LS me

DEEZUZ

Escrow shortage crew
Donating Member
Joined
Nov 20, 2008
Messages
44,741
Reaction score
673
Location
NWI
Who are the LS nut singers around here? I know [MENTION=4687]Donnie[/MENTION] is building one, basically what I'm lookin for is help matching cam and heads and also parts hunting and also general swap info
 

DEEZUZ

Escrow shortage crew
Donating Member
Joined
Nov 20, 2008
Messages
44,741
Reaction score
673
Location
NWI
5.3 truck block. What are the best budget heads to toss on. I already have a cam, will update specs on it later. Going to delete the DOD, LS7 lifters, most likely ARP the rods. But thats about it for the block itself, it's a 0 mile motor.

What's the best harness to use along with PCM?

I plan on running this setup through a 700r4, I was told I needed just a different flex plate to make that work out. Ideally 6 speed, but that won't be in the funds
 

DEEZUZ

Escrow shortage crew
Donating Member
Joined
Nov 20, 2008
Messages
44,741
Reaction score
673
Location
NWI
Comp Cam LSL lobe 231/235 .617/.620 113 +3
 

Great White Drake

You used to call me on my cell phone
Joined
Jun 23, 2010
Messages
4,631
Reaction score
160
243 I would think. 5.3's don't have a 4" bore to run the bigger valve heads.
 

Spivitz

The Throttle is ur friend
Donating Member
Joined
Oct 5, 2012
Messages
22,453
Reaction score
417
Location
60191
Updating the Iroc
........:bowdown:
 

Great White Drake

You used to call me on my cell phone
Joined
Jun 23, 2010
Messages
4,631
Reaction score
160
Well that may be the case but I do run 4.000 heads on a 3.900 block fwiw
I know what you mean now, and yes that can be done. I seem to remember people making a big deal about running 6.2 heads on a 6.0, which I've done. It came down to valve sizes in the bigger heads and clearance between piston outer lip.
 

DEEZUZ

Escrow shortage crew
Donating Member
Joined
Nov 20, 2008
Messages
44,741
Reaction score
673
Location
NWI
Alright so I'll run with 243s, please if you see any let me know.

What about harmonic balancer? This is a truck block and has a double rigged balancer for dual belts
 

Smokinhot

3-man rules!!!!
Joined
Jul 4, 2007
Messages
13,629
Reaction score
50
Location
Lansing, IL
You could always switch things over to an fbody balancer and accessory bracket. Keep in mind you will also have to do a fbody waterpump if you use an ls1 intake.
 

DEEZUZ

Escrow shortage crew
Donating Member
Joined
Nov 20, 2008
Messages
44,741
Reaction score
673
Location
NWI
You need a new truck water pump?
 

School Boy

Spray the cubic inch at it!
Joined
Mar 28, 2011
Messages
6,272
Reaction score
8
What vehicle is this going in? Goals for the car/truck?
 

DEEZUZ

Escrow shortage crew
Donating Member
Joined
Nov 20, 2008
Messages
44,741
Reaction score
673
Location
NWI
87 IROC. Daily driver, 425+HP NA

6 speed eventually

Turbo after that. But I'm looking at running 2-3 seasons before going this route as I understand I may want to change pistons to run a good setup
 

Great White Drake

You used to call me on my cell phone
Joined
Jun 23, 2010
Messages
4,631
Reaction score
160
That cam is way too big imo. 243 and stock head gaskets should put you at boost friendly 9.1 cr
 

DEEZUZ

Escrow shortage crew
Donating Member
Joined
Nov 20, 2008
Messages
44,741
Reaction score
673
Location
NWI
Sweet, I'd like to set this thing up to be boost ready...

What issue am I going to run in with that cam?
 

DEEZUZ

Escrow shortage crew
Donating Member
Joined
Nov 20, 2008
Messages
44,741
Reaction score
673
Location
NWI
I also just read a CTSV oil pan fits better than a fbody pan.. any truth to this?
 

School Boy

Spray the cubic inch at it!
Joined
Mar 28, 2011
Messages
6,272
Reaction score
8
I would run a f body pan. The cam is a little big but guys run MS3 cams on 5.3s all the time with good results. 243s on your motor with probably get you around 10-10.5-1. You have a aluminium 5.3 which come with flat top pistons.

Also, i would try really hard to bite the bullet and get a 4l60e. I run the PSI Conversions harness. It fit really well and was good quality for $500. Im also running a 99+ f body PCM. I also ran the truck accessories and they fit like a glove in my mustang.
 

DEEZUZ

Escrow shortage crew
Donating Member
Joined
Nov 20, 2008
Messages
44,741
Reaction score
673
Location
NWI
I believe I have a cast block
 

Create an account or login to comment

You must be a member in order to leave a comment

Create account

Create an account on our community. It's easy!

Log in

Already have an account? Log in here.

Top Bottom