hey guys new to the forum. I have some questions and hope i can help with the community in time. I am a couple months away from becoming a journeyman mechanic and purchased my first jbody. A 98 sunfire gt. It suprised me quite a bit with its options, stock power, and overall appearance. It further got badges shaved, lowered, short shifter etc. regretably i had to let it go but have already bought another one lol a 2000 sunfire gt. It was a no start and after some diagnosing i threw a fuel pump in it and well... it started... started knocking like a mother f'er. pulled the plugs and #2 was soaked in oil, dropped the oil and the plug magnet was doing its job... holding quite a bit of metal lol. looked at the pricing for a long block with a head at the local wrecker, hundred bucks even. So i yanked the motor out of my car, unplugged all connectors, pulled the fuel rail complete still connected to the fuel lines etc. Ive seen the descriptions of LD9's, (re posted below) and i was wondering which ones (if any) i can use for a swap. I will be re using my standard trans and flywheel, fuel rail/injectors, all accessories. Just wanting to swap bare long blocks + heads. I appreciate any insight regarding this topic. thank you
96 Model Year
*Engine had different oil passages, and water-pump problems
*Large starter
*One wire front O2 sensor
*Low impedance Injectors
*12465154 Version 1a no longer offered.
*Had EGR Valve
*Domed Top Pistons
*9.5:1 CR
*Large knock sensor
*Head Casting number is 683-18


97-98 Model Year
*Oil passages and water-pump problems lessen.
*Large starter
*One wire front O2 sensor
*Low impedance Injectors
*Had EGR Valve
*Domed Top Pistons
*9.5:1 CR
*Large knock sensor
*Head Casting number is 683-18

97-98/99 Chevrolet, Pontiac J & N (LD9)(2.4T)
Part # 12462258 Version 1b
Application
1997-98 Chevrolet, Pontiac J (LD9)(2.4T)
1997-98 Chevrolet, Pontiac, N (LD9)(2.4T)
1997-98 Oldsmobile, Buick
1999 Pontiac N (LD9)(2.4T)
12462258 Version 1b replaces: 12465154 Version 1a
Order 11516479 self-taping screw for Camshaft Position Sensor. For 2nd design, see 12465154.
You can use either version 1a, 1b, or two in your car with little modification.


99-99.5-00 “99 model year”
*Half bread
*Large starter / Small starter
*One wire front O2 sensor
*High impedance Injectors
*No EGR Valve
*Domed Pistons / Flat Top Pistons
*9.5:1 CR / 9.7:1 CR
*Better intake manifold design. Doesn’t have flange on the inside plenum like all other years.
*New oiling passages
*Small or large knock sensor
*Head casting number is 779 and 683-18
*Old and new style water-pump


00-02 Model Year
*Small starter
*Three wire front O2 sensor
*High impedance Injectors
*No EGR Valve
*Flat Top Pistons
*9.7:1 CR
*New oiling passages
*Small knock sensor
*Head casting number is 779.
*New style water-pump

First off, welcome.

To your question, your car is a 2000 and the trans will only bolt up to another 2000+ engine, its the best one anyway.


PSN ID: Phatchance249

All LD9s have the same bell housing pattern. NVG, Isuzu, and Getrag will bolt up regardless of year.

however, since you are 2000, you will need a 00 + Motor.. (or 99 if and only if it came out of a J-body... other 99 LD9s from other vehicles will not work)

If you run a pre 2000 block, you will need to: Remove the EGR, run the 00+ Injectors, run the 00+ 02 sensor, and Heli-coil the knock sensor port (to run the 00+ knock sensor) (However, some of us are thinking the helicoil setup causes the PCM to pick up ghost knock... ).

Also make sure you run the Transmission thats in the car... Clyde is right in the fact that any LD9 transmission will bolt to the engine, and Shawn is right in the fact that only the 00+ transmission will bolt to the car (without having to reweld mounts)

Mystic02VA (GME Chat) wrote:however, since you are 2000, you will need a 00 + Motor.. (or 99 if and only if it came out of a J-body... other 99 LD9s from other vehicles will not work)

If you run a pre 2000 block, you will need to: Remove the EGR, run the 00+ Injectors, run the 00+ 02 sensor, and Heli-coil the knock sensor port (to run the 00+ knock sensor) (However, some of us are thinking the helicoil setup causes the PCM to pick up ghost knock... ).

