w/Pete. I prefer the Scat piece.
scat cranks
Thread Starter
Instructor
Joined: Nov 2005
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From: fall river MA
scat cranks
i was told today by a local machine shop that they require alot more work to balance then a eagle crank. is anybody running these cranks and did you have a tough time balancing it. any input would be apperciated.
Thread Starter
Instructor
Joined: Nov 2005
Posts: 210
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From: fall river MA
Originally Posted by Pete K
I noticed the oposite. Eagle cranks are tougher for my crank guy to balance.
Race Director
Joined: Feb 2004
Posts: 12,518
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On a 1 pc seal crank he usually puts 1 slug of mallory in the front. This allows me to run a neutral damper. I run an external balance stock type flexplate. He charges $175 to balance the rotating assembly and $50 for the slug. $225 total.
Large Impressive Member
Joined: Jul 2003
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From: Good health is merely the slowest possible rate at which one can die
St. Jude Donor '04-'05-'06-'07
Originally Posted by Pete K
On a 1 pc seal crank he usually puts 1 slug of mallory in the front. This allows me to run a neutral damper. I run an external balance stock type flexplate. He charges $175 to balance the rotating assembly and $50 for the slug. $225 total.
Burning Brakes
Joined: Dec 2001
Posts: 777
Likes: 1
From: Fort Worth Texas
I just had my 96 LT4 rebuilt, Eagle Crank and 5140 SIR forged I beam rods they claim it is balanced assembly kit when you get it.
SRP Forged pistons .020 over. I had all the rotating parts balanced just to make sure. I will ask when I take it back for a oil change and inspection at 500 miles.
SRP Forged pistons .020 over. I had all the rotating parts balanced just to make sure. I will ask when I take it back for a oil change and inspection at 500 miles.
Last edited by Louis Bartay; Nov 4, 2006 at 10:50 PM.
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Burning Brakes
Joined: Dec 2001
Posts: 777
Likes: 1
From: Fort Worth Texas
Originally Posted by LD85
My builder ranks the Crank in quality like this.
1. Scat
2. Eagle
3. Ohio
1. Scat
2. Eagle
3. Ohio
1 Lunati The Best so he says.
2 Callies 2 and 3 are a even
3 Scat
4 Eagle Great for the street, no slicks and all balanced super tuff.
in the 4340 forged style, from the shop that built my LT4.
I went with the Eagle LT4 assembly kit with SRP forged pistons. All rotating parts balanced together.
Race Director
Joined: Jun 1999
Posts: 14,924
Likes: 9
From: Merritt Ils Fl
Originally Posted by Pete K
On a 1 pc seal crank he usually puts 1 slug of mallory in the front. This allows me to run a neutral damper. I run an external balance stock type flexplate. He charges $175 to balance the rotating assembly and $50 for the slug. $225 total.
Safety Car
Joined: May 2006
Posts: 4,290
Likes: 140
From: Salem NH
Originally Posted by dagrump
i was told today by a local machine shop that they require alot more work to balance then a eagle crank. is anybody running these cranks and did you have a tough time balancing it. any input would be apperciated.
So How "far out" it is I guess depends on who was operating the machine the day they were machining the core into a usable crank. heh.
-- Joe
Instructor
Joined: Mar 2006
Posts: 174
Likes: 1
From: Bettendor Iowa
Originally Posted by Louis Bartay
1 Lunati The Best so he says.
2 Callies 2 and 3 are a even
3 Scat
4 Eagle Great for the street, no slicks and all balanced super tuff.
in the 4340 forged style, from the shop that built my LT4.
I went with the Eagle LT4 assembly kit with SRP forged pistons. All rotating parts balanced together.
2 Callies 2 and 3 are a even
3 Scat
4 Eagle Great for the street, no slicks and all balanced super tuff.
in the 4340 forged style, from the shop that built my LT4.
I went with the Eagle LT4 assembly kit with SRP forged pistons. All rotating parts balanced together.
Burning Brakes
Joined: Dec 2001
Posts: 777
Likes: 1
From: Fort Worth Texas
Originally Posted by Jansenwins
I ran an Eagle forged crank (cost was about $600) for 3 seasons in my asphalt circle track latemodel. 500 HP engine turning 7600 rpm twice a lap, lap after lap. Never had a failure.