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

LS2 Combo

Thread Tools
 
Search this Thread
 
Old Jun 2, 2005 | 02:22 PM
  #1  
dug's Avatar
dug
Thread Starter
Banned
iTrader: (10)
 
Joined: Aug 2002
Posts: 3,721
Likes: 0
From: Phoenix
Default LS2 Combo

I feel like bench racing. How about this set up. LS2 motor with AFR heads MS3 cam and edelbrock stepped headers. 475rwhp possible?
Reply
Old Jun 2, 2005 | 03:17 PM
  #2  
Beast96Z's Avatar
TECH Veteran
iTrader: (21)
 
Joined: Apr 2003
Posts: 4,049
Likes: 3
From: Shreveport, LA
Default

Either AFR head (205 or 225) should be able to achieve that number easily. You'll just need a bit of compression to help out. In order to get the compression, you'll have to mill and run thinner gaskets, which will prolly give you P/V problems with that big of a cam.
Reply
Old Jun 2, 2005 | 03:52 PM
  #3  
Patrick G's Avatar
LS1 Tech Administrator
20 Year Member
Photogenic
iTrader: (14)
 
Joined: Nov 2001
Posts: 8,246
Likes: 34
From: Victoria, TX
Default

I think you'll definitely need to replace the LS2 intake with a FAST to get there.
__________________

2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.

Reply
Old Jun 2, 2005 | 04:07 PM
  #4  
dug's Avatar
dug
Thread Starter
Banned
iTrader: (10)
 
Joined: Aug 2002
Posts: 3,721
Likes: 0
From: Phoenix
Default

Yeah, I forgot about the FAST intake. The 90mm tb would help.

I figure 11.5 to 1 compression should be enough. Notched pistons should provide enough clearance.

I like the idea of running the 225 heads on a 4" bore. A 4" stroke would be nice but might not be worth the money.
Reply
Old Jun 2, 2005 | 05:33 PM
  #5  
Beast96Z's Avatar
TECH Veteran
iTrader: (21)
 
Joined: Apr 2003
Posts: 4,049
Likes: 3
From: Shreveport, LA
Default

With eagle cranks as affordable as they are, there isn't much reason not to stroke it. That is if the bottom end is being put together. If it is just a LS2 short block then you'll be looking at a good bit for assembally + the cost of the stroker kit. With SDPC selling the 402 short blocks for $3995, I'd go that route.
Reply
Old Jun 2, 2005 | 10:26 PM
  #6  
barkingspud's Avatar
10 Second Club
iTrader: (3)
 
Joined: May 2005
Posts: 318
Likes: 0
From: Chi-Town Western Burbs
Default

Originally Posted by Beast96Z
With eagle cranks as affordable as they are, there isn't much reason not to stroke it. That is if the bottom end is being put together. If it is just a LS2 short block then you'll be looking at a good bit for assembally + the cost of the stroker kit. With SDPC selling the 402 short blocks for $3995, I'd go that route.
So, you think the 402 stroker will put down near 500 rwhp? What kind of cam do you think is best for this type of setup? I know, I know, loaded question but, I am considering this route so, I'm asking!!
Reply
Old Jun 6, 2005 | 02:51 PM
  #7  
ZLEEPER's Avatar
TECH Apprentice
20 Year Member
iTrader: (24)
 
Joined: Nov 2002
Posts: 350
Likes: 0
From: spring, TX
Default

Originally Posted by barkingspud
So, you think the 402 stroker will put down near 500 rwhp? What kind of cam do you think is best for this type of setup? I know, I know, loaded question but, I am considering this route so, I'm asking!!
I'm running a 244/244 .612/.612 112. Haven't been able to run a full dyno session. Had clutch issues with the slave leaking on the disk causing major slippage. The graph went to sh%# at around 403 rwhp, but we were just getting up into the powerband of the cam.
Reply
Old Jun 6, 2005 | 03:18 PM
  #8  
dug's Avatar
dug
Thread Starter
Banned
iTrader: (10)
 
Joined: Aug 2002
Posts: 3,721
Likes: 0
From: Phoenix
Default

With the right cam Id expect a 402 to make 550rwhp. As far as Eagle cranks go theyre made in China so I would never buy them.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

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

 Verdad Gallardo
story-1

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

 Pouria Savadkouei
story-2

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

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Jun 6, 2005 | 05:03 PM
  #9  
soontobestrokedss's Avatar
Teching In
 
Joined: Jun 2005
Posts: 16
Likes: 0
From: Louisiana
Default

Originally Posted by ZLEEPER
I'm running a 244/244 .612/.612 112. Haven't been able to run a full dyno session. Had clutch issues with the slave leaking on the disk causing major slippage. The graph went to sh%# at around 403 rwhp, but we were just getting up into the powerband of the cam.
is this your DD? If so, how do you like that cam?
Reply
Old Jun 6, 2005 | 05:33 PM
  #10  
ZLEEPER's Avatar
TECH Apprentice
20 Year Member
iTrader: (24)
 
Joined: Nov 2002
Posts: 350
Likes: 0
From: spring, TX
Default

yes it is my DD. It idles fine at 900 rpm even with the ac on. It also drives fine in traffic. The only thing that scares me is the lift taking a toll on the valve springs.
Reply




All times are GMT -5. The time now is 04:07 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE