69blackwhss

iTrader: (9)

Hey guys I have a 2002 trans am. Did a cam swap kit an I have some blow by in most of my Cylinders. So guess its time to start working on a game plan for what to do.

Thinking about just getting a 6.0 motor. Been told to just get the lq9 2002-2007 years out of a Escalade an it will be the easy way about swapping motors to the trans am...

I can't find a good deal on the lq9. That has 80k an under lol unless I pay over 2k for one. My problem is I pay an get it an it would have more problems then my ls1

So my question is if I get a 2002-2007 lq4 an have it Machine an checked out an got a master re-build kit for a lq9 would this work? Guess u can say my question is can I turn a lq4 into a lq9. They only thing I know that is diff is the Pistons.

An if anyone could tell me what their Machine work cost them to do the same set up that would help.

Am going to use my ls6 intake an my 241 heads and everything else I can swap over from my ls1 so guess that means I just need a short block since I have the top end.

Thanks for any info guys.

niscur29

Yes it will work the way you want.

My machine work was about $200 bucks for a hone, hot tank, checkout. This was for an LQ9 but its the same block. I dont know if they make aftermarket flat top pistons for non floating lq4's so you may want to check on what year lq4's have floating pistons.

69blackwhss

iTrader: (9)

Thanks for the info. I don't mine to get new pistons/ rods to make it a lq9. I have seen a master rebuild kit on eBay that gave me the idea of just re-building
I think that kit was 1,200.00 but we all now eBay ain't the good stuff haha so I though 1800.0 for some good Quality items an say 600 for the block then the Machine worki should have a new lq9 for under 3k that should make 400 goat the flywheel with my headers tune an a cam with the ls6 intake an 241 heads also thought about getting the valves a 3 Angle valve job if it would help any that is. I did this on my bbc back in the day but am not up to date on these lsx motors what to do an not to do

69blackwhss

iTrader: (9)

Any one have any info of a good Rotation kit out there to be stock Compression.

niscur29

If you are looking at spending that much contact Thompson motorsports. I think they sell a complete 370 short block for about the same as you have priced out. I was going to go with them but thought I could build mine cheaper and in the end I should have just gone with a complete shortblock for the time, money, and effort I have in mine.

thompson

iTrader: (4)

We can send you a 370CI LQ9 block blueprinted with TMS Hypereutectic pistons, Floated rods, Balanced crank, King racing main and rod bearings and durabond cam bearings with no core for $1999. Why go through the trouble of searching for parts when you can let the pros do it for the same price. Let us know if we can help you with your motor.
If you call today we have some in stock that can still make it on the truck headed your way today.

69blackwhss

iTrader: (9)

Would it be 2002-2007 block? Everyone has told me that was the year ill need to be a easy swap in the trans am.... Something to do about the crank? Any warranty on the short block?

HCI2000SS

iTrader: (2)

OP, I just recently went with Thompson Motorsports 370CI LQ9, and couldn't be happier! What you get for the price is hard to beat

bww3588

iTrader: (49)

Even if it's a 99-01 block, nothing changed. Unless you get a newer gen4 engine without the cam sensor boss. Then it's labeled the ly6.

Any year lq4/9 will swap right in, no problems except the missing alternator bolt hole that has to be drilled and tapped.

69blackwhss

iTrader: (9)

My tuner an other big lsx guys said the 99-01 crank was shorter r longer can't remember which one they told me. They said to make sure to only get the 02/07 years. They said all my Sensors and connections an harness, an my clutch will bolt rite up to them. They only thing I really need is the short block an swap everything else from the old ls1 to the new lq9.

Burken01

iTrader: (88)

Dang that's a good deal on the Thompson shortblock, sure beats waiting for 2-3 months while your engine is bouncing around between the machine shop and engine builders shop with the typical delays that go with it..

bww3588

iTrader: (49)

Which if you're getting a Thompson short block, it doesn't matter. I guarantee you, they don't use the long cranks.

Also, only SOME 99-00 6.0's got the long crank. Not all. Most had the spacer.

bww3588

iTrader: (49)

So ruling out all 99-01 engines based on that is senseless. Just take a quick glance at the rear crank flange and see if it's longer or not. Chances are, you can score a better deal on an older engine.

Also, all your sensors and wiring will work with any gen3 engine. For the 6.0's you're interested in, it would be 99-07. With the short crank of course.

LS1MCSS

iTrader: (18)

99-00 cranks stick out the back .400 farther. Stay away from those cranks to keep from having installation troubles. Your best bet is to get the 370, with 24X reluctor, from TMS.

bww3588

iTrader: (49)

Again, some are longer, not all.

69blackwhss

iTrader: (9)

Just wish they would give forum members a little but of a discount haha 2,000 for a short block that's rebuild an ready to use for the most part ain't bad But the core 400 an then 315 to ship to me is a little more since I don't have a core lol. But all an all still a fair deal guys u know what ur getting. Then going with a used 80/90k mileage motor pull out since they are going. For 1,700-2,300 an u could get them an even be worth less Going to call them Monday after work an talk to them.

PREDATOR-Z

I've seen LS1 short-block at Thompson for $2500

69blackwhss

iTrader: (9)

Yea but why not go bigger if u can haha

bww3588

iTrader: (49)

Because bigger cubes does not always equal a faster car. The ls1 is 110 lighter than the iron 6.0. That's roughly a tenth off your et.

garygnu

if your current ls1 short block is good ,maybe consider get a 383 ls stroker rotating assembly .