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383 stroker and L98 heads...

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Old Jan 4, 2005 | 12:34 AM
  #1  
V8Astro Captain's Avatar
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From: 600 yds out
Car: Bee-Bowdy
Engine: blowd tree-fity
Transmission: sebin hunnerd
Axle/Gears: fo-tins
383 stroker and L98 heads...

I'm thinking about building a 383 out of this 350 I have sitting around. I also have some cast iron L98 heads that I'm bowl blending and having rebuilt.

Will the 383 live happily under the L98 heads? I'm planning on using Comp Cams XR264HR (212/218 .488"/.495" 112°LSA).

I want lots of power under 5500 rpm and I figure the stroker is the way to go. This will be thru a 2" bore TBI.

suggestions? comments?

thanks
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Old Jan 4, 2005 | 12:56 AM
  #2  
five7kid's Avatar
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Comments? Sounds like a great plan to me.

Suggestions? Check out the TBI forum (if you haven't already) to get the most out of the combo.
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Old Jan 4, 2005 | 01:50 AM
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V8Astro Captain's Avatar
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From: 600 yds out
Car: Bee-Bowdy
Engine: blowd tree-fity
Transmission: sebin hunnerd
Axle/Gears: fo-tins


I've been posting here for a few years but haven't been around (sold my projects) in the last year. I got a new PROMinator coming my way. There's been some neat stuff going on in the DIY PROM forum while I was gone.

Back on topic...I'm torn between building the 383 stroker with the L98 heads, or building the 350 up with some kind of fancy heads like aluminum Canfields or Dart Pro 1.

I want all the ruthless torque I can get under 5500 rpm.

What does everyone think of the Dart Iron Eagle Platinum heads? Looks like pretty good flow data from what I've found.

Last edited by V8Astro Captain; Jan 4, 2005 at 02:18 AM.
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Old Jan 4, 2005 | 10:53 AM
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Originally posted by V8Astro Captain


I've been posting here for a few years but haven't been around (sold my projects) in the last year. I got a new PROMinator coming my way. There's been some neat stuff going on in the DIY PROM forum while I was gone.

Back on topic...I'm torn between building the 383 stroker with the L98 heads, or building the 350 up with some kind of fancy heads like aluminum Canfields or Dart Pro 1.

I want all the ruthless torque I can get under 5500 rpm.

What does everyone think of the Dart Iron Eagle Platinum heads? Looks like pretty good flow data from what I've found.
I just got done shopping around for aluminum heads. I was almost set on the Dart Pro1s myself, until I saw the flow charts of the trickflows side by side with them. Trick flow makes a much better head than the Pro1. I researched a lot on the net on the various message boards, and the general consensus among the people THAT ACTUALLY OWN the dart heads, is dissapointment.
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Old Feb 8, 2005 | 05:02 PM
  #5  
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From: waco, tx
Car: 91Z28 L98
Engine: HSR 350
Transmission: Goebel 700R4
Those new Iron Eagle Platinum heads do look promising, but I haven't seen any 3rd person flow numbers or anyone that has them yet.
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Old Feb 9, 2005 | 07:51 AM
  #6  
ZZ28ZZ's Avatar
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Joined: Apr 2002
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From: Austin
Car: 82 Z-28
Engine: 383 TPI
Transmission: 700R4
I'm running iron L98 heads on my 383. I had the 2.02 and 1.6" valves installed, bowls blended, and a few other mods to accomadate the 74211 LPE cam. Cost me $500 for all the head work and parts (valves, retainers,etc).
My eng runs out of air at abt 4800 RPM, but that's probably the TPI's fault. From 2500 to 4500 the eng pulls really hard. During highway roll-ons (65+ MPH) , it consistantly walks away from LT1s. :-)
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Old Feb 9, 2005 | 03:59 PM
  #7  
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From: waco, tx
Car: 91Z28 L98
Engine: HSR 350
Transmission: Goebel 700R4
it consistantly walks away from LT1s. :-)
Can't complain about that!

Hey, I didn't know Lingenfelter died. Gotta love a guy that did so much for the TPI.
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