LT1-LT4 Modifications 1993-97 Gen II Small Block V8
View Poll Results: compstar vs scat or other
Callies compstar
87.88%
Scat
3.03%
other
9.09%
Voters: 33. You may not vote on this poll

compstar vs scat

Thread Tools
 
Search this Thread
 
Old Apr 29, 2010 | 01:09 AM
  #1  
BLK,97,T/A,M-6's Avatar
Thread Starter
TECH Regular
 
Joined: May 2007
Posts: 433
Likes: 0
Default compstar vs scat

Which do you prefer? on your build, did either of these require excess balancing?

I can get either fully forged 4340 383 kit:

Callies compstar $2030
or
Scat $1850


Vote and offer your opinions please.
Reply
Old Apr 29, 2010 | 01:10 AM
  #2  
gregrob's Avatar
TECH Senior Member
iTrader: (8)
 
Joined: Sep 2008
Posts: 5,130
Likes: 4
From: 6,000+ feet
Default

I would prefer compstar heavily.

JMO
Reply
Old Apr 29, 2010 | 01:18 AM
  #3  
suicidal racing's Avatar
TECH Fanatic
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (14)
 
Joined: Sep 2007
Posts: 1,074
Likes: 8
From: Mass
Default

callies all the way..ive never had there compstar but ive had there magnums and magnums xl and the work is next to none unless you want to get up there an pay 3k for just a crank

i havent heard much about anyone having to have work done to there callies stuff..scat aint as bad as eagle because they do all there finsh work here but i would def take callies over scat any day..
Reply
Old Apr 29, 2010 | 01:25 AM
  #4  
daves94formula's Avatar
On The Tree
iTrader: (3)
 
Joined: Sep 2007
Posts: 177
Likes: 0
From: Ames, IA
Default

i would say it depends on your end result. if your going to put stupid power to it then go with callies. if your building a mid power street machine might as well save a little bit of cash and go with scat. but since its only a $200 difference you might as well get callies
Reply
Old Apr 29, 2010 | 02:06 PM
  #5  
Corey @ Clayton Racing's Avatar
FormerVendor
 
Joined: Apr 2006
Posts: 154
Likes: 0
From: Bartlett
Default

We use and sell both the compstar and scat. The compstar has a nicer finish and more attention to details on the rods. The compstar comes with arp2000 bolts in the rods standard or you can upgrade the scat to that bolt for around $100. The other biggest differance is that the Scat crank is internal front external rear, and the compstar is internal on both ends. Both setups are very strong.
Reply
Old Apr 29, 2010 | 02:48 PM
  #6  
big_bird_93's Avatar
Launching!
iTrader: (1)
 
Joined: Mar 2009
Posts: 200
Likes: 0
Default

I dont have any experience to share but i have heard more good things about compstar than scat.
Reply
Old Apr 29, 2010 | 04:34 PM
  #7  
Z28Roxy's Avatar
TECH Fanatic
15 Year Member
iTrader: (4)
 
Joined: Mar 2007
Posts: 1,011
Likes: 27
From: Waukesha, WI
Default

I'd get "made in USA" callies, not compstar. Though I'm sure it's a good piece. I'd get it before getting scat.

Callies or Lunati. IMHO.
Reply
Old Apr 29, 2010 | 04:54 PM
  #8  
97LT1's Avatar
TECH Fanatic
20 Year Member
iTrader: (3)
 
Joined: Sep 2004
Posts: 1,417
Likes: 0
From: Clear lake TX (From LaPorte)
Default

Compstar is forged overseas and machined here in USA. Thats the difference.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

 Brett Foote
story-1

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-2

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-3

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-4

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-5

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-6

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-7

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-8

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-9

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
Old Apr 29, 2010 | 05:40 PM
  #9  
suicidal racing's Avatar
TECH Fanatic
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (14)
 
Joined: Sep 2007
Posts: 1,074
Likes: 8
From: Mass
Default

^scat is also but eagle is all over seas and thats why you hear people machining there brand new cranks and such with them..scat has to be everyonce in awhile also..
Reply
Old Apr 29, 2010 | 06:34 PM
  #10  
Puck's Avatar
TECH Veteran
iTrader: (17)
 
Joined: Oct 2006
Posts: 4,152
Likes: 6
Default

Both eagle and scat are overseas castings. ALL cranks should be inspected by a machinist and balanced before being used....there is no such thing are a "pre balanced" crank since every complete rotating assembly is different.

