LS1 to LS2 conversion Questions! HELP!
Thread Starter
Staging Lane
Joined: May 2006
Posts: 63
Likes: 0
From: canada
LS1 to LS2 conversion Questions! HELP! I got the chance to swap out my LS1 for an LS2 recently and i have a few questions that i dont see much of.
1). Can i use my Ls1 Flywheel and clutch with my M6 Tranny? or do i have to use the ls2 flywheel and buy a new clutch?
2). Are the bolt holes on the front of the block the same from LS1-LS2's?
3). Can i use the accessories on my LS1 motor on the LS2?(waterpump alt brackets crank pulley ect?)
4). if i had to can i use my LS1 intake and TB on the LS2 motor? is there any problems ill run into with any coolant lines ect?
5). i can use the stock LS2 oil and knock sensors just use the adaptor harness's correct?
6). i have a painless wiring harness will i have any problems using this with the ls2?
7). for a bigger cam i will have to upgrade the springs in the ls2 anyways right?(almost 600 lift)
8). would it be better for me to use the stock ls2 injectors(if i can get them) and is there adaptors for the injectors or do i have to cut and solder new connectors on?(i know i need the spacer setup and bigger o-rings)
9). can i use the stock LS1 Starter?
10). i know i can use my ls1 oil pan but what else do i need to use. the ls1 pickup tube and thats it? or is there more?
Sorry for all the questions but these are all ones i need to have answered. i think this is all the questions i have for right now. if i think
1). Can i use my Ls1 Flywheel and clutch with my M6 Tranny? or do i have to use the ls2 flywheel and buy a new clutch?
2). Are the bolt holes on the front of the block the same from LS1-LS2's?
3). Can i use the accessories on my LS1 motor on the LS2?(waterpump alt brackets crank pulley ect?)
4). if i had to can i use my LS1 intake and TB on the LS2 motor? is there any problems ill run into with any coolant lines ect?
5). i can use the stock LS2 oil and knock sensors just use the adaptor harness's correct?
6). i have a painless wiring harness will i have any problems using this with the ls2?
7). for a bigger cam i will have to upgrade the springs in the ls2 anyways right?(almost 600 lift)
8). would it be better for me to use the stock ls2 injectors(if i can get them) and is there adaptors for the injectors or do i have to cut and solder new connectors on?(i know i need the spacer setup and bigger o-rings)
9). can i use the stock LS1 Starter?
10). i know i can use my ls1 oil pan but what else do i need to use. the ls1 pickup tube and thats it? or is there more?
Sorry for all the questions but these are all ones i need to have answered. i think this is all the questions i have for right now. if i think
TECH Enthusiast
Joined: May 2005
Posts: 689
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From: Perth, Australia
1).YES
2). YES
3). YES
4). YES
5). NO......use LS1 knock sensors screwed into the side of LS2 block. Use LS1 oil sender.
6). dont know
7). YES
8). LS2 injectors need adapters and it might be easier to use LS1 style ( or SVO 30+) if you are sticking with LS1 type intake and fuel rail.
9). YES
10). Windage tray, dipstick tube and dipstick.
2). YES
3). YES
4). YES
5). NO......use LS1 knock sensors screwed into the side of LS2 block. Use LS1 oil sender.
6). dont know
7). YES
8). LS2 injectors need adapters and it might be easier to use LS1 style ( or SVO 30+) if you are sticking with LS1 type intake and fuel rail.
9). YES
10). Windage tray, dipstick tube and dipstick.
Thread Starter
Staging Lane
Joined: May 2006
Posts: 63
Likes: 0
From: canada
Originally Posted by HSV-GTS-300
1).YES
2). YES
3). YES
4). YES
5). NO......use LS1 knock sensors screwed into the side of LS2 block. Use LS1 oil sender.
6). dont know
7). YES
8). LS2 injectors need adapters and it might be easier to use LS1 style ( or SVO 30+) if you are sticking with LS1 type intake and fuel rail.
9). YES
10). Windage tray, dipstick tube and dipstick.
2). YES
3). YES
4). YES
5). NO......use LS1 knock sensors screwed into the side of LS2 block. Use LS1 oil sender.
6). dont know
7). YES
8). LS2 injectors need adapters and it might be easier to use LS1 style ( or SVO 30+) if you are sticking with LS1 type intake and fuel rail.
9). YES
10). Windage tray, dipstick tube and dipstick.
5). what if i have clearance problems for the knock sensor by the header, isnt there a spot on the front of the block that can be used or somewhere?
10). As in all of those and the oil pickup and pan or just what you said? the windage tray dipstick tube and dipstick
What size are the LS2 injectors?
TECH Enthusiast
Joined: May 2005
Posts: 689
Likes: 0
From: Perth, Australia
Originally Posted by Black93Z28
1). Yes as in i can use my ls1 flywheel and clutch, or yes as in i have to get an ls2 flywheel and clutch?
5). what if i have clearance problems for the knock sensor by the header, isnt there a spot on the front of the block that can be used or somewhere?
10). As in all of those and the oil pickup and pan or just what you said? the windage tray dipstick tube and dipstick
What size are the LS2 injectors?
5). what if i have clearance problems for the knock sensor by the header, isnt there a spot on the front of the block that can be used or somewhere?
10). As in all of those and the oil pickup and pan or just what you said? the windage tray dipstick tube and dipstick
What size are the LS2 injectors?
5). Use a hand drill and 8.5mm drill bit to open up the blind M8 female threaded bosses on each side of the block. Run an M10x1.5 hand tap to make about 3/4" of M10 female thread. Screw LS1 sensors in HERE.....or use any un-used M10 engine mount bolt holes on each side of the LS2 block.
