I'm going to assume it's just another small block variant, right?

how are they for pulling? hoping to look at a 1-ton van that has a 5.3

They usually knock pretty good when cold-----piston slap

They usually knock pretty good when cold-----piston slap

yep common to all LS style engines.

alot of people complain on them being down on torque compared to the 5.7 they replaced. However, they respond very well to any mods and get killer gas mileage for a truck.

overall I think they're a very good motor..seem pretty reliable and decent in the power department. Are you looking at swapping it out of the van or you're going to use the van?

My buddy has a 5.3 with a pro-charger and that thing just gets it on. He picked up the charger used for $1000 on craigslist. 20 mpg.:D

Great motor, and I'd think a 1 ton van would have a 6.0 or 8.1??

Great motor, and I'd think a 1 ton van would have a 6.0 or 8.1??It could actually have the 4.8L/5.3L as well the vans got everything! Even the D-max.


Mo whats the VIN of the van?
This is just an idea of the Vin ID as it might vary from 03-07.
The 6.0L will have a U at the "8th" digit.
5.3L will have a T
4.3L will have a V

It could actually have the 4.8L/5.3L as well the vans got everything! Even the D-max.


Mo whats the VIN of the van?
This is just an idea of the Vin ID as it might vary from 03-07.
The 6.0L will have a U at the "8th" digit.
5.3L will have a T
4.3L will have a V

Yeah true you can pretty much get anything, I'v seen dmax vans, but never a 4.8 :laughing:

Yeah true you can pretty much get anything, I'v seen dmax vans, but never a 4.8 :laughing:
I seen one in an 03 express 2500 and it even had a 4l80! Man I bet the 4l80 ate all the 4.8's power!:D

I seen one in an 03 express 2500 and it even had a 4l80! Man I bet the 4l80 ate all the 4.8's power!:D

What power? :flipoff2:

i know of one that has 230k on the ticker and not one coin dropped into it yet. Still gets 21mpg too

I'll take a closer look at the van tomorrow or the next day. all I know about it is that it's a basic white passenger van with 3500 on the side and the dealer is asking 10k. I haven't called or stopped in, just seen it on the side of the road.

I'd be using it as is, mostly for family truckster duty, and possibly to pull a camper on occasion.

It could actually have the 4.8L/5.3L as well the vans got everything! Even the D-max.


Mo whats the VIN of the van?
This is just an idea of the Vin ID as it might vary from 03-07.
The 6.0L will have a U at the "8th" digit.
5.3L will have a T
4.3L will have a V
I'd love to find a passenger van with the duramax - I thought they were only in work vans though.

5.3 runs ok but the 6.0 is what you want. dont waste yer time with a 4.8 slow as forzen molases in the winter

Vans with the D-max is fucking tits man.
I think the 5.3 is a good motor I've heard good thing from people who own them.

5.3 runs ok but the 6.0 is what you want. dont waste yer time with a 4.8 slow as forzen molases in the winter\

Really not worth the trade off for the extra bit of power for the crappy gas mileage it gets. Not sure why they do so poorly mileage wise against the 5.3's.

\

Really not worth the trade off for the extra bit of power for the crappy gas mileage it gets. Not sure why they do so poorly mileage wise against the 5.3's.Think about it! The reason why they get shittier mileage is they are all in heavy ass trucks shaped like a fucking brick. And its how you drive it.

Shit look at LS2/3 vette's they get pretty good mileage 25-30!

A friend has a 00 Gmc 1/2 ton 4x4 and uses it for a work truck. It has 200K miles and runs awesome.

my '01 5.3 runs good, like IANSTEIN said they arn't amazing but it helps with a superchip and intake i pull my car trailer with my yota on it all the time. Beware of the fuel gauge though...

buddy of mine gets 18 on the high way with a standard transmission 6.0, with 410's whicih isnt bad.