Generation III Internal Engine 1997-2006 LS1 | LS6
Sponsored by:
Sponsored by:

new setup need help deciding

Thread Tools
 
Search this Thread
 
Old Feb 10, 2009 | 10:42 AM
  #1  
92 silverado's Avatar
Thread Starter
On The Tree
iTrader: (11)
 
Joined: Aug 2006
Posts: 112
Likes: 0
From: wilmington, nc
Default new setup need help deciding

well my car blew up on saturday which was very unexpected and shouldnt have happened. I figure ill take it as a blessing in disguise and go ahead and put an eagle forged 408 rotating assembly in it if the block is still good (lq9). On the old setup with VERY mildly ported (3-angle valve job and bowl area cleane up a little on the exhaust side) 317's, an ms3 cam, ls6 intake with an 80mm tb, and supporting valtrain and boltons (stock lq9 bottom end) the car made 415/412. i was wondering if it would be possible with a different cam and more port work on the heads i could get into the upper 400's or lower 500's whp? it might be a little much for 317's to handle with the 72cc chamber but i was thinking of doing a l92/l76 head intake on there. let me know your suggestions

Last edited by 92 silverado; Feb 11, 2009 at 10:44 PM. Reason: edited for comprehension
Reply
Old Feb 10, 2009 | 02:22 PM
  #2  
92 silverado's Avatar
Thread Starter
On The Tree
iTrader: (11)
 
Joined: Aug 2006
Posts: 112
Likes: 0
From: wilmington, nc
Default

would i be better off with a l92 setup?
Reply
Old Feb 11, 2009 | 11:24 AM
  #3  
92 silverado's Avatar
Thread Starter
On The Tree
iTrader: (11)
 
Joined: Aug 2006
Posts: 112
Likes: 0
From: wilmington, nc
Default

noone?
Reply
Old Feb 11, 2009 | 07:53 PM
  #4  
XtraCajunSS's Avatar
FormerVendor
iTrader: (2)
 
Joined: Dec 2001
Posts: 1,954
Likes: 4
From: Baton Rouge, LA, USA
Default

Those numbers seem REALLY low. We did a 408 in a customer's M6 car a few years back, it had totally stock 241 castings and made 458RWHP with an LS6 intake and 1 3/4" Hooker headers. How much compression does your car have?

Thanks
Shane
Reply
Old Feb 11, 2009 | 10:42 PM
  #5  
92 silverado's Avatar
Thread Starter
On The Tree
iTrader: (11)
 
Joined: Aug 2006
Posts: 112
Likes: 0
From: wilmington, nc
Default

415/412 was with my stock lq9 bottom end im just trying to see if i could get decent #'s out of my ported 317's
Reply
Old Feb 12, 2009 | 09:59 AM
  #6  
XtraCajunSS's Avatar
FormerVendor
iTrader: (2)
 
Joined: Dec 2001
Posts: 1,954
Likes: 4
From: Baton Rouge, LA, USA
Default

Oh, then yes, you will. I would think you will see 460-480 with the proper cam.

Shane
Reply
Old Feb 12, 2009 | 11:50 AM
  #7  
92 silverado's Avatar
Thread Starter
On The Tree
iTrader: (11)
 
Joined: Aug 2006
Posts: 112
Likes: 0
From: wilmington, nc
Default

what cam would u recommend?
Reply




All times are GMT -5. The time now is 10:56 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