95RedSilvi

I'm knew to this site and just need a couple questions answered. I searched the site and it lead me to this thread. I have a L33 I'm currently rebuilding. I got the motor for free because the previous owner said it had a knock at 200k miles and didn't want to deal with rebuilding it and purchased a new one. I tore the block down and found the culprit of the knock. A collapse AFM Lifter. The main and rod bearings looked very good for surprising 200k miles. My questions are.
1. Not looking to run DBW set up and found a crank off summit for a GENIII motor with a 24x. I know this crank will drop right into the block but the Gray sensor needs to be switched out correct?
2. Is it recommended to replace the wrist pins and brass bushing in the rods. I am going to reuse the rods since they are the LS2 style rods I believe.
3. I can obtain a GenIII pcm to run the motor. But what's all needed to be done electronic wise to actually get it to run.(which valley cover, knock sensors, crank sensors and cam sensor)


I will have a TSP 224 cam installed with new bearings along with new bearings that match the new crank journals. Valve springs will be replaced with beehive springs. Thanks again

Paul Bell

iTrader: (9)

Welcome to LS1tech!

While LS crankshafts will pretty much freely interchange into any block, the reluctor ring needs to match the PCM in the vehicle it's going into.

If you have this engine on a stand and it has this mileage, it's smart to replace wear items such as bearings and also timing chain and oil pump.

You can re-use the pistons if they're in good shape. New rings and one of the drill mounted ball honers should prepare you for an nice new set of piston rings.

Don't forget a good washing!

I believe the pistons are press-on style to the pins.

Are you familiar and experienced with these motors? If not, doing some things wrong will ruin things-like the block or crankshaft. You will NOT be happy if things go awry.

What vehicle is this going into? Is it a LS based vehicle or a swap from old school?

joecar

You will need a x1 cam sprocket.

I assume you have the timing cover which mounts the CMP sensor.

95RedSilvi

I haven't purchased a PCM yet or a wiring harness. The motor is currently torn down on a stand.

All the wear items are going to be replaced. I Pistons look in excellent shape and the bearing had minimal scoring on them.

I'm going to take the block down to a local shop and have it hot bathed, cleaned up and cam bearing installed with the cam.

Now, everything I have currently is from the L33. Once I install the 24x crank. What year do you recommend I get a timing gear and cover from?

The piston pins are floating, there's two snap rings holding them in. Should the pins and bushings be replaced as well?

This motor will be swapped into a 1995 Silverado

showdog75

iTrader: (8)

Good thing the l33's had floating pins. A very good platform imo, basically a baby ls2.

JaxMustang50

iTrader: (1)

L33s have the 24x reluctor already. You're good to go with the stock crank.

95RedSilvi

Unless I've been mistaken about the motor. But it came with 799 heads flat top Pistons and has a 58x gear on the crank.

95RedSilvi

That's what I heard. And luckily enough I got the motor for free.

95RedSilvi

Yes I do, so just a early ls2 3 hole cam sprocket will do?

RonSSNova

iTrader: (3)

Sounds like it's not an L33.
Possibly an LC9 as they were alum 5.3 with AFM/DOD.

And no, you don't need to replace the piston pins.

Ron

95RedSilvi

Thanks Ron, do the LC9's come with 799 heads and flat top pistons? I will try to upload pictures when I figure out how.

95RedSilvi

Flat top pistons








200k miles later. Still see the cross hatching.





58x reluctor

This is when I first got the motor. It was very dirty on the outside. I have cleaned it up and had the cylinders honed .010" next I will have the motor hot bathed and get the cam bearings installed.

Paul Bell

iTrader: (9)

How are you going to control this engine? Stock donor harness and PCM or a new harness kit?

Are you planning drive by wire throttle or cable?

95RedSilvi

Going to buy a new harness from painless and get a PCM from Nelson racing. Now I'm going to swap out the crank to a 24x to do away with the DBW. the 58x crank I have needs to be micro polished. So I figured the price of that plus the Lingenfelter is roughly the same cost of a 24x crank and bearings.

95RedSilvi

OK, so further researching I was mistaking my motor for a L33. It is actually a LC9. the L33 do not come with AFM and the knock sensors are in the valley cover. My knock sensors are located on the side of the block.


So, with that being discovered. Converting the motor over to a 24x reluctor and a 3 bolt cam. What wires do I need to extend if extending is needed?

JaxMustang50

iTrader: (1)

That explains it. Good motor.

Paul Bell

iTrader: (9)

Our friends at Texas Speed offers Racetronic cam & knock sensor extension harnesses: http://texas-speed.com/c-1199-wiring...ID=0&pagenum=2

1FastBrick

iTrader: (16)

Going .010 over on the cylinders will require new pistons.

Is that measurement correct or are you sourcing new pistons?

95RedSilvi

Thanks that's exactly what I needed!

95RedSilvi

That measurement is correct. Any type of brand you recommend? The motor may see boost in a year or two.