Also make sure you run the Transmission thats in the car... Clyde is right in the fact that any LD9 transmission will bolt to the engine, and Shawn is right in the fact that only the 00+ transmission will bolt to the car (without having to reweld mounts)

PRND321 Till I DIE
Old Motor: 160whp & 152ft/lbs, 1/4 Mile 15.4 @88.2
M45 + LD9 + 4T40-E, GO GO GO

thx guys. 00 and up it is. I will be running the original trans, fuel rail, pretty much everything as i will just be swapping long blocks (with the head and timing components. This LD9 can be found in a cav, sunfire, alero and grand am correct?

1999–2002 Chevrolet Cavalier Z24
1999–2002 Pontiac Sunfire GT
2000–2001 Pontiac Grand Am
2000–2001 Oldsmobile Alero


Fixed





Edited 2 time(s). Last edited Wednesday, August 08, 2012 10:27 AM

PRND321 Till I DIE
Old Motor: 160whp & 152ft/lbs, 1/4 Mile 15.4 @88.2
M45 + LD9 + 4T40-E, GO GO GO

thx for the quick response but in my case for this certain application (00 and up) my options will be as stated prior just to make sure we're all on the same page.

Fixed for clarify.




PRND321 Till I DIE
Old Motor: 160whp & 152ft/lbs, 1/4 Mile 15.4 @88.2
M45 + LD9 + 4T40-E, GO GO GO

Mystic02VA (GME Chat) wrote:however, since you are 2000, you will need a 00 + Motor.. (or 99 if and only if it came out of a J-body... other 99 LD9s from other vehicles will not work)

If you run a pre 2000 block, you will need to: Remove the EGR, run the 00+ Injectors, run the 00+ 02 sensor, and Heli-coil the knock sensor port (to run the 00+ knock sensor) (However, some of us are thinking the helicoil setup causes the PCM to pick up ghost knock... ).

Also make sure you run the Transmission thats in the car... Clyde is right in the fact that any LD9 transmission will bolt to the engine, and Shawn is right in the fact that only the 00+ transmission will bolt to the car (without having to reweld mounts)

Seeing as how the question pertained to the engine being used the current transmission in the car was a non issue. Any year LD9 will bolt up to it. Technically Shawn was completely incorrect in his statement.

"To your question, your car is a 2000 and the trans will only bolt up to another 2000+ engine, its the best one anyway."

thx for the info guys, as an ex-dsm tooner im sure these are the same questions (like many dsm ones) that get beat to death time and time again.

Thanks for the clarification mitdr774, I knew the clutches/flywheels were different and figured the bell housings were different shapes/depths.


PSN ID: Phatchance249

You have to math the flywheel/clutch/ trans for what ever application you use. NVG and F23 should use the same flywheel (00+ 2.4 and at least W41 used the same flywheel) but the clutch itself may be different. Bell housing pattern remained constant though. All Q4 and TC engines should have the same pattern.

They are the same, you can also swap clutches (in my case a 92 LG0 clutch in a 01 LD9 car)
only the stepped flywheel of the mid 90's messed things up.


Chris




'02 Z-24 Supercharged
13.7 @102.45 MPH Third Place, 2007 GMSC Bash SOLD AS OF 01MAR08

I was not sure if the 2.3 and 00+ LD9 clutch would interchange or not. Good to know that its not just the flywheel that was the same.

well i got a long block w/ head and timing componets from the wrecker last weekend. 100 bucks. dropped it in and she runs great. thx for all your help guys

Mystic02VA (GME Chat) wrote:however, since you are 2000, you will need a 00 + Motor.. (or 99 if and only if it came out of a J-body... other 99 LD9s from other vehicles will not work)

If you run a pre 2000 block, you will need to: Remove the EGR, run the 00+ Injectors, run the 00+ 02 sensor, and Heli-coil the knock sensor port (to run the 00+ knock sensor) (However, some of us are thinking the helicoil setup causes the PCM to pick up ghost knock... ).

Also make sure you run the Transmission thats in the car... Clyde is right in the fact that any LD9 transmission will bolt to the engine, and Shawn is right in the fact that only the 00+ transmission will bolt to the car (without having to reweld mounts)

What is it that stops a 2.4 from say a 99 malibu from fitting into a 00+z , also curious on the whole knock sensor thing..does the 2k computer not know what a 99 sensor is doing or what?Just a diff plug-in?

I also ran a 96 LD9 in my old pos 01 z I had... find a random 10MM hole to cram the knock sensor in. good to go.

