 300 hp or more. There's no engine right now. Im trying to get ideas before i start buying stuff
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Old 09-23-2017, 10:29 PM   #11
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What if i was to build on top of the original c4 engine? Cams, headers, ecm chip and etc etc?
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Old 09-23-2017, 10:47 PM   #12
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In a recent magazine, they had an 84 crossfire with some mods. Not extravagant but reasonable. It was into the 11 sec 1/4 if I remember right. Rear gear, Cai, nitrous are some of what I remember reading.

There is also a large crossfire section in c3 that covers much of what you may encounter. I have used this info for my c3 croosfire.
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Old 09-23-2017, 10:56 PM   #13
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Thank you for the reply. I was thinking getting the same engine build that up with an fuel pump from 85 corvette. Nitrous sounds like a good idea. What about Cams?
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Old 09-24-2017, 07:23 AM   #14
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the crossfire system uses around the same fuel pressure as a carb. That 85 uses a FI fuel pressure of around 35 , the CF only around 15 or less. That means you would have to get an adjustable fuel reg or gas will over power your carb. That's if I remember right.
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Old 09-24-2017, 11:27 AM   #15
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Thank you for the replies. I want to be able to make some horsepower over 300 hp but i dont want to go through ls swap. Its not going to be a daily driver. There is no engine in it right now
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Old 09-24-2017, 11:56 AM   #16
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Quote:
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Put an LS in it!
Put an LT in it!
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Old 09-24-2017, 11:59 AM   #17
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Would i need to change the wiring harness?
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Old 09-24-2017, 12:24 PM   #18
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Dino... Can you give an honest assessment of your mechanical skill level as swapping out your L83 for something different will be a trick---- unless you pay someone.
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Old 09-24-2017, 12:31 PM   #19
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I can do all of the mechanical stuff with no problem at all. When it comes to wiring i dont know too much thats why i want to stay away from doing ls swap. If i had a guide for wiring i can but i looked everywhere and theres no real guide
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Old 09-24-2017, 12:46 PM   #20
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Quote:
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Would i need to change the wiring harness?
I bought a standalone harness for the LT1 and wired it into my factory harness so the gauges would work correctly. You will need to change the harness for any engine unless you are going back the the L83. I liked going LT1 in my 84 as the LT1 was a factory engine from 1992-1996 so there are parts and factory parts at that. Going LS is very expensive. People around me want WAY too much money for an LS1. 2k-4k for 120k mile examples then on top of that extreme money for the special swap parts. No thanks... Maybe if I got the actual LS engine cheap it would be fine but I refuse to pay what people are asking for LS engines around me. I picked up my LT1 complete for $75. No joke.
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