New LS1 Owners - Newbie Tech Basic Technical Questions & Advice
Sponsored by:
Sponsored by:

Need to know what Flywheel to get! LQ9 to T5 trans!

Thread Tools
 
Search this Thread
 
Old 01-20-2010, 08:29 AM
  #1  
Teching In
Thread Starter
iTrader: (1)
 
driftking777's Avatar
 
Join Date: Oct 2006
Posts: 4
Likes: 0
Received 0 Likes on 0 Posts
Default Need to know what Flywheel to get! LQ9 to T5 trans!

So i have a 5.3L LQ9 (is that right?) from a 02 chevy 1500. Im doing a motor swap into my Rx7 and found out that the T5 Flywheel doesnt bolt to the crank of the LQ9 motor.

Which flywheel/clutch combo do i need to use to make this work?

Thanks for the help in advance guys!

(will a LS1 T56 flywheel setup work on the LQ9 crank?)
Old 01-20-2010, 09:04 AM
  #2  
TECH Junkie
iTrader: (5)
 
teke184's Avatar
 
Join Date: Feb 2007
Location: Key West, Florida
Posts: 3,183
Likes: 0
Received 0 Likes on 0 Posts
Default

lq9 is a 6L motor i think
Old 01-20-2010, 01:00 PM
  #3  
Teching In
Thread Starter
iTrader: (1)
 
driftking777's Avatar
 
Join Date: Oct 2006
Posts: 4
Likes: 0
Received 0 Likes on 0 Posts
Default

well in any case its a 5.3L out of a truck. Not sure on the letter designation i guess. LSx? lol
Old 01-20-2010, 10:11 PM
  #4  
Teching In
Thread Starter
iTrader: (1)
 
driftking777's Avatar
 
Join Date: Oct 2006
Posts: 4
Likes: 0
Received 0 Likes on 0 Posts
Default

Someone has to lend me some insight here. is the 5.3 crank bolt pattern the same as the LS1 crank bolt patterns?
Old 01-21-2010, 06:46 AM
  #5  
TECH Junkie
iTrader: (5)
 
teke184's Avatar
 
Join Date: Feb 2007
Location: Key West, Florida
Posts: 3,183
Likes: 0
Received 0 Likes on 0 Posts
Default

all the ls based engines...4.8, 5.3, 5.7, 6.0, 6.2...should be the same bolt pattern
Old 01-23-2010, 12:21 PM
  #6  
TECH Fanatic
iTrader: (10)
 
Fb0dy0nly's Avatar
 
Join Date: Aug 2006
Location: Detroit ROCK City
Posts: 1,490
Likes: 0
Received 2 Likes on 2 Posts

Default

Its actually LM7 for the 5.3, not LQ9, that would be the 6.0l LS2 block.
Old 01-23-2010, 11:44 PM
  #7  
Launching!
iTrader: (44)
 
408z28's Avatar
 
Join Date: Aug 2007
Location: Greensboro, North Carolina
Posts: 286
Likes: 0
Received 1 Like on 1 Post

Default

You will need a ls1 f-body flywheel, and pressure plate. The disc you will need to match to the splines on the trans. If its a v8 t-5 it will be a 26 spline, get a clutch disc for a 87-92 iroc 5sp.
Old 01-24-2010, 03:09 AM
  #8  
11 Second Club
iTrader: (88)
 
the_merv's Avatar
 
Join Date: Mar 2006
Location: The Beach...
Posts: 19,261
Received 63 Likes on 54 Posts

Default

Let me clear a few things up for ya here..there is a good bit of mis-info here..

A T5 will NOT directly bolt up to a LS Block..Bell Housing is completely different, aswell as the Input Shaft. That and neither will a LT Clutch go onto a LS Flywheel..different bolt pattern..as in the Clutch is too big for the LS Pressure Plate.

Also, even if you did manage to bolt it up you will kill the T5..they are junk.

Go with the LS1 T56 Setup, it will bolt up to what you have.

You already got your Engine figured out..but for the rest of ya a LQ9 is a 6.0l Iron Block with 317 Heads, found in the Silverado SS, and the Escalades. It's identical to an LQ4 6.0l(found in the 2500HD's), just the LQ9 has flat-top Pistons for higher comp.

An LS2 is an LS2..there is only one type..all Aluminum 6.0l, 243 Heads.

Now an L76 is an LS2 Block(6.0l) with factory L92/LS3 Heads, and L76 Intake.

