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

408 build

Thread Tools
 
Search this Thread
 
Old Nov 21, 2007 | 01:12 PM
  #1  
bluehawk2's Avatar
Thread Starter
10 Second Club
iTrader: (74)
 
Joined: Oct 2005
Posts: 1,439
Likes: 2
From: Tupelo, MS
Default 408 build

In the next 6 months I am going to have a 408 built. Between now and then I really want to be set on what all i want to go in it. I will probably get Erik Koenig to do the work, so I know the bottom end will be done right.

I am more concerned about the top end combo. I don't know which heads,cam,springs, lifters, Pushrods, or rockers to use with this motor. That is why I need your help. Give me some suggestions on what needs to go into the top end of this motor.

Rockers...Yella Terra?

Pushrods......any hardened PR with the correct length

Lifters..............??? Hydrolic or solid (Street car)

Springs................Patriot extreme??


My Two biggest Concerns

Cam..........I have no Idea what cam would be the best(cam would depend on the heads)

Heads.......I have 243 casting already on my car..........Get them ported or buy new ones??

I don't have the money to go and buy AFR's TF's

L92 with L76 intake or Well ported 243 castings with Fast 90/90??

Valve size?? I have stock valves right now.

Lots of questions,

Any help would be appreciated
Reply
Old Nov 22, 2007 | 04:00 PM
  #2  
bluehawk2's Avatar
Thread Starter
10 Second Club
iTrader: (74)
 
Joined: Oct 2005
Posts: 1,439
Likes: 2
From: Tupelo, MS
Default

any ideas?
Reply
Old Nov 22, 2007 | 05:53 PM
  #3  
sroach20's Avatar
TECH Addict
iTrader: (31)
 
Joined: Dec 2002
Posts: 2,318
Likes: 1
From: houston, Texas
Default

when i do mine it will be:
Rockers...send stockers to harland to be converted.

Pushrods......comp cam.

Lifters..............ls7 hydraulic.

Springs................Patriot extreme??


Cam..........ask patrick

Heads.......L92 with L76 intake
Reply
Old Nov 22, 2007 | 08:58 PM
  #4  
bluehawk2's Avatar
Thread Starter
10 Second Club
iTrader: (74)
 
Joined: Oct 2005
Posts: 1,439
Likes: 2
From: Tupelo, MS
Default

How well does the L76 intake flow? Will it flow good enough for a 408 and some spray?
Reply
Old Nov 22, 2007 | 09:01 PM
  #5  
Cary@Perf-Induction's Avatar
Collections Hold
iTrader: (1)
 
Joined: Jun 2004
Posts: 476
Likes: 0
From: howell mi
Default Heads

Our 5.3 heads have very good results on that combo. Erik has a bit of experience with these heads. The 243's ported by the right shop/person are also a proven budget performer.
Reply
Old Nov 22, 2007 | 09:02 PM
  #6  
beardWS6's Avatar
TECH Addict
iTrader: (1)
 
Joined: Aug 2002
Posts: 2,879
Likes: 0
From: Lake Jackson,TX
Default

ET 245`s ported by Greg Good
Big Cam 250 255 640 640 113

See numbers in sig and I also spray a 200 shot. Plain *** mean!! Erik built my 408! I have ported fast 90!
A4, 12-bolt, nitrous stall 3200!
Reply




All times are GMT -5. The time now is 04:48 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