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383 Build - Input Wanted

Old Jan 16, 2004 | 11:17 AM
  #1  
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From: Pacific Northwest
Car: '85 IROC
Engine: LB9
Transmission: 700 R4
383 Build - Input Wanted

I'm putting together a stroker... so far the only parts I have are:
Eagle cast crank, GM roller block & lifters.
So, I'm trying to make a decision on what rods are best for this application, and I did some searches.
It seems like some of the popular choices are the Eagle H beam, Scat H beam, and Scat 4340 cap screw I beam.
Originally my plan was to go with the Scat 4340 I beam, the idea being that they're lighter and less expensive and probably strong enough.
But I'm being swayed toward H beam rods, and the reasons for that is mainly because they are apparently available "stroker clearanced".
I don't have any problem with clearancing my own rods. But if I could get a stronger rod and save myself some labor for just $100 higher price tag, it could be worth it.

So these are my questions about "stroker clearanced" rods:
- Is stroker clearancing a special option for any of the above mentioned rods, is it a special part #, or are all the H beam rods clearanced?
- Would a rod that is stroker clearanced out of the box clear ANY cam?
- There are some Eagle featherweight H beams out there, does anyone know anything about how these might be for my app?

One of my reasons for wanting universal out of the box "stroker clearanced" rods, is because I'm thinking it could make it easier to upgrade cams, should I want to do that. Also, easier to balance than a set of rods that have all been altered.
I realize too that there are a number of good American-made cap screw I beam rods out there which are also stroker clearanced, and feedback on those would be appreciated.

The crank I have is rated for 500hp, but I doubt that I'll be making more than 450hp.
I'm hoping my car will run in the low 12s.

Last edited by Streetiron85; Jan 17, 2004 at 11:16 AM.
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Old Jan 16, 2004 | 12:42 PM
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From: Lower Salford, PA
Car: 1987 Camaro Z-28
Engine: 6.3L Victor EFI
Transmission: Tremec TKO 600
Axle/Gears: Moser 9"/4.11 Trac-Lok
I used the Eagle SIR 6" I-beam rods. No clearancing needed.
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Old Jan 16, 2004 | 01:06 PM
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From: Pacific Northwest
Car: '85 IROC
Engine: LB9
Transmission: 700 R4
Originally posted by Ricktpi
I used the Eagle SIR 6" I-beam rods. No clearancing needed.
Some guys say they have to grind and some say they don't... Kinda hard to figure out.
Small BC cam?
Checked out your site... My car's in the infantile stages of that. Gotta have one!

Last edited by Streetiron85; Jan 16, 2004 at 06:54 PM.
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Old Jan 16, 2004 | 06:52 PM
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From: Pacific Northwest
Car: '85 IROC
Engine: LB9
Transmission: 700 R4
All the 383 guys outa town . . . or whut ??
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Old Jan 17, 2004 | 10:55 PM
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From: Austin
Car: 82 Z-28
Engine: 383 TPI
Transmission: 700R4
- Is stroker clearancing a special option for any of the above mentioned rods, is it a special part #, or are all the H beam rods clearanced?
The Eagle 3D H-beam stroker rods are clearanced. Not sure abt other stroker H-beams, but I would think they would be.


- Would a rod that is stroker clearanced out of the box clear ANY cam?
The Eagle H-beams will clear up to .600" lift cams. My LPE 74211 (.530/.560) cleared with plenty of room to spare.



- There are some Eagle featherweight H beams out there, does anyone know anything about how these might be for my app?
Haven't heard anything abt them. I suspect they would be very pricey and not really needed for a street eng.
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Old Jan 18, 2004 | 12:04 AM
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From: Jax, Florida
Car: 1986 Trans Am
Engine: 305 LB9 TPI
Transmission: 700-R4
d00d not to sound like i'm spamming but i just found this awesome place selling 383 for so cheap you wont believe it. Its not a joke either, they are a machining shop in cali.

http://www.larrysperformance.com/data/assemkits.html

383 2 Bolt $995
383 4 Bolt $1100


now tlel me those prices are bad and i'll leave you alone but just check it out. They hare pretty cool. right now they havea full 350 Short Block already remanufactured for $349. cant beat that.
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Old Jan 18, 2004 | 12:26 AM
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Last edited by joshwilson3; Apr 21, 2012 at 10:03 AM.
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Old Jan 18, 2004 | 12:27 AM
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From: Jax, Florida
Car: 1986 Trans Am
Engine: 305 LB9 TPI
Transmission: 700-R4
well let me do a little consumer report lookups for you
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Old Jan 18, 2004 | 12:32 AM
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Last edited by joshwilson3; Apr 21, 2012 at 10:04 AM.
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Old Jan 18, 2004 | 12:36 AM
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From: Jax, Florida
Car: 1986 Trans Am
Engine: 305 LB9 TPI
Transmission: 700-R4
the difference is

As i think you meant assembly kits- thats where they give you the parts and you put it together yourself which saves you money.

Short blocks should be remanufactured

Assembled Engies i think are Rebuilt
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Old Jan 18, 2004 | 12:38 AM
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From: Jax, Florida
Car: 1986 Trans Am
Engine: 305 LB9 TPI
Transmission: 700-R4
Also from what i can see nobody has complained about their products. But nobody has ever put in a review. All i can come up with is that some racers get their engines form them. I dunno though.
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Old Jan 18, 2004 | 12:41 AM
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Last edited by joshwilson3; Apr 21, 2012 at 10:05 AM.
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Old Jan 18, 2004 | 12:43 AM
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From: Jax, Florida
Car: 1986 Trans Am
Engine: 305 LB9 TPI
Transmission: 700-R4
Balancing an engine is like balancing your tires.

If they are not balanced Performance will be severly limited.
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Old Jan 18, 2004 | 12:45 AM
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Last edited by joshwilson3; Apr 21, 2012 at 10:06 AM.
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Old Jan 18, 2004 | 12:45 AM
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From: Pacific Northwest
Car: '85 IROC
Engine: LB9
Transmission: 700 R4
Thanks for the replies guys.
Eagle ESP 3-D .... Okay
Larry's Performance .... Bookmark that .

Have a good weekend
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Old Jan 18, 2004 | 12:48 AM
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From: Jax, Florida
Car: 1986 Trans Am
Engine: 305 LB9 TPI
Transmission: 700-R4
I'm thinking that a remanufactured engine is brought back to original specs meaning that they dont bore it out they keep it the same. They dont bore out anything. When yuo bore out a 350 .030 over its now technically a 355. SO there fore a remanufactured 350 would stay a 350.
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