Last edited by the_merv; 01-24-2010 at 03:16 AM.
Old 01-24-2010, 08:48 AM
  #9  
Launching!
iTrader: (44)
 
408z28's Avatar
 
Join Date: Aug 2007
Location: Greensboro, North Carolina
Posts: 286
Likes: 0
Received 1 Like on 1 Post

Default

That is why I said LS1 flywheel AND pressure plate....disc for what ever spline trans you go with. Done many s-10 swaps like this. T-5 v-8 bellhousing will bolt up! Why wouldnt it? You can run a th-400/350 behind an ls motor, you just need a converter spacer but the bellhousing pattern is the same as the t-5(minus one corner bolt)

I know the v6 t-5 trans (87-92 camaro/s-10 2.8) has a longer input shaft, so you have to cut 9/16" off the shaft to get your pilot depth right. But the actual v-8 (car/camaro t-5) with the removable bellhousing will work.

If you were to run this set up..... A STOCK 5.3 would problly break a t-5 in about a month. If you are racing the car, it would break the first time you got it to hook up.
So...I personally wouldn't reccomend it.

Last edited by 408z28; 01-24-2010 at 09:07 AM.
Old 01-24-2010, 09:24 AM
  #10  
11 Second Club
iTrader: (88)
 
the_merv's Avatar
 
Join Date: Mar 2006
Location: The Beach...
Posts: 19,261
Received 63 Likes on 54 Posts

Default

Originally Posted by 408z28
That is why I said LS1 flywheel AND pressure plate....disc for what ever spline trans you go with. Done many s-10 swaps like this. T-5 v-8 bellhousing will bolt up! Why wouldnt it? You can run a th-400/350 behind an ls motor, you just need a converter spacer but the bellhousing pattern is the same as the t-5(minus one corner bolt)
See you got the Auto one on the nose..now answer me this..

Yea the Bell Housing may bolt up, but you are forgetting that the LS Pressure Plate is a Push-type, not a Pull Type..?

Yea you can bolt the V8 Bell housing to it all day long, and where will you be.. the same place if you had a LT1 T56 and were wanting to bolt it to a LS Engine.

See what I mean..it's not as simple as an Auto.
Old 01-24-2010, 09:47 AM
  #11  
Launching!
iTrader: (44)
 
408z28's Avatar
 
Join Date: Aug 2007
Location: Greensboro, North Carolina
Posts: 286
Likes: 0
Received 1 Like on 1 Post

Default

The pressure plate is always a push style no matter what type of vehicle it is...you are thinking of the hydraulics. The lt1 pulls on the out side, but has a pivot lever/ball inside to redirect the pressure. Nothing actually pulls the pressure plate away from the flywheel.
Old 01-24-2010, 12:16 PM
  #12  
11 Second Club
iTrader: (88)
 
the_merv's Avatar
 
Join Date: Mar 2006
Location: The Beach...
Posts: 19,261
Received 63 Likes on 54 Posts

Default

Originally Posted by 408z28
The pressure plate is always a push style no matter what type of vehicle it is...you are thinking of the hydraulics. The lt1 pulls on the out side, but has a pivot lever/ball inside to redirect the pressure.
Ummm go under an LT1 Car and take another look..

Slave pushes into the Fork, which acts like a Fulcrum and pulls the Throw-out Bearing which pulls the Fingers on the Pressure Plate, which pulls the contact point(I think its called the Diaphram) off of the backside of the Clutch.

Originally Posted by 408z28
Nothing actually pulls the pressure plate away from the flywheel.
No ****..it's bolted onto it..I have installed them before once or twice..I think one was in my car..
Old 01-24-2010, 01:52 PM
  #13  
Launching!
iTrader: (44)
 
408z28's Avatar
 
Join Date: Aug 2007
Location: Greensboro, North Carolina
Posts: 286
Likes: 0
Received 1 Like on 1 Post

Default

Originally Posted by the_merv

No ****..it's bolted onto it..I have installed them before once or twice..I think one was in my car..
No need to get a ******' attiude... Since you know everything about t-5's, ls1's lt1's and how they all work....Ive never built any ls1 engines or vehicles!
Old 01-24-2010, 03:35 PM
  #14  
11 Second Club
iTrader: (88)
 
the_merv's Avatar
 
Join Date: Mar 2006
Location: The Beach...
Posts: 19,261
Received 63 Likes on 54 Posts

Default

Originally Posted by 408z28
Ive never built any LT1 engines or vehicles!
Fixed..





Quick Reply: Need to know what Flywheel to get! LQ9 to T5 trans!



All times are GMT -5. The time now is 11:09 PM.