so i just bought a 5.3 chevy truck for my swap

[flamingchicken]

As it says i just bought the whole truck, $1500, wrecked in the rear. Now i just need a couple pieces of information.

1. Do i have to change the piece that the motor mounts to, (k-member?)

2. Do i need to change the radiator?

3. Is the output shaft the same, or do I need to change the yolk?

if you can point me in the right direction it would be great, google only brings up forums where people are talking about doing the swap, not actually doing the swap.

it would be the same as a LS1 swap right?

Also, is the gearing the same in the V8 4L60E as the V6 one?

[cam98aro]

Re: so i just bought a 5.3 chevy truck for my swap

1. yes
2. if this is a v6 donor car, yes, an ls1/lt1 rad will work with a small block
3. not sure, what exactly are you doing transmission wise?

take a look at ls1tech in the SBC/BBC forum, there is a ton of people who have done a swap, and a LOT of useful stickies

[Meatyshells]

Re: so i just bought a 5.3 chevy truck for my swap

it is pretty much the same as an ls1 swap, let me know how this goes i really want to do this swap

[devilsalmostfree]

Re: so i just bought a 5.3 chevy truck for my swap

hey man, heres u a link for some 3.8 to ls1 swaps, http://www.ls1tech.com/forums/search.php?do=process the info should be pretty much the same for the 5.3. ur going to need:ls1 k-member, more then likely the ls1 steering knuckle, wiring harness, pcm, 93-02 Z28/trans/am rear end, u will have to get a crossmember made more then likely, might want to get the 99-02 ls1 fuel set-up, tank, harness to the fuel pump, fuel pump, sending unit! i think it would be safer to get an ls1 tranny, im not sure if the v6 input shaft would work with the 5.3! the difference from the 5.3 to the ls1 is stroke i think, might be the bore, but from what i have read the block is the same as an ls1, except for it being iron! best of luck!

[flamingchicken]

Re: so i just bought a 5.3 chevy truck for my swap

ill try to make a documentation of what i have to do.

The trucks also have 4L60E trannys in them, so i guess there wont be a problem with the output shaft.

I located the k-member today, it'll have to be shipped from georgia.

If anyone has anything to add, feel free.

[ssms5411]

Re: so i just bought a 5.3 chevy truck for my swap

Good luck with the swap.

[flamingchicken]

Re: so i just bought a 5.3 chevy truck for my swap

hey man, heres u a link for some 3.8 to ls1 swaps, http://www.ls1tech.com/forums/search.php?do=process the info should be pretty much the same for the 5.3. ur going to need:ls1 k-member, more then likely the ls1 steering knuckle, wiring harness, pcm, 93-02 Z28/trans/am rear end, u will have to get a crossmember made more then likely, might want to get the 99-02 ls1 fuel set-up, tank, harness to the fuel pump, fuel pump, sending unit! i think it would be safer to get an ls1 tranny, im not sure if the v6 input shaft would work with the 5.3! the difference from the 5.3 to the ls1 is stroke i think, might be the bore, but from what i have read the block is the same as an ls1, except for it being iron! best of luck!

there is no need to change the rear end, they were all relatively the same for all the cars, difference being the gears and lsd, and the cross member should work. tranny bolts up in the same place, the motor sticks out further in the front. the only think i need fuel wise is the pump in the tank for more volume. the tranny from the 5.3 truck is a 4l60e, so the out put shaft to the drive shaft will work.
i also have to change out the intake side of things to an ls1, and get a cable pedal assy. and change the oil pan. this is starting to add up....but im bolting in 290 hp.... ill let yall know if i quit.

[devilsalmostfree]

Re: so i just bought a 5.3 chevy truck for my swap

ya cant quite, just take ur time & get ur parts. atleast u can still drive ur car until u actually get the engine ready! u can get an ls1 oil pan fairly cheap from gmpartsdirect.com, ls1tech has alot of part #'s. i was told to get the non-traction control throttle cable, but that is for my 94 Z28, so i dunno what u would need.

[flamingchicken]

Re: so i just bought a 5.3 chevy truck for my swap

yea, well thats why im looking into the swap, i blew the motor up...well, the right side anyways, no compression, water in the oil, nasty mess. Im driving the beater for the time being

[Shodown]

Re: so i just bought a 5.3 chevy truck for my swap

If you didnt get the tranny with the 5.3 motor, you will need to get one (or one from a Z28 or T/A). The 5.3/5.7 WILL NOT bolt up to a 4L60e that came from a V6. The bolt pattern is different on the bell housing as well as some of the guts.

BTW, dont forget a new gauge cluster (so your speedo and tach work correctly) and front suspension (for the added weight).

Seems like a real waste of time and money for the swap if you are going to keep the stock open differential rear with 3.08's too...but thats just me ;)

[loser]

Re: so i just bought a 5.3 chevy truck for my swap

If you didnt get the tranny with the 5.3 motor, you will need to get one (or one from a Z28 or T/A). The 5.3/5.7 WILL NOT bolt up to a 4L60e that came from a V6. The bolt pattern is different on the bell housing as well as some of the guts.

BTW, dont forget a new gauge cluster (so your speedo and tach work correctly) and front suspension (for the added weight).

Seems like a real waste of time and money for the swap if you are going to keep the stock open differential rear with 3.08's too...but thats just me ;)

correct. ls1 springs should be good, along with a bigger sway bar,and yes id advise you to go LSD in the gear at the least. you can find another f-body rear with a lsd or a s10 rear end with better gears.

[David8399]

Re: so i just bought a 5.3 chevy truck for my swap

i know that to swap that 5.3 drive train in you are going to need the accesories off and ls1 car and the oil pan. you may also need the ecm from an ls1 car

[flamingchicken]

Re: so i just bought a 5.3 chevy truck for my swap

If you didnt get the tranny with the 5.3 motor, you will need to get one (or one from a Z28 or T/A). The 5.3/5.7 WILL NOT bolt up to a 4L60e that came from a V6. The bolt pattern is different on the bell housing as well as some of the guts

.

i got the whole truck...

Seems like a real waste of time and money for the swap if you are going to keep the stock open differential rear with 3.08's too...but thats just me ;)

already have 3.42 and lsd, GU6 and G80 are on my vin codes

[flamingchicken]

Re: so i just bought a 5.3 chevy truck for my swap

i know that to swap that 5.3 drive train in you are going to need the accesories off and ls1 car and the oil pan. you may also need the ecm from an ls1 car

oil pan, intake, throttle body, springs, and one thing i totally didnt know, steering rack, fuel pump (although they are the same rate, the volume is different or something like that) i have done my homework....i wont need the ecm cause i read somewhere that the LS1 have different injector pulse rates (not sure if it is true or not) plus i have the one from the truck, and the wireing harness as well. i havent even pulled engines yet, im gathering parts atm

[Shodown]

Re: so i just bought a 5.3 chevy truck for my swap

.

i got the whole truck...

Good :tup:

.
already have 3.42 and lsd, GU6 and G80 are on my vin codes

Again...good :tup:

haha