Chris


'02 Z-24 Supercharged
13.7 @102.45 MPH Third Place, 2007 GMSC Bash SOLD AS OF 01MAR08

You can use any LD9 in any year LD9....it depends on how much work you want to do...

Yes that is an open ended comment. Because it depends on what year you swapping from and too.




PRND321 Till I DIE
Old Motor: 160whp & 152ft/lbs, 1/4 Mile 15.4 @88.2
M45 + LD9 + 4T40-E, GO GO GO

Taetsch Z-24 wrote:I also ran a 96 LD9 in my old pos 01 z I had... find a random 10MM hole to cram the knock sensor in. good to go.

Chris

ORLY?



I choose the technology built for land speed records... not the technology built to save on emissions and gas mileage.

-MD- Enforcer wrote:You can use any LD9 in any year LD9....it depends on how much work you want to do...

Yes that is an open ended comment. Because it depends on what year you swapping from and too.

As in my example specifically) What makes a 99 malibu 2.4 not *Fit* in a 2k Z aside from egr valve , 02 and knock sensors . It is an Auto malibu going to a 5sp 2000 Z. Assuming i use only block and head retaining anything that has a wire going to it with the car.....

2KZ wrote:

Mystic02VA (GME Chat) wrote:however, since you are 2000, you will need a 00 + Motor.. (or 99 if and only if it came out of a J-body... other 99 LD9s from other vehicles will not work)

If you run a pre 2000 block, you will need to: Remove the EGR, run the 00+ Injectors, run the 00+ 02 sensor, and Heli-coil the knock sensor port (to run the 00+ knock sensor) (However, some of us are thinking the helicoil setup causes the PCM to pick up ghost knock... ).

Also make sure you run the Transmission thats in the car... Clyde is right in the fact that any LD9 transmission will bolt to the engine, and Shawn is right in the fact that only the 00+ transmission will bolt to the car (without having to reweld mounts)

What is it that stops a 2.4 from say a 99 malibu from fitting into a 00+z , also curious on the whole knock sensor thing..does the 2k computer not know what a 99 sensor is doing or what?Just a diff plug-in?

the 99 knock sensor has 3 wires and is bigger... the 00 knock sensor has two wires and is smaller... the pcms do not know how to read the knock from the other pcm's year...

i would say helicoil the 99 block to fit the 00 knock, but after what brad said somewhere... we may be getting ghost knock reported from this..

But thats it tho...the mentioning of mounts needing to be moved/welded was just for an incorrect <for car?> Trans...and no issue at all if keeping trans with car aside from knock sensor?..and removal of EGR?...can i leave it alone and just not plug anything into it / plug off any ports? or need make a blockoff plate? Only reason i ask is first part of statement where you said ONLY a 99 2.4 from a J will work...is that just to mean to bolt in,no wiring changes to be made? Well i guess it was more the part where you said *other 99 LD9s from other vehicles will not work*. I have a chance to get a fairly low mileage 99 malibu 2.4 for cheap and just want to be sure it will work with minimal modifications

-Z Yaaaa- wrote:

Taetsch Z-24 wrote:I also ran a 96 LD9 in my old pos 01 z I had... find a random 10MM hole to cram the knock sensor in. good to go.

Chris

ORLY?

Yep. Came out of Brian's cuz's car.

A ld9 is a ld9, after all.


Chris


'02 Z-24 Supercharged
13.7 @102.45 MPH Third Place, 2007 GMSC Bash SOLD AS OF 01MAR08

mitdr774 wrote:

Mystic02VA (GME Chat) wrote:however, since you are 2000, you will need a 00 + Motor.. (or 99 if and only if it came out of a J-body... other 99 LD9s from other vehicles will not work)

If you run a pre 2000 block, you will need to: Remove the EGR, run the 00+ Injectors, run the 00+ 02 sensor, and Heli-coil the knock sensor port (to run the 00+ knock sensor) (However, some of us are thinking the helicoil setup causes the PCM to pick up ghost knock... ).

Also make sure you run the Transmission thats in the car... Clyde is right in the fact that any LD9 transmission will bolt to the engine, and Shawn is right in the fact that only the 00+ transmission will bolt to the car (without having to reweld mounts)

Seeing as how the question pertained to the engine being used the current transmission in the car was a non issue. Any year LD9 will bolt up to it. Technically Shawn was completely incorrect in his statement.

"To your question, your car is a 2000 and the trans will only bolt up to another 2000+ engine, its the best one anyway."

The last part of this is scary too....