firebird99

iTrader: (2)

Well guys i have been searching for new motor and i came across this and was wondering what you guys thought. It seems like a good deal to me i just dont know how hard it will be to swap over from my ls1 heres the specs on the short block only no heads (6.0L iron block , Stock Crank And Reconditioned Rods w/ARP Bolts,NEW ARP Main And Head Studs,NEW Diamond Forged Flat Top Pistons, NEW Custom Crane Cam 228/236 @.050 .624/.600 Lift on a 114 , NEW GM Lifters, New Lifter Trays, NEW Cloyes Dual Roller Timing Chain, NEW SLP Oil Pump And Pick Up, New Camaro Oil Pan And Windage Tray NEW Knock Sensors And Oil Pressure Sender,New Cometic Head Gaskets. Motor Is Fresh Never Had Oil Put In It.$1200.00) I have also found a set of stocks heads with a fresh rebuild for $325 at a local machine shop i guess a guy never came back to get them and they want them gone so for a grand total of $1525.00 minus all the little things for a new motor i think i will be doing pretty good just need to know what i need to make the swap thanks....Charles

MikeZ06402

Off the top of my head I think the intake is different, knock sensors are relocated, map sensor is relocated (although not positive about this one), make sure your cam reluctor matches your PCM. If you are going with the LS2 specific injectors then you will need to use an adaptor harness as LS1 and LS2 injecotrs are different.

With all that said I am basing my inputs on an aluminum block 6.0L, things may be a little different for the iron block casting.

Anyone else feel free to correct me as it has been over three years since I did my rebuild and the memory isn't as good as it used to be . Thanks

Scooter76

Great deal , go for it !!! most of the stuff will swap over with no problems..... the knock sensors are located under the intake on your ls1 , just use the ls1 valley cover on the new motor.... im not sure about my reluctor wheel but i think its of my old ls1 also , ( I bought my car with the swap was already done ! ) it looks like a straight forward swap ! I wouldnt pass that deal up , if it is what they say , you wont be dissapointed ! With that cam you will need a 3500 ish converter to get the most out of it ....

smok'nZ

iTrader: (160)

great deal it happens sometimes i saw a 370 go for 1500 before

Blknight6989

iTrader: (2)

Sounds like an awsome deal!! I would ****** that quick, everything is pretty much a direct swap over on these. Im picking up the same motor with all ls2 internals for about the same price so Im right there with you!

Pwebbz28

iTrader: (31)

Only difference is the alternator mounting. You will need to drill and tap a hole for the alternator if you want it to have more than two bolts holding it on.

firebird99

iTrader: (2)

Ok so i called the guy today and he told me he also has l92 heads with new valves,dual valve springs,titanium retainers,rocker arms with all bolts and stands the (l76)intake manifold with injectors fuel rail and throttle body and the heads are ported by himself but he works at a machine shop as an engine builder so im pretty sure he knows what he's doing plus he has all reciepts and spec sheet for the build and hes asking $2500.00 for everything complete i cant wait to go pick it up what do you guys think?


Plus the motor is now 375ci's

smok'nZ

iTrader: (160)

well if he said it has an ls2 intake he doesnt know something, maybe he meant L76 intake it looks like the ls2 but it went from 1525 to 2500? looks like he did some homework, id offer 2k if i were you i know the bill was probally about 1k

Fb0dy0nly

iTrader: (10)

...these are brand new parts fyi
lets say he got the block for 300, chain 100, rockers 300, oil pump 200, cam 300, heads 500, arp everything 200, hmm and I am probably missing things too and these are low prices... I guess I dont know how to do math anymore or Im looking in ALL the wrong places...

hotswap

iTrader: (3)

Check into this a little further. The LS2 intake manifold is not compatible with the L92 heads. Have the heads been milled? If they haven't then you're looking at around a 70cc combustion chamber and 10.4 to 1 CR on a 6.0 with flat top pistons. It's not ideal to boost and a little low for max power in an NA motor(IMO). What are the other heads he has 317's, 243's? It depends on what you're planning to do as to where you go with this deal. If you can work out a good price that could be a nice little 370 NA street motor with that cam and L92 heads. Just figure out the intake situation before you end up with parts you can't use.

