1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Will a 79 engine fit into an 80?

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Old May 17, 2002 | 04:03 PM
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Will a 79 engine fit into an 80?

The only thing I want to put into my 80 is the engine itself. I want to know if the engine will fit the 5 speed tranny, and also bolt right in. I should have probably searched first, but I really didn't know what to type in. Thanks.
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Old May 17, 2002 | 04:22 PM
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Hey..the engine will bolt right in......

but considering the 79 engine is on points...and the 80 has these seperate igniters...

do what i did....

take your 79 engine, put in a later model dizzy..(82 and up)..with electronic ignition..and do the conversion..(its not really that hard..just some different wiring....)

the tranny will bolt right up no probs...

does anyone have the link for the conversion from points to electronic??

Hope it helps....

Paul
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Old May 17, 2002 | 05:50 PM
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I just yanked an engine outa my 79...and stuck it into the 80...... it bolted right up to the 80 trans.....

And what I did was just leave the 80 distributer with the 80.... and stick it in the 79.... and it works perfect.....


LATERZ, Andrew
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Old May 17, 2002 | 08:20 PM
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Upgrade the ignition and you're set.
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Old May 17, 2002 | 09:52 PM
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do yourself a favor and swap the engine wiring harness while you are at it.. (while your 79 engine is out, put the 80 wiring harness on it)
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Old May 18, 2002 | 02:15 AM
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Re: Will a 79 engine fit into an 80?

Originally posted by Papasmurf
Will a 79 engine fit into an 80?
Yes, that's what's under here....

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Old May 18, 2002 | 07:19 AM
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It's the same engine. Direct swap.

UNLESS.... you have the uncommon California-spec '80, which had an EGR valve and its own specific housings.
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Old May 18, 2002 | 10:10 AM
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From: Da Barrio!!!(Irving, Texas)
Originally posted by riffraff
do yourself a favor and swap the engine wiring harness while you are at it.. (while your 79 engine is out, put the 80 wiring harness on it)

WHY???? That means he cant reuse the 80 ignition..... I just stuck the 80's rats nest on there...... I dont even think that was neccesary...... Oh yeah.... stick the 80's alternator on there too.... it has an internal regulator..... instead of the 79's external regulator............. That should be it though....... LATERZ, Andrew
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Old May 18, 2002 | 11:47 AM
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if he swaps the alt and not the harness, then it will not work properly. and with the 80 harnesses matching, he will be able to use the ignition.

you really need to have the engine bay harness and engine harness match, otherwise you get all sorts of weird things going on. (ask me how i know)
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Old May 18, 2002 | 06:50 PM
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When you say switch the ignition, you guys mean the distributor, coils, and engine harness, right? I figured this would be an all day project, what does everyone else think?
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Old May 19, 2002 | 01:48 AM
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Not really. Removing the old engine is just a bunch of unbolting accessories, removing a few cables and hoses, unplugging the wiring harness, and finally yanking the sucker out. (Take a couple hours with hand tools) Then you swap all of your old engine's stuff onto the new engine, drop the new engine in, and go about putting everything back on. Took me 6 hours the first time including a few hours trying to get the crappy Pacesetter header to work.

It's really not that difficult! The hardest parts will be removing the front oil cooler hose from the engine (need a thin open wrench, I think 23mm?, and not much room to maneuver), removing the A/C compressor (do not undo the lines, just swing it up out of the way, but the bolts are barely accessible), removing the cables going to the carb (tip: see if you can just remove the carb and swing it out of the way, instead of trying to undo the cables with the carb on the engine) and of course rusty exhaust nuts.

Last edited by peejay; May 19, 2002 at 01:54 AM.
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Old May 21, 2002 | 12:29 AM
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I am doing this swap in the morning. So can I basically just swap the block? You know, leave everything else in the car and just switch the blocks. Is there any websites in case I get into trouble? Thanks guys.
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Old May 21, 2002 | 01:33 AM
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You *could*.... but it's easier to yank the engine with the manifolds and everything, then swap what you have to swap over.
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Old May 21, 2002 | 02:08 AM
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I am going to ask this one more time. So I use the 80 wiring harness, coils, dizzy and alternator, and basically just stick the 79 block in there. I should probably just use the 79 carb right, because there is no difference I don't think, or should I use the 80's manifold and carb. I am sorry for all the questions, I am not incompetent, but everybody was basically arguing and it got a little confusing. Thanks again, keep an eye on this thread in the morning because I might have some questions.
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Old May 21, 2002 | 02:33 AM
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I'd use whichever carb has been run the most recently. Less likely to give you problems. If you don't know then use the '80 carb so you know it has all the proper connections. The manifolds should be the same.

Yeah, sounds like you've got it then...
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Old May 21, 2002 | 02:46 AM
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Thanks, I am a little worried, but I will take the blown engine out first and get used to that. I am taking the tranny and engine out as a whole too, hope there are no problems there.
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