Engine Swap??
Thread Starter
Racer
Joined: Feb 2009
Posts: 425
Likes: 0
From: Diamondhead Mississippi
Engine Swap??
Well the crankshaft in my ls2 is trashed so I am just going to buy a crate motor, I was just looking for things that I might run into if went with the ls3 as far as if I would need a new wiring harness and any trouble I might run into or if I could just buy one and drop it in.
My car is a 2005..
I would be EXTREMELY greatful for any help as I am doing the install myself..
thanks.
My car is a 2005..
I would be EXTREMELY greatful for any help as I am doing the install myself..
thanks.
Burning Brakes
Joined: Oct 2005
Posts: 1,007
Likes: 0
From: Rockwall TX
Well the crankshaft in my ls2 is trashed so I am just going to buy a crate motor, I was just looking for things that I might run into if went with the ls3 as far as if I would need a new wiring harness and any trouble I might run into or if I could just buy one and drop it in.
My car is a 2005..
I would be EXTREMELY greatful for any help as I am doing the install myself..
thanks.
My car is a 2005..
I would be EXTREMELY greatful for any help as I am doing the install myself..
thanks.
Thread Starter
Racer
Joined: Feb 2009
Posts: 425
Likes: 0
From: Diamondhead Mississippi
Check on your vin # if yours is an early model,it's a 24x reluctor crank,if it's the later model,it's 58x. i think the black crank sensor is the 24x,and the grey sensor is 58x.thats the only difference,and the computer. you can also get the conversion box from Lingenfelter for like $250.
Burning Brakes
Joined: Oct 2005
Posts: 1,007
Likes: 0
From: Rockwall TX
The ls3 has an Ls7 maf,the card style. you can change the tune in your computer to except that. if you choose too.you can always just run your stock maf. all the other sensors and plugs are the same. just the crank sensor being 58x. and the ls3 computer,which is a ls7 comp. and the maf sensor. your throttle body will go right on an ls3,along with the maf,so you could run your harness,an comp. an if need be,use the conversion box. find out what crank you have.and start there.when ordering an engine,you need to know what cam gear you need. if your 24x,you need the 2x gear.if 58x,you need the 4x gear. these are sensors tabs are on the cam gear.
Supporting Vendor
Joined: Sep 2007
Posts: 11,216
Likes: 178
From: Pensacola Florida GO GATORS!!! www.rlsebring.com www.c6c7vette.com
St. Jude Donor '17
There are some pin out differences with the wiring harness and the underhood fuse block and if I remember correctly the gas pedal has a different resistance.
Thread Starter
Racer
Joined: Feb 2009
Posts: 425
Likes: 0
From: Diamondhead Mississippi
Tech Contributor
Joined: Mar 2003
Posts: 12,094
Likes: 197
From: Colorado Springs, CO
St. Jude Donor '08-'09-'10-'11
Check on your vin # if yours is an early model,it's a 24x reluctor crank,if it's the later model,it's 58x. i think the black crank sensor is the 24x,and the grey sensor is 58x.thats the only difference,and the computer. you can also get the conversion box from Lingenfelter for like $250.
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Burning Brakes
Joined: Oct 2005
Posts: 1,007
Likes: 0
From: Rockwall TX
Burning Brakes
Joined: Oct 2005
Posts: 1,007
Likes: 0
From: Rockwall TX
Burning Brakes
Joined: Oct 2005
Posts: 1,007
Likes: 0
From: Rockwall TX
Like he said,do the forged shortblock.put some ss valves in your heads.or get the Patriot heads and sell yours for $500. your shortblock is still worth maybe $600-700.if it didnt spin a main bearing.
Thread Starter
Racer
Joined: Feb 2009
Posts: 425
Likes: 0
From: Diamondhead Mississippi
I'm not sure if anyone here has read the thread that somebody posted about on the 05's the harmonic balancer pulley bolt coming loose, well that happen to me. Unfortunately I caught it to late and all of the threads in the crank came out with the bolt so I have no way to bolt the main drive pulley on.
Burning Brakes
Joined: Oct 2005
Posts: 1,007
Likes: 0
From: Rockwall TX
I'm not sure if anyone here has read the thread that somebody posted about on the 05's the harmonic balancer pulley bolt coming loose, well that happen to me. Unfortunately I caught it to late and all of the threads in the crank came out with the bolt so I have no way to bolt the main drive pulley on.
Thread Starter
Racer
Joined: Feb 2009
Posts: 425
Likes: 0
From: Diamondhead Mississippi
Thanks but I'm not to sure how well that would hold up..
Melting Slicks
Joined: Jun 2002
Posts: 2,168
Likes: 16
From: Phoenix AZ
I did this on my '06 and did a writeup on it afterwards. Only thing I ran into was the oil pressure sending unit connector and MAP connector were different, I swapped the oil pressure sending unit from the old motor (do this BEFORE you put the motor in) and bought a new style MAF connector. If you have an auto trans the idle speed of the LS3 is higher and the converter may be locking up slightly while stopped in gear. The '08-11 converter in the L680E is different from the '06-'07 and yours being an '05 LS2 might have the same issue.
http://forums.corvetteforum.com/c6-t...-underway.html
Lots of good input from other members regarding the '05 and reluctor wheel issue in the thread.
After reading the thread again I did have an issue with the water pump being different, had to replace the upper hose with the new style.
http://forums.corvetteforum.com/c6-t...-underway.html
Lots of good input from other members regarding the '05 and reluctor wheel issue in the thread.
After reading the thread again I did have an issue with the water pump being different, had to replace the upper hose with the new style.
Last edited by vetracer; Nov 23, 2010 at 12:04 PM.
Team Owner
Joined: Sep 1999
Posts: 41,732
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From: Springfield MO
If you're planning to buy another engine plus do a build on your LS2, you might consider just buying a LSx454 crate engine and sell your LS2. $9,300 buys you around 520 horsepower with a GM 24 month/50,000 mile warranty.
