[MasterJacko96]

ive been thinking about someday down the road finding a 96+ 6th gen monte with high miles to redo and put a 5.3 in there BUT i would like to maybe use a bigger block if possible or get more displacement. Then use some sort of Ls1 or ls6 top end and build it up. rwd is an idea id like to look into someday but i was thinking just making it like and 06+ monte on the inside like the dash and console somehow maybe not the interior for sure but i would like to drop a 5.3 in there and build it up maybe have it fwd since it be easier and build up the trans of course. who else has thought of doing somthing similar lets all discuss ideas and options

[BrOnXxBoMbAz213]

MasterJacko96, on Dec 14 2007, 03:48 PM, said:

ive been thinking about someday down the road finding a 96+ 6th gen monte with high miles to redo and put a 5.3 in there BUT i would like to maybe use a bigger block if possible or get more displacement. Then use some sort of Ls1 or ls6 top end and build it up. rwd is an idea id like to look into someday but i was thinking just making it like and 06+ monte on the inside like the dash and console somehow maybe not the interior for sure but i would like to drop a 5.3 in there and build it up maybe have it fwd since it be easier and build up the trans of course. who else has thought of doing somthing similar lets all discuss ideas and options

if you want custom yeah its a cool project and all... but in all seriousness.... with the money youd spend it wouldnt be worth it IMO..... especially if youre talking "Some day down the road" id just get an ss used in a few years, and then you could tweak it from there.... youd probably spend around the same money if not less, and in the end come out with a much newer much nicer car; no headaches and months of agonizing work

[nitehawkjcb]

It would be an awesome project - at an awful expense. I would be proud to own such a car, but it shouldn't be that much more work than Bedivere's Northstar Monte - although that was a lot ... A TON... of work.

[bumpin96monte]

I don't know if the car block is any different, but I could've swore the 5.3 truck engine (LM7, etc) could be overbored to LS1 bore. I thought it was crazy the first time I heard it, and its like .120 overbore- but the strokes were the same with the LS1. Dunno if its the same way or not with the transverse 5.3 because I think its a different block- not sure if they changed stroke/bore from the truck engine or not.

[Manitcor]

bumpin96monte, on Dec 14 2007, 04:39 PM, said:

I don't know if the car block is any different, but I could've swore the 5.3 truck engine (LM7, etc) could be overbored to LS1 bore. I thought it was crazy the first time I heard it, and its like .120 overbore- but the strokes were the same with the LS1. Dunno if its the same way or not with the transverse 5.3 because I think its a different block- not sure if they changed stroke/bore from the truck engine or not.

I think you can increase the bore on the ls4 but I certiainly wouldnt want to go for a bigger block. It should drop in ok but you will have some intresting exhaust and intake routing puzzles. The wiring and programming will also be intresting as the PCM relies on the BCM to work but you might be able to work around that by user an older truck PCM.

Yeah now that I think of it the wiring will be the most challenging part.

[96mcls]

you bore out an aluminum block, but cost wise it isn't worth it, and you wont get much out of it. ie you can't get a ls4 block even close to ls1 specs, as far as stroke go all gen3 have the same stroke except the 4.8l(which is just a destroked 5.3 with crappier heads). and yes you can bore an cast iron 5.3 block to an ls1 specs for very very cheap, plus the blocks themselves you can find for like $50 and are alot stronger than aluminum, the only down size is it's heaver, but only ~60 lbs heavier than an ls1 block, which would make the whole engine a little heavier than a l67 so you really cant complain. also the ls4 block it's self is a basturd child SBC, it has the gm v6 bell housing pattern on it, and is the only SBC that comes with that bell housing bolt pattern. so if you did go with a different block it would need further work to work with a FWD transmission.

a very common gen 3 build for cheap is this: people buy a 5.3 long block with something like a spun bearing, common problem, but not very common, on 5.3s, blocks still good and you can get it cheap because of the spun bearing. then they also get a ls1 short block with a aluminum casting problem, pretty common one is the bosses for the starter like to crack, so the internals are still good but the block is bad so you can get it pretty cheap. or you can just buy the ls1 internals off someone who had built an ls1. then you take the 5.3 guts and due what you please with them, trash/sell, and machine the block to ls1 specs and then use the ls1 internals. now the part as to why you bought a 5.3 long block, the 5.3l heads give you added compresion over ls1 heads. as for intakes it more a problem of hood clearence, truck intake manifolds yeild a few more horses over a ls6(00+ls1 intake) intake but doesn't work in many applications, and truck intakes are ugly.

This post has been edited by 96mcls: 14 December 2007 - 10:26 PM

[hcomplyr]

as far as wiring is concerned I can only imagine the hassle that would be but if I ever got the time, place, and money to do it I would do it.

