The LS OBS...5.3 swap into 95 C1500 build thread.

209,805 Views | 677 Replies | Last: 4 yr ago by Silvy
Silvy
How long do you want to ignore this user?
AG
A 5.3 is nothing but a stroked 4.8, same bore.

If you want cubes, acquire a LQ4/9 bore out to a 4.030 bore and stroker crank. 408 doesn't sound too bad does it?
BigRobSA
How long do you want to ignore this user?
More than just the cubes, an LQ4 or 9 is an iron block and can take sh/t tons of boost or spray.

Yes, it's heavier, but it's what a lot of guys that run LS engines switch to when they want to get totes ridic with the boost.
Silvy
How long do you want to ignore this user?
AG
quote:
totes ridic with the boost.


Never change laugh/cry
moore42
How long do you want to ignore this user?
AG
408 is pretty easy from the LS6. I want more

Im thinking 418-427
moore42
How long do you want to ignore this user?
AG
Further research tells me i need an lsx block to get more than 418 safely. So i guess that answers that.
moore42
How long do you want to ignore this user?
AG
And it looks like on the 5.3 you can only go to about 3.800-3.900 bore. So there goes that theory.

lq4/9 is where you have to go for cubes over 400ish
95!RedSilvi
How long do you want to ignore this user?
quote:
I'll be hooking up the trans tomorrow and if time allows headers also.

http://i978.photobucket.com/albums/ae267/mrmason17/LS%20Swap/PC180724.jpg
I'm doing the same swap to my '95. Did the motor bolt directly to the 4l60e?
Silvy
How long do you want to ignore this user?
AG
Are you the same guy asking questions on YouTube?

Yes, the motor did mate with the LT style 4L60e. You'll need a crank spacer, flat flexplate (found on 6.0 from truck), and longer flexplate bolts.

From there, you'll need to elongate the TC bolt holes on the flexplate so that you can bolt the LS flexplate to the LT torque converter.

Having said all that, if you're building the truck to go fast, I'd upgrade to a LS style 4L60e since you'll have more stall options and they're slightly stronger.

I've blown two 4L60e's now, one of them technically being a built 4L65e. I'm saving to do a built 4L80e along with other goodies now.

Welcome to Texags Silvi
Flaith
How long do you want to ignore this user?
AG
TWO SILVIS DON'T MAKE A RIGHT

Silvy
How long do you want to ignore this user?
AG
You're just mad because no one has joined Texags to contact you
BigPuma
How long do you want to ignore this user?
AG
Do you have a 4L80e yet?
Silvy
How long do you want to ignore this user?
AG
No
Flaith
How long do you want to ignore this user?
AG
quote:
You're just mad because no one has joined Texags to contact you
bro...

http://texags.com/account/profile/123410
BigRobSA
How long do you want to ignore this user?
Flaith44's post are, like Flaith himself...pretty ****ing epic.
95!RedSilvi
How long do you want to ignore this user?
quote:
Are you the same guy asking questions on YouTube?

Yes, the motor did mate with the LT style 4L60e. You'll need a crank spacer, flat flexplate (found on 6.0 from truck), and longer flexplate bolts.

From there, you'll need to elongate the TC bolt holes on the flexplate so that you can bolt the LS flexplate to the LT torque converter.

Having said all that, if you're building the truck to go fast, I'd upgrade to a LS style 4L60e since you'll have more stall options and they're slightly stronger.

I've blown two 4L60e's now, one of them technically being a built 4L65e. I'm saving to do a built 4L80e along with other goodies now.

Welcome to Texags Silvi

No, that's not me. But I did see your videos and saw all the comments of people asking that specific question.

I was debating whether to order the monster kit for the stock 4l60e or biting the bullet and getting the 4l80e.

Thanks for the info though
Silvy
How long do you want to ignore this user?
AG
If you stay N/A, I think a properly built 4L60/5e will handle just about whatever you throw at it.

If you plan on boost or nitrous, 4L80e is the way to go.
Silvy
How long do you want to ignore this user?
AG


KY AG
How long do you want to ignore this user?
AG
Ecoboost swap?
Silvy
How long do you want to ignore this user?
AG
As longer as the weather cooperates, I'm making space in my garage this weekend. Finally going to pull the trans within the coming weeks.

big ben
How long do you want to ignore this user?
AG
This still isn't done?
Silvy
How long do you want to ignore this user?
AG
Never will be
big ben
How long do you want to ignore this user?
AG
Almost five years brah!
Silvy
How long do you want to ignore this user?
AG
Just ordered the 4L80e.

kmac30
How long do you want to ignore this user?
AG
quote:
Just ordered the 4L80e.




Any other details about racetruck's new tranny? When is expected delivery?
Silvy
How long do you want to ignore this user?
AG
Builder rates it to 1000 horsepower, hopefully my last trans swap. All parts for swap won't be available till after Thanksgiving, I'm going so say it's 2-2.5 weeks out accounting for shipping.

I've been speaking with Circle D for a TC, looking at a 3200-3400 stall speed and a size of 9.5". With that stall speed, I won't be blowing through the converter too bad when on nitrous and since it's a 9.5" it should hit hard both N/A & on the juice when it's time to boogie.

Next build after trans swap will be the rear end. A 4.30 gear should be fun.
Flaith
How long do you want to ignore this user?
AG
hey Silvy, do you want another project?

http://houston.craigslist.org/cto/5344074360.html

You could probably flip that with a junkyard engine swap, and fund other things.
Silvy
How long do you want to ignore this user?
AG
As much as I'd love another project, I need to focus on #RACETRUCK.

If I were to pick up another project, it'd likely be a C10.
Salt of the water
How long do you want to ignore this user?
AG
Pretty clean interior for a 20 yr old vehicle. I've been toying around with the idea of a project burb for a while. Anybody got ballpark #s for ls swapping that thing?
Silvy
How long do you want to ignore this user?
AG
Cost really depends on how much work you want to do and how fast you want go.

Find a good deal on your parts and you could be looking at $1,500-2,000 for a no frills swap.
Salt of the water
How long do you want to ignore this user?
AG
Would be a beach rig so definitely no frills. Thanks for the #s.
Silvy
How long do you want to ignore this user?
AG
#RACETRUCK has been on stands for weeks waiting on the trans.

Silvy
How long do you want to ignore this user?
AG
slow_obschevy
How long do you want to ignore this user?
Hey everybody im new to this forum. Ive been reading about the build for a couple days now and love it! I have a 92 Silverado Ext Cab and want to do the same swap into mine sooner or later.
Silvy
How long do you want to ignore this user?
AG
Post a thread about your truck, GMT400bro.
The Wonderer
How long do you want to ignore this user?
AG
quote:
Hey everybody im new to this forum. Ive been reading about the build for a couple days now and love it! I have a 92 Silverado Ext Cab and want to do the same swap into mine sooner or later.
low or no low
 
×
subscribe Verify your student status
See Subscription Benefits
Trial only available to users who have never subscribed or participated in a previous trial.