Generation IV Internal Engine 2005-2014 LS2 | LS3 | LS7 | L92 | LS9

Building LS2 Stroker - Need Help!!!

Thread Tools
 
Search this Thread
 
Old Nov 8, 2008 | 11:35 AM
  #1  
galluccib's Avatar
Thread Starter
Teching In
 
Joined: Feb 2007
Posts: 9
Likes: 0
Default Building LS2 Stroker - Need Help!!!

Building a 402 - LS2 stroker for my sandrail and need some help finishing the build. I'm not sure what Cam and injectors to use so I was hoping you guys could help out. I'm trying to get 570whp/575wtq - The more wtq the better.

Motor Specs:
- Caliies forged crank and rods
- Compression Ratio: 10.5:1
- CNC 243 Heads - Intake 2.000, Exhaust 1.550
- Fast 90MM w/ GM LS Performance Intake Manifold w/injection

- Cam ?
- What size injectors ?


Which is better ?
- GM LS Performance Intake Manifold (#88958675) or Truck Intake Manifold

Thanks in advanced
Reply
Old Nov 9, 2008 | 09:45 AM
  #2  
99blancoSS's Avatar
Banned
iTrader: (115)
 
Joined: Feb 2005
Posts: 9,892
Likes: 3
From: ST Helens, OR
Default

Is that fwhp?
Reply
Old Nov 9, 2008 | 10:27 AM
  #3  
1.8t's Avatar
TECH Regular
 
Joined: Dec 2004
Posts: 440
Likes: 0
From: Alpharetta, Ga
Default

You aren't going to make those numbers without a power adder if your talking about rwhp.
Reply
Old Nov 9, 2008 | 11:35 AM
  #4  
galluccib's Avatar
Thread Starter
Teching In
 
Joined: Feb 2007
Posts: 9
Likes: 0
Default

I'm hoping for rwhp... What do you mean power adder ?

What do you guys think I'm looking at rwhp then with this setup ?

Thanks,
Reply
Old Nov 9, 2008 | 11:55 AM
  #5  
ndfrsd6's Avatar
10 Second Club
iTrader: (5)
 
Joined: Sep 2005
Posts: 2,141
Likes: 1
From: Homer Glen IL
Default

Originally Posted by galluccib
I'm hoping for rwhp... What do you mean power adder ?

What do you guys think I'm looking at rwhp then with this setup ?

Thanks,
power adder is a turbo or supercharger setup .....in my 402 im putting down 500 to the wheels so i think you'll be in that area.....
Reply
Old Nov 9, 2008 | 11:56 AM
  #6  
Gary98Z's Avatar
TECH Apprentice
iTrader: (9)
 
Joined: Nov 2001
Posts: 375
Likes: 1
From: Kansas City, MO
Default

Originally Posted by galluccib
I'm hoping for rwhp... What do you mean power adder ?

What do you guys think I'm looking at rwhp then with this setup ?

Thanks,
I'm thinking you could end up in the 550rwhp range with an aggressive cam.

Power adder means supercharger, turbocharger, or NOS.
Reply
Old Nov 9, 2008 | 12:00 PM
  #7  
galluccib's Avatar
Thread Starter
Teching In
 
Joined: Feb 2007
Posts: 9
Likes: 0
Default

I wanted to try and stay away from turbo or supercharger because of the budget

What do you think would be the best cam ? Remeber this is for a Sandrail and I need to get every last bit of torque I can out of this 402.

Any thoughts on the intake - LS Performance Intake Manifold (#88958675) or Truck Intake Manifold

Thanks,
Reply
Old Nov 9, 2008 | 01:51 PM
  #8  
1.8t's Avatar
TECH Regular
 
Joined: Dec 2004
Posts: 440
Likes: 0
From: Alpharetta, Ga
Default

I could be wrong but I am thinking you are going to need aftermarket heads and more compression to get close to your target numbers. That and all of the premium add ons anyways...
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

 Brett Foote
story-1

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-2

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-3

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-4

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-5

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-6

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-7

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-8

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-9

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
Old Nov 9, 2008 | 09:19 PM
  #9  
galluccib's Avatar
Thread Starter
Teching In
 
Joined: Feb 2007
Posts: 9
Likes: 0
Default

So you don't think the CNC 243 heads (228 with Intake Runners) will flow ?

Thanks
Reply
Old Nov 9, 2008 | 09:57 PM
  #10  
dkrowner's Avatar
On The Tree
iTrader: (6)
 
Joined: Jan 2008
Posts: 154
Likes: 0
From: alb,nm
Default

for injectors get some 42lb's or 48lb's,on the cam i'd just call up compcams in have them spec u out a cam
Reply




All times are GMT -5. The time now is 12:09 PM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-09 14:55:56


VIEW MORE
story-1
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-2
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-3
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-4
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-5
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-6
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-7
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-8
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-9
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE