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SmokinVette.com Forums : Corvette Forums : C4 Corvette Forums : C4 Corvette General Discussion : 1984 Corvette "LS1" Engine Swap/Build
C4 Corvette General Discussion
1984 - 1996 Corvettes

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Old 12-27-2009, 05:31 PM   #1
eilax53
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Default 1984 Corvette "LS1" Engine Swap/Build

Well I finally realized I never posted this here... I have on other forums and decided to post it here as well... Enjoy and the posts are just copied so the wording might not make sense. These are posts spread apart a time frame of about a month... Enjoy

Well after some research I have decided to do an "LS1" Engine Swap/Build. This was the thread that convinced me to do this swap...
Click HERE
and I started to wonder if anyone has done this swap in a C4. It turns out that corvette fever has done this swap in a C4 and its called Project C4orce. Once I saw that I knew that, that was the engine swap I wanted to do. The reason I'm not doing an actual LSx swap is because it is too much money for a high school kid.

So today I managed to get down to the junkyard and pick up an LM7 327 (5.3L) engine from a 2000 Chevy Silverado 1500. It has 52k miles on it and cost me $600. It seems to be in good condition and everything but I have 30 days to return it so I am going to be doing compression test and a leak down test first. Once its good I will be swapping the truck intake for an LS1 intake, fuel rails, and injectors that I bought used for $130 (still waiting for it to come in the mail). All I need to get the motor running is a LS1 harness and ECM then it will be good to go for the swap.
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Old 12-27-2009, 05:31 PM   #2
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Here are some pics of the motor the way it is now (how it came from the junkyard)












It came with everything besides an alternator and belt.

My Ls1 Intake







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Old 12-27-2009, 05:32 PM   #3
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Here are some pics of the motor the way it is now (how it came from the junkyard)












It came with everything besides an alternator and belt.

My Ls1 Intake







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Old 12-27-2009, 05:33 PM   #4
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Well got it set up in the garage on a stand and started to rip it apart



Intake off




Cleaning it up and took off all the accessories








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Old 12-27-2009, 05:33 PM   #5
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Heres a quick test fit




Well finally got some free time to get a little work done on the engine. I spun it upside down and took off the oil pan to check out the bottom end and look at the cylinder walls. It looks great. You can still see a slight bit of cross-hatch pattern on the walls.









And heres the difference between the truck oil pan and the Firebird pan.








Now im back on hold untill the new windage tray arrives. Also in the market for an LS1 harness and ECM. Might start disassembling the car to get ready to pull the crossfire
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Old 12-27-2009, 05:34 PM   #6
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Got some more work done...

Windage tray and pick-up tube installed




Oil pan installed
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Coolant Lines and knock sensors installed


Intake, Valve Covers, and coil packs installed


Engine Harness installed (for now)




I gotta figure out some things about the harness since there seems to be extra wires that I dont think I need. This week I am off from school so I should get a lot of progress done on the engine
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Old 12-27-2009, 05:35 PM   #7
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Nice man! but i would of saved up and got the ls1 you can find them kinda cheap now =p
But anyways looks like a fun project. how much did that tent type garage cost you i been wanting to get 1

Last edited by hokies83; 12-27-2009 at 05:39 PM.
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Old 12-27-2009, 05:35 PM   #8
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Got some more work done...

Heres a look at the blizzard we got yesterday and yes thats the curb poking thro on the bottom :laughing:






Had to shovel a pathway to my car :laughing:




Heres some before shots




And the progress I got done today


I removed the air pump, alternator, power steering container, and the power steering pump (besides the one hose going to the rack, got to dark)
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Old 12-27-2009, 05:36 PM   #9
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Removed the SMOG pump, A/C, distributor, radiator and shroud, crankshaft pulley, and hood.























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Old 12-27-2009, 05:37 PM   #10
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Well... I have some more pics





























This is what it looks like today... Will keep you guys posted as my progress continues
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