*sigh* i need a garage

[famousmonte98]

the 5.3 in the new monte's i believ are mounted the same ans also use the same transmision as the 3.8, the 46te...6 or whatever

[Manitcor]

famousmonte98, on Feb 19 2008, 11:35 PM, said:

the 5.3 in the new monte's i believ are mounted the same ans also use the same transmision as the 3.8, the 46te...6 or whatever

IIRC the LS4 gets a different trans however I dont remember which model. However in a swap you could possibly use a beefed up 4t65e

[hcomplyr]

its the 4t65e but with a reworked starter and some beefed up parts

[3800_Beast]

So would a 5.3 work in my 6th gen?

[Manitcor]

it would be an easier swap however the 5.3 uses a very different ECM+BCM combaination that the earlier 6th gens (2000-2005). So there are some wiring challenges however less than what a 5th gen would have to deal with.

[3800_Beast]

Would the wiring be very difficult or could a good mechanic do it? What all would I need to get the 5.3 in?

[me6894]

3800_Beast, on Feb 29 2008, 01:45 AM, said:

Would the wiring be very difficult or could a good mechanic do it? What all would I need to get the 5.3 in?

A good mechanic would be able to figure it out, but it would probably be time consuming

[bumpin96monte]

You're gonna get raped taking it to a mechanic to do. Whats the current hourly rate for a shop? I figure $50/hr would be stupid cheap per hour (we were charging $60/hr at CC for troubleshooting and repair work from other shops).

Unless you're loaded, I wouldn't even think about having a mechanic do the work- the cost of a 5.3 is bad enough, not to mention labor costs.

[3800_Beast]

The shop I go to for everything charges 45 an hour so I guess its pretty cheap. I was just wondering for future reference. Someone is going to eventually do it.

[BrOnXxBoMbAz213]

get an 06-07 ss.... and swap a 00-05 front end and tails on it... thatll be alot easier

[3800_Beast]

Lol, yes this is true, but putting a V8 in an 00-05 is something people wouldnt see coming on the streets.

[MiKe0589]

3800_Beast, on Mar 1 2008, 01:46 AM, said:

Lol, yes this is true, but putting a V8 in an 00-05 is something people wouldnt see coming on the streets.

or better yet, put one in a 98 LS

[BrOnXxBoMbAz213]

3800_Beast, on Mar 1 2008, 01:46 AM, said:

Lol, yes this is true, but putting a V8 in an 00-05 is something people wouldnt see coming on the streets.

lol yeah thats what i mean.... revert the front end back to the 00-05, and put the 00-05 tails on... they should swap no problem.... ur the only one that has to know its an 06 or 07 though hehehe

[3800_Beast]

Lol, well my Monte is one of a kind, only 3,333 made, but I do beleive that Dale would of wanted a V8 put in it.

[hcomplyr]

Quote

Lol, well my Monte is one of a kind, only 3,333 made, but I do beleive that Dale would of wanted a V8 put in it.

how true

it actually might not be as hard as you think the standard PCM has unused pins that with the correct PCM and the added wires to the harness could run the extra 2 injectors, DOD might not work but everything else should work just fine

[Dante]

MiKe0589, on Mar 1 2008, 02:09 AM, said:

3800_Beast, on Mar 1 2008, 01:46 AM, said:

Lol, yes this is true, but putting a V8 in an 00-05 is something people wouldnt see coming on the streets.

or better yet, put one in a 98 LS

you buy the parts, Ill supply the car! But I get to keep it

[hcomplyr]

Muahahaha I just scored the wiring diagram for the LS4 doesn't look too bad

like I said LS4 engine, LS1 wiring harness, W-body harness, F body PCM and you sould be golden

This post has been edited by hcomplyr: 26 March 2008 - 12:33 AM

[BrOnXxBoMbAz213]

hcomplyr, on Mar 26 2008, 01:27 AM, said:

Muahahaha I just scored the wiring diagram for the LS4 doesn't look too bad

like I said LS4 engine, LS1 wiring harness, W-body harness, F body PCM and you sould be golden

DO IT!

[nitehawkjcb]

BrOnXxBoMbAz213, on Mar 27 2008, 11:23 AM, said:

hcomplyr, on Mar 26 2008, 01:27 AM, said:

Muahahaha I just scored the wiring diagram for the LS4 doesn't look too bad

like I said LS4 engine, LS1 wiring harness, W-body harness, F body PCM and you sould be golden

DO IT!

I'll agree with this guy.

[MasterJacko96]

what they said

[NiftyMonte]

all agreed hcomp will do it say I. "I" done deal you have to do it now, sorry, no complaining, just go f'in do it!!!
GOOD DAY...




I SAID GOOD DAY!!!


(sorry i am so freakin bored in my class)

[hcomplyr]

If I found an LS4 and another monte for cheap I would

[camaroguy]

do it.

heres help:

http://www.trader.ca/powerpage/details.asp...mp;adid=6839257