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

Opinions on iron block 409 stroker

Thread Tools
 
Search this Thread
 
Old Jun 2, 2002 | 03:49 PM
  #1  
11 Bravo's Avatar
Thread Starter
TECH Junkie
iTrader: (3)
 
Joined: Nov 2001
Posts: 3,078
Likes: 1
From: Republic of Texas
Default Opinions on iron block 409 stroker

I don't hear much about these. If you know anything about them please give me some input. What kind of #'s are they putting out, how are they on the street, and how do they compare to the larger ci stroker engines and how do they compare to a 383? I may be running into some bucks and might go this route if it's worth the $$ ($8999, no core required). And, I assume I would need to run 6.0 truck heads with it? Thanks.
Reply
Old Jun 2, 2002 | 04:54 PM
  #2  
masmith's Avatar
Staging Lane
 
Joined: Nov 2001
Posts: 51
Likes: 0
Default Re: Opinions on iron block 409 stroker

I am building a 422 iron block right now, it is a 4.125" stroke and a 4.030 bore it will be a N2O motor. You can use LS1 heads or LS6 or 6.0 heads but the chambers will need to be opened up for the added bore. I would do a 422 because no matter what stroke you go with its the same price for the crank.

Sean
Reply
Old Jun 2, 2002 | 09:44 PM
  #3  
The Guy in MY 99TA's Avatar
TECH Addict
 
Joined: Jan 2002
Posts: 2,950
Likes: 0
From: Magee MS
Default Re: Opinions on iron block 409 stroker

The iron blocks are better for nitrous and blower applications that plan on a big shot or lots of boost. You would probably save some money going with an iron block(no matter what size you plan on) b/c you will not have to pay for having the block resleeved. You can have the block bored by mostly any machine shop(make sure you find a good one though).

I whave plans to build a iron blocked 409 with the 6.0 heads(w/ a stage 2 or 3 porting) with a nice size cam(something to go good with a blower) and have a big hair drier putting out about 12-15 lbs of boost out. But that is in the future and only time will tell when that happens(hopefully soon!)

Josh S.
Reply
Old Jun 2, 2002 | 10:52 PM
  #4  
XtraCajunSS's Avatar
FormerVendor
iTrader: (2)
 
Joined: Dec 2001
Posts: 1,954
Likes: 4
From: Baton Rouge, LA, USA
Default Re: Opinions on iron block 409 stroker

If you want a nearly bulletproof bottom end, the iron block is the way to go. There will be no worries about dropped sleeves or associated problems with re-sleeved blocks. It is definitely a safe choice to pour your hard earned dollars into. I went that route because I have a relatively limited budget and I am confident in the minimal risks associtated with boring an iron block .030" over. The only drawback to this setup is a 100# weight penalty.

This is just my opinion. You must weigh the risks of resleeved blocks against the weight penalty of an iron block.

I was able to offset the weight of my iron block by using the BMR tubular K and A-arm setup and by a few other weight saving mods. I still have to accept the fact that I will always be about 100 #'s heavier than I could be.

Shane

<small>[ June 02, 2002, 10:54 PM: Message edited by: XtraCajunSS ]</small>
Reply
Old Jun 3, 2002 | 06:52 AM
  #5  
11 Bravo's Avatar
Thread Starter
TECH Junkie
iTrader: (3)
 
Joined: Nov 2001
Posts: 3,078
Likes: 1
From: Republic of Texas
Default Re: Opinions on iron block 409 stroker

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by XtraCajunSS:
<strong>If you want a nearly bulletproof bottom end, the iron block is the way to go. There will be no worries about dropped sleeves or associated problems with re-sleeved blocks. It is definitely a safe choice to pour your hard earned dollars into. I went that route because I have a relatively limited budget and I am confident in the minimal risks associtated with boring an iron block .030" over. The only drawback to this setup is a 100# weight penalty.

This is just my opinion. You must weigh the risks of resleeved blocks against the weight penalty of an iron block.

I was able to offset the weight of my iron block by using the BMR tubular K and A-arm setup and by a few other weight saving mods. I still have to accept the fact that I will always be about 100 #'s heavier than I could be.

Shane</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Yes, I thought about tubular a&k arms as well, ecpecially if I go w/ an iron block. Have you moved your battery to the rear? That would be alot of weight right there. I imagine all that would almost equal everything out.
Reply
Old Jun 3, 2002 | 09:31 PM
  #6  
Pro Stock John's Avatar
LS1Tech Co-Founder
20 Year Member
Community Influencer
iTrader: (34)
 
Joined: Nov 2001
Posts: 45,354
Likes: 1,787
From: Chicago, IL
Default Re: Opinions on iron block 409 stroker

I think iron block strokers have some positives.

Since you are now bolting aluminum heads to an iron block, you have less distortion of the deck surface under extreme conditions. Iron is a better clamping surface too. You can go up to 4.060 bore and avoid expensive sleeving.

But the added weight is NOTICEABLE on the front end.

I have an ARE 422ci IRON setup and after I hit my NA goal I will spray it.

John
11.1 NA at 3700 raceweight last year, goin' for 10.75 FIRST
Reply
Old Jun 4, 2002 | 12:42 AM
  #7  
masmith's Avatar
Staging Lane
 
Joined: Nov 2001
Posts: 51
Likes: 0
Default Re: Opinions on iron block 409 stroker

I have BMR K-member and A-arms, which I might add are very very nice. I am reloacating the Batt. to the rear, just remember to be NHRA legal you have to but a dissconnect on it. I am going to drill a little hole in the rear of the car where the WS6 logo would be and you one of those flaming river remote dissconnects.

Sean
Reply




All times are GMT -5. The time now is 04:03 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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