10). As in all of those and the oil pickup and pan. Depending on pan config (if dipstick tube goes into pan) you might need to insert a small freeze plug and sealant in the LS2 block dipstick tube hole.
LS2 injectors are about 32Lb/Hr @58psi. Bosch Part No 0 280 158 049
GM Part No 12569113
They are shorter, different O ring size & different electrical connector to LS1.
Thread Starter
Staging Lane
Joined: May 2006
Posts: 63
Likes: 0
From: canada
Originally Posted by HSV-GTS-300
5). Use a hand drill and 8.5mm drill bit to open up the blind M8 female threaded bosses on each side of the block. Run an M10x1.5 hand tap to make about 3/4" of M10 female thread. Screw LS1 sensors in HERE.....or use any un-used M10 engine mount bolt holes on each side of the LS2 block.
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TECH Apprentice
Joined: Sep 2005
Posts: 370
Likes: 0
From: DFW, TX
call scroggin-dickey they have a LS1-LS2 conversion package for $250 and should be able to help you with the relocation and extensions of the knock sensors, the cam sensor. this package includes a valley cover and front cover because those are different. you will need to shim or use a small washer for the windage tray for additional clearance. the main bolts when bolting the windage tray on are different on a LS2, i found this out on my install last week.
im using SV0 42's only because im going to end up putting a 125 shot on her in the long run. SV0 30's should be fine for all motor. or FAST36's or Delphi 37's. use a ls1 style injector as someone else has stated, its not necessary to use a LS2 injector unless you are using the LS2 intake and if you are then you need fuel rail and a conversion harness as well i believe. if you are going this route hit lt1dave up, he has ported LS2's with this conversion ready to go on the car in stock. i almost went this way cause his ported ls2 is comprabable to a non ported fast 90.
ps my car is finally running as of tonight
im using SV0 42's only because im going to end up putting a 125 shot on her in the long run. SV0 30's should be fine for all motor. or FAST36's or Delphi 37's. use a ls1 style injector as someone else has stated, its not necessary to use a LS2 injector unless you are using the LS2 intake and if you are then you need fuel rail and a conversion harness as well i believe. if you are going this route hit lt1dave up, he has ported LS2's with this conversion ready to go on the car in stock. i almost went this way cause his ported ls2 is comprabable to a non ported fast 90.
ps my car is finally running as of tonight
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Depending on where you obtained your LS2.. it may have a 24x reluctor on the crank or a 58x..
if you are using the LS1 PCM/ECM you will need to make sure that your crank has the 24x reluctor....
if you are using the LS1 PCM/ECM you will need to make sure that your crank has the 24x reluctor....
Thread Starter
Staging Lane
Joined: May 2006
Posts: 63
Likes: 0
From: canada
Originally Posted by dead2me
Depending on where you obtained your LS2.. it may have a 24x reluctor on the crank or a 58x..
if you are using the LS1 PCM/ECM you will need to make sure that your crank has the 24x reluctor....
if you are using the LS1 PCM/ECM you will need to make sure that your crank has the 24x reluctor....
blown04z06- Did you use the ls1 fuel rail or the ls2?
See this thread: https://ls1tech.com/forums/generation-iv-internal-engine/583028-ls1-computer-ls2-l92.html
from that thread.. :
the breakdown of 24X vs. 58X engines is NOT as simple as saying 2006 and newer is 58X.
06 Corvette LS2/LS7 = 58X
06 GM crate engine = 58X
06 GTO and 06 Trailblazer SS LS2 are carryover 24X engines with the E40 ECM!
07 Traiblazer SS is 58X
07 GTO didn't happen (I think)
Not everybody needs to tear apart that brand new crate engine for a reluctor wheel change!
__________________
John
Speartech Fuel Injection Systems, Inc.
from that thread.. :
the breakdown of 24X vs. 58X engines is NOT as simple as saying 2006 and newer is 58X.
06 Corvette LS2/LS7 = 58X
06 GM crate engine = 58X
06 GTO and 06 Trailblazer SS LS2 are carryover 24X engines with the E40 ECM!
07 Traiblazer SS is 58X
07 GTO didn't happen (I think)
Not everybody needs to tear apart that brand new crate engine for a reluctor wheel change!
__________________
John
Speartech Fuel Injection Systems, Inc.
Thread Starter
Staging Lane
Joined: May 2006
Posts: 63
Likes: 0
From: canada
Originally Posted by dead2me
See this thread: https://ls1tech.com/forums/showthread.php?t=583028
from that thread.. :
the breakdown of 24X vs. 58X engines is NOT as simple as saying 2006 and newer is 58X.
06 Corvette LS2/LS7 = 58X
06 GM crate engine = 58X
06 GTO and 06 Trailblazer SS LS2 are carryover 24X engines with the E40 ECM!
07 Traiblazer SS is 58X
07 GTO didn't happen (I think)
Not everybody needs to tear apart that brand new crate engine for a reluctor wheel change!
__________________
John
Speartech Fuel Injection Systems, Inc.
from that thread.. :
the breakdown of 24X vs. 58X engines is NOT as simple as saying 2006 and newer is 58X.
06 Corvette LS2/LS7 = 58X
06 GM crate engine = 58X
06 GTO and 06 Trailblazer SS LS2 are carryover 24X engines with the E40 ECM!
07 Traiblazer SS is 58X
07 GTO didn't happen (I think)
Not everybody needs to tear apart that brand new crate engine for a reluctor wheel change!
__________________
John
Speartech Fuel Injection Systems, Inc.
The knock sensors on the LS1 are on the valley cover. I believe what he is saying is to relocate them on the sides of the block. You will need extensions for this and several sponsors here on the board sell them. I could be completely wrong, but that's the way I took it. Is this right?