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Discussion Starter · #1 ·
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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Discussion Starter · #5 ·
Heres a quick test fit :D




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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Discussion Starter · #6 ·
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 :D
 

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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
 

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Discussion Starter · #8 ·
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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Discussion Starter · #11 ·
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.
To do a real LS1 swap I would need a budget of atleast 10k... Here are the big priced items... Motor, Tranny, and the Dana 44. Too much money for a high school student. This swap so far has kept me under 2k. And all I need are motor mounts and ECM.

Another reason to go this route is that its only about a 9-10 HP difference between a 5.3 LS1 and a 5.7 LS1. and the 5.7 is all aluminum that only saves about 75 lbs, which isnt a big deal for me since this car will be my Daily Driver
 

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This looks like a fun project. Keep us updated on your swap:thumbsup:
 

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Guess i learn something new everyday on this forum dident know there was a 5.3 l ls1 im still leaning towards the 383 3k and you get 500hp/500ft lbs tq.
I feel you on the money issue but im saveing up my car runs great now so its no hurry i guess.
 

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Discussion Starter · #17 ·
Guess i learn something new everyday on this forum dident know there was a 5.3 l ls1 im still leaning towards the 383 3k and you get 500hp/500ft lbs tq.
I feel you on the money issue but im saveing up my car runs great now so its no hurry i guess.
yeah, but yet again with the 383 I wouldnt be able to keep my tranny lol... It took a good couple of months before i knew which route to take. I hope someday I will be able to Twin Turbo the 5.3 and upgrade the tranny... one day
 

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Guess i learn something new everyday on this forum dident know there was a 5.3 l ls1 im still leaning towards the 383 3k and you get 500hp/500ft lbs tq.
I feel you on the money issue but im saveing up my car runs great now so its no hurry i guess.
no flame intended here but 3k seems terribly low, for those figures if you don't mind me askin where did you find these. I have built 2 and have more in them together then I paid for my C4
 

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no flame intended here but 3k seems terribly low, for those figures if you don't mind me askin where did you find these. I have built 2 and have more in them together then I paid for my C4
www.ebay.com
 

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Why not... nothing better than having your hands numb and dry and getting cut up every time u try to loosen a bolt :rofl:
You wont be saying that when your older, I promise:wheelchair:

So far it is a fun project and I will be sure to keep u guys updated:thumbsup:
Please do, so far it looks cool and I'm curious how it all fits together. seems like 84's and 85's with blown engines or complete motor basket cases are a dime a dozen down here and this may be some project in the future for me as well. Who knows. Good Job:thumbsup3:
 
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