LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

What do u think of this (internal parts)

Old Mar 29, 2007 | 07:06 PM
  #1  
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What do u think of this (internal parts)

Eagle forged crankshaft
http://store.summitracing.com/partde...505700&FROM=MG
forged i-beam connecting rods (i know, hbeams are better, but imt ryint to keep the cost down)
http://store.summitracing.com/partde...W&autoview=sku

and then the mahle power-pack -5cc pistons

I am going to do a 379 (4.010 bore, 3.750 crank)
and then LE2 heads with LE3 cam

how does this sound to everyone?
Old Mar 30, 2007 | 12:06 AM
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Well, for about $350 more bucks you can get the Compstar speedpack from Callies and have a 4340 steel crank with excellent heat treat and stress relief and the Compstar H-beam rods (as good as it gets for the money) and the Mahle pistons. And it all comes balanced and ready to assemble. And you get a very good set of rod and main bearings with that kit.

I think think you'll be spending as much if you went with the parts you posted and added the cost of balance and the bearings. With the Compstar kit you'll have superior rods.

Karl
Old Mar 30, 2007 | 12:44 AM
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If you plan on getting a crank anyway I agree with Karl, go ahead and get the kit and it comes balanced. The Eagle SIR I beams are only good to 500hp. I would go with something better.
Old Mar 30, 2007 | 05:59 AM
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I wonder why the idea that "H beam rods are better" became current on this board? They aren't.

rich
Old Mar 30, 2007 | 02:28 PM
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Originally Posted by quickSS
Well, for about $350 more bucks you can get the Compstar speedpack from Callies and have a 4340 steel crank with excellent heat treat and stress relief and the Compstar H-beam rods (as good as it gets for the money) and the Mahle pistons. And it all comes balanced and ready to assemble. And you get a very good set of rod and main bearings with that kit.

I think think you'll be spending as much if you went with the parts you posted and added the cost of balance and the bearings. With the Compstar kit you'll have superior rods.

Karl
and where can i get that package at?

i have also a forged crank listed....
Old Mar 30, 2007 | 06:16 PM
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I know there are a few Callies dealers that are board sponsors.

A. I. is one of them.

Thunder Racing also,

Victory is another.

Here is the authorized dealer list
Callies/Compstar dealers

Karl Ellwein
(also an authorized Callies/Compstar dealer =)
Old Mar 30, 2007 | 07:39 PM
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well, advanced inductions has that setup for about 2100, and i can get
lunati sledgehammer
compustar h-beams
diamond pistons
from VRE for cheaper
my engine builder has told me what i can do, and what he would recommend for my budget, and I want to keep my rotating assembly as close to 1500 or under as possible
Old Mar 30, 2007 | 09:29 PM
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Originally Posted by reamo04
well, advanced inductions has that setup for about 2100, and i can get
lunati sledgehammer
compustar h-beams
diamond pistons
from VRE for cheaper
my engine builder has told me what i can do, and what he would recommend for my budget, and I want to keep my rotating assembly as close to 1500 or under as possible
Did you miss the stuff Karl said about balanced and with bearings??? Do those pistons come with rings like the Mahle's do???
Refigure things and I bet the Compstar kit looks pretty good.
Old Mar 30, 2007 | 09:56 PM
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Originally Posted by 96capricemgr
Did you miss the stuff Karl said about balanced and with bearings??? Do those pistons come with rings like the Mahle's do???
Refigure things and I bet the Compstar kit looks pretty good.
well, my engine builder told me to get the mahle powerpack since it comes with rings and such, so the only thing i would really need is bearings, correct?
Old Mar 30, 2007 | 10:12 PM
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My comment was directed specifically at yours where you were including the Diamond pistons from VRE and comparing it too the Compstar Speedpack(which includes Mahles).
After looking at VRE's site the Diamonds with pins cost near what Mahles do but with rings and pins and Mahle is a favorite with builders for a reason.
Balancing from what I have found will cost at least $160, maybe more, maybe MUCH more.
Old Mar 30, 2007 | 10:22 PM
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Originally Posted by 96capricemgr
My comment was directed specifically at yours where you were including the Diamond pistons from VRE and comparing it too the Compstar Speedpack(which includes Mahles).
After looking at VRE's site the Diamonds with pins cost near what Mahles do but with rings and pins and Mahle is a favorite with builders for a reason.
Balancing from what I have found will cost at least $160, maybe more, maybe MUCH more.

your saying the mahles cost more to balance?
or the diamonds? sorry, your post confused me a little bit
Old Mar 30, 2007 | 10:30 PM
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there is nothing wrong with the parts you are looking at and if that's what your builder want's then it might be best to do it. But every time I try to piece something together like that, and then pay for balance and bearings it always ends up being less of a value than the first glance.
Whatever you do consider strongly staying with the Mahle pistons. In my opinion the Diamond psitons are not an upgrade.
Karl
Old Mar 30, 2007 | 11:47 PM
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yeah, I will probably run the Mahle power pack.
He recommended the eagle forged crank beacuse he said they are cheap and effective. I guess he actually just build a pretty radical SBC witha forged eagle crank and the guy is running low 11's on it, so to me that looks like it will hold up.
He is all for building better stuff on a budget

Also, the connecting rods, i just listed those because thats what my buddy will eb running in his 383 (except i meant to list the Scat I-beam rods, which is also what javier is using on here)
Old Mar 31, 2007 | 03:22 AM
  #14  
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The rods will work fine too I'm sure. For a few more bucks you could upgrade to the SCAT I-beam rods with 7/16" rod bolts. Just an idea. But the rods you show are fine. I mean, if stock GM rods can hold up to 700 or more horse power and 6500rpm then those rods should hold up too.

Karl
Old Mar 31, 2007 | 10:46 AM
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Originally Posted by reamo04
your saying the mahles cost more to balance?
or the diamonds? sorry, your post confused me a little bit
The Compstar kit is balanced the stuff you are looking at will need balancing at additional cost to you. So even if the initial parts cost less piecing stuff together it will add machining costs and likely not be such a value by the time it is all together.
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