FWIW Eagle is rated to more HP then Scat. Both are good to well over 1,000 hp though and will be fine in 99% of LT1 builds when properly installed. Either or is a preference.

Both cast cranks are garbage, and should be avoided like the plague. IIRC Eagle SBC cast is only 500fwhp, Scat 450. That is right around where most properly made H/C stroker builds end up.

I voted Compstar.
Reply
Old Apr 29, 2010 | 08:04 PM
  #11  
slomarao's Avatar
TECH Fanatic
iTrader: (6)
 
Joined: Dec 2007
Posts: 1,147
Likes: 0
From: chicago,IL
Default

Scat and Eagle should be used as paper weights. They are pretty much the only 2 companies I have really heard with failing parts. I know people build motors on a budget and they tend to be the cheaper route but sometimes you ll pay later on.

Now there are plenty of people who have good luck with their stuff but I would spend a few more bucks and sleep a little better a night.



just my 02 tho...
Reply
Old Apr 29, 2010 | 09:39 PM
  #12  
Puck's Avatar
TECH Veteran
iTrader: (17)
 
Joined: Oct 2006
Posts: 4,152
Likes: 6
Default

Originally Posted by slomarao
Scat and Eagle should be used as paper weights. They are pretty much the only 2 companies I have really heard with failing parts. I know people build motors on a budget and they tend to be the cheaper route but sometimes you ll pay later on.

Now there are plenty of people who have good luck with their stuff but I would spend a few more bucks and sleep a little better a night.



just my 02 tho...
For cast cranks I would agree with you, but a blanket statement about the whole brand is not really fair. LT1s are blessed with very strong factory cranks. This makes aftermarket cast cranks a downgrade in most cases. I would not use a cast crank from any manufacturer in anything more then a mild rebuild daily driver.

Forged scat or eagle cranks on the other hand are more then strong enough for any LT build on this site except for maybe a small handful of people...and those are the same ones who end up with core shift and block problems from the amount of power they are making.
Reply
Old Apr 30, 2010 | 01:33 AM
  #13  
96LT1355Z28's Avatar
10 Second Club
15 Year Member
Photogenic
Photoriffic
Liked
iTrader: (2)
 
Joined: Nov 2007
Posts: 841
Likes: 9
From: Holden, MO (KC)
Default

I made this same decision a few months ago. I went with Callies crank and Compstar rods. I've never used Scat stuff and was seriously considering them but after seeing the product from Callies I'm conifident I made a good decision. I voted Compstar.
Reply
Old Apr 30, 2010 | 08:05 AM
  #14  
BadA95Z28's Avatar
Teching In
 
Joined: Apr 2010
Posts: 28
Likes: 0
Default

where have those that are running callies and callies compstar products found to be the best place to buy their parts or rotating kits?
Reply
Old Apr 30, 2010 | 09:21 AM
  #15  
Corey @ Clayton Racing's Avatar
FormerVendor
 
Joined: Apr 2006
Posts: 154
Likes: 0
From: Bartlett
Default

I know a good one.
Reply
Old Apr 30, 2010 | 09:40 AM
  #16  
355z28's Avatar
10 Second Club
15 Year Member
iTrader: (8)
 
Joined: Oct 2007
Posts: 1,251
Likes: 4
From: Iowa
Default

I got my setup from Corey. I havent finished the car yet. But Im Confident he does good work. I went compstar for my build. I figured if I was that deep in it then why not spend the couple hundred.

Last edited by 355z28; Apr 30, 2010 at 10:27 AM.
Reply
Old Apr 30, 2010 | 10:13 AM
  #17  
SS MPSTR's Avatar
11 Second Club
iTrader: (1)
 
Joined: Jun 2003
Posts: 1,510
Likes: 1
From: SoCal
Default

As stated, nothing wrong with the Scat forged products. Perfect for 99.9% of the builds you see here.
Reply




All times are GMT -5. The time now is 04:01 PM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-04 05:00:17


VIEW MORE
story-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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