ls1 and lq4 flex plate...is mine correct?

ldyzluvdis06

Supercharged C5
Joined
Sep 30, 2008
Messages
5,791
Reaction score
9
Location
Jacksonville, IL
just picked up a lq4 out of a 05 2500. looking to bolt up my SS3600 stall and flt 4l60e trans. i noticed that the flexplates look a little bit different, and figured i might as well post up to find out if i will have any issues here...? thanks in advance.

1998 5.7L LS1:



2005 6.0L LQ4:



i have read that early year lq4's had spacers on the plate or something, but this isn't an early year. it looks as if it might work because it is recessed then it looks like it has the converter mounting point raised up. i just want to confirm though, before i install everything in my car, just to find out i would have to drop the trans again to swap flexplates. :ugh:

any help? :dunno:
 

HILROD

Well-known member
Joined
Oct 22, 2007
Messages
1,471
Reaction score
36
Location
ELGIN
Measure from the block to the teeth on both. If that is the same and the center pilot depth is the same it's fine. I know the LQ4 fits in front of a 4L80E!:cool2:
 

Smokinhot

3-man rules!!!!
Joined
Jul 4, 2007
Messages
13,624
Reaction score
49
Location
Lansing, IL
you need the 60e flexplate. Also there's a spacer on there that would need to get removed. It's easy. Good luck on that 60e lasting behind the 6.0 especially if its going to be modded :rofl:
 

ldyzluvdis06

Supercharged C5
Joined
Sep 30, 2008
Messages
5,791
Reaction score
9
Location
Jacksonville, IL
so all i have to do is remove the spacer and install my plate?

it's a fully built trans from flt...i know that doesn't make it bullet proof, but hoping it will last a season or two. but the 6.0 is going to be H/C lol
 

Smokinhot

3-man rules!!!!
Joined
Jul 4, 2007
Messages
13,624
Reaction score
49
Location
Lansing, IL
so all i have to do is remove the spacer and install my plate?

it's a fully built trans from flt...i know that doesn't make it bullet proof, but hoping it will last a season or two. but the 6.0 is going to be H/C lol
Yep, remove the 6.0 flexplate and spacer and bolt the ls1 flexplate and trans right up ;)

A built one is better than a stock one lol. I wanted to go with the 60e but i found out the stock one would've gotten destroyed. So $850 for a trans that can withstand 550-600whp in stock form or $2000 for a 60e to take just a hair more and reliablity iffy. We all know built trans' are hit and miss.
 

School Boy

Spray the cubic inch at it!
Joined
Mar 28, 2011
Messages
6,272
Reaction score
8
you need the 60e flexplate. Also there's a spacer on there that would need to get removed. It's easy. Good luck on that 60e lasting behind the 6.0 especially if its going to be modded :rofl:
Yep, remove the 6.0 flexplate and spacer and bolt the ls1 flexplate and trans right up ;)

A built one is better than a stock one lol. I wanted to go with the 60e but i found out the stock one would've gotten destroyed. So $850 for a trans that can withstand 550-600whp in stock form or $2000 for a 60e to take just a hair more and reliablity iffy. We all know built trans' are hit and miss.
I sprayed my car with a 250+ shot on that trans and it NEVER skipped a beat. He has nothing to worry about. To me an 80e is way too expensive i would go th400 before I went with an 80e.
 

Smokinhot

3-man rules!!!!
Joined
Jul 4, 2007
Messages
13,624
Reaction score
49
Location
Lansing, IL

School Boy

Spray the cubic inch at it!
Joined
Mar 28, 2011
Messages
6,272
Reaction score
8
Here ya go, i was pretty sure but to be 100% i asked the truck guys

bolting a 60e behind a 6.0 - PerformanceTrucks.net Forums



I still enjoy the comforts of overdrive in the truck for what i use it for:rofl: race cars use th400 ;)
Truck guys must not like the 60 because of how heavy their shit is. Im not saying a 80 isnt better but a built 60 will do just fine behind a 700rwhp car.

I have a 3.25 gear so theres no need for over drive. :)
 

Smokinhot

3-man rules!!!!
Joined
Jul 4, 2007
Messages
13,624
Reaction score
49
Location
Lansing, IL
Truck guys must not like the 60 because of how heavy their shit is. Im not saying a 80 isnt better but a built 60 will do just fine behind a 700rwhp car.

I have a 3.25 gear so theres no need for over drive. :)
And I've got a ton on you :rofl:

A lot of the boys run standard cab short bed trucks, so close to 4200#

I just went with the 80 bc it was cheaper than a built 60. I like it, I also have a 4.56 gear :rofl: That'll change later when i add boost
 

ldyzluvdis06

Supercharged C5
Joined
Sep 30, 2008
Messages
5,791
Reaction score
9
Location
Jacksonville, IL
What flex plate are you running? I have an SFI approved ls1 flex plate that i can sell you.
stock. and im out of money. lol. sell it to me and ill pay you later. :hsughlol::hsughlol:

the guys at YANK and TSP said i should be okay though, that they have never heard of, or seen a 98 flexplate break, it's always been the later years.
 

School Boy

Spray the cubic inch at it!
Joined
Mar 28, 2011
Messages
6,272
Reaction score
8
stock. and im out of money. lol. sell it to me and ill pay you later. :hsughlol::hsughlol:

the guys at YANK and TSP said i should be okay though, that they have never heard of, or seen a 98 flexplate break, it's always been the later years.
I hear ya man. You can take it and pay me later if you want. Its just sitting in mt garage.
 

ldyzluvdis06

Supercharged C5
Joined
Sep 30, 2008
Messages
5,791
Reaction score
9
Location
Jacksonville, IL
engine and trans is sitting under the car. ill be working on it today to get it all buttoned up. but i have to order a new crank pulley, i noticed mine is messed up pretty bad and even scarred the 5.7 crank. so it will be ready to run by the end of the weekend, then i just have to wait for the new pulley to come it.

should i be safe driving it after its finished, or should i wait for the tuner to come over? the 5.7 was tuned nicely with some timing pulled out to be safe.
 

6literEat'r

Well-known member
Joined
Oct 21, 2008
Messages
1,239
Reaction score
0
i think youll be ok to drive it as it is...just dont beat on it
 

ldyzluvdis06

Supercharged C5
Joined
Sep 30, 2008
Messages
5,791
Reaction score
9
Location
Jacksonville, IL
engine and trans is bolted back up in the car. still need to hook up all the connectors and install crank pulley. when i removed my asp underdrive i was about to install it on the 6.0 and noticed the 5.7 crank had some scarring on it. checked out the pulley and the "bearing" portion of it was messed up. so i need to get me a new one ordered before installing the front cooling items and starting it up.

 

Create an account or login to comment

You must be a member in order to leave a comment

Create account

Create an account on our community. It's easy!

Log in

Already have an account? Log in here.

Top Bottom