firebird99

iTrader: (2)

I made a mistake typing that one i called him back and he reconfirmed that it is a l76 intake..sorry my bad and the reason the price went up is because it includes the the heads and intake. If you look at my first post it was 1200 for the shortblock and 325 for a different set of heads i found on craigslist not the ones im getting with the shortblock
yes all parts are brand new except the block,crank,and rods

Yes the heads have been milled plus its not useing the stock pistons it has diamond forged pistons that stick out a little bit but he has the cometic gasket to make up the difference he said comp will be 11.0 to 1 and the heads are 243's

smok'nZ

iTrader: (160)

no i meant the guy who took the motor to the machine shop to have alot of work done either rebuilt or built from scratch but im saying his bill to the machine shop was probally just over a grand and i know quite a bit on how much it costs to build s 408,370,416 etc i owe the my machine shop 755 tomorrow as it is

firebird99

iTrader: (2)

Just to clear that up the guy that im getting the motor from works at a machine shop so im sure labor wise he has no money in it just time

firebird99

iTrader: (2)

Ok so i was surfing the web and i came acroos an article that says that 1 1999 lq4 and 2000 and newer lq4's have a different length at the back off the block because the cransk are different lenth's is this true?This is the article i was talking about (Be careful buying that motor. The 1999 model LQ4 had a different length crank and came with iron heads. It won't be a direct bolt-in. In 2000, they swapped to the much better aluminum 317 casting heads and changed the crank out for the same one in the 5.3 and 5.7 motors. That made the 2000+ LQ4 motors a direct swap. The only real way to easily tell these motors apart is by the heads they came with, as the block and pistons are the same. If you physically have access to the motor, you can measure the back of the crank where it would mount to the flexplate. The 1999 model is about 1/4" longer than the others since it was designed for the 4L80. If its got the flexplate on it, the 2000+ models will have a 1/4" spacer between crank and flexplate, the 1999 won't.

In the past, I've seen several 1999 LQ4 motors on ebay where the seller has either removed the iron heads or replaced them with LS1 heads. Then they claimed ignorance or lied about the year model it came out of. Usually, a 1999 model LQ4 will sell for much less than a 2000+ model.

Of course if you are moving to a 4L80E transmission, it won't matter at all)

SweetS10V8

iTrader: (4)

How did he recondition the rods, LS rods are cracked so the rod and cap fit are specific to each other. Typical reconditioning of rods wont work on cracked rods.

If the L92 heads have been milled you will have to be extra careful about checking piston to valve clearance.

firebird99

iTrader: (2)

That i dont know which is why i was thinking about not getting it and rebuilding my ls1 with afr's and a ls6 intake unless you guys can give me a reason to buy it anyways??????

NastyC6

iTrader: (77)

You have to use thicker bearings. just like if you machine the crank journals.
I've done a dozen sets w/ Arp bolts. good enough for 500hp

firebird99

iTrader: (2)

So should i just buy the short block with all the reciepts and build sheet for 1200 or get that plus l92 heads intake complete for 2300 then take it to my machine shop and have him finish it for me? i would ove to get it but i dont know what it will take to complete it i.e. motor and swap

Unertl42

iTrader: (63)

here is a walk through that I used

http://www.ls2.com/forums/showthread.php?t=626014

It isn't that hard, you can either swap your crank in it, or buy the 58x-24x converter box from Lingenfelter. Other than that, it isn't too bad.

firebird99

iTrader: (2)

WOW if that didnt make it even harder on me. I wish there was a sticky for just the lq4/lq9 swap it would make this alot easier becasue i really want the extra cubes and power it will make down low but i have no clue what it will take to swap it. I thought i only needed knock and cam sensor extensions then you throw in the reluctor wheel wtf i cant catch a break some please help, thanks again guys for the help and being patient with me im new to the ls game and theres way more to them than the old sbc swaps ive done in the past