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Scat or Eagle for I beam rods
#1642389
07/05/14 09:30 PM
07/05/14 09:30 PM
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Joined: Jun 2003
Posts: 3,325
Truckville, the capital of NY
85_Ram_4speed
OP
master
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OP
master
Joined: Jun 2003
Posts: 3,325
Truckville, the capital of NY
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I generally like the Scat rods over the Eagles for engines I build, generally due to the better tolerances. But this one is a basic 340 rebuild, nothing fancy and will never be raced. Have the eagles improved at all in thier tolerances? They are about $70 less than the Scats and I am sure this gentleman would appreciate that.
Reasons for not wanting to use the stockers are bolts are $70 and to have the rods redone is $200. At $270, I can get the Eagles for the owner, and just be done---plus I really like using Cap bolt style rods.
Outcast Dodge guy.
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Re: Scat or Eagle for I beam rods
[Re: 85_Ram_4speed]
#1642390
07/05/14 09:33 PM
07/05/14 09:33 PM
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Joined: Jan 2003
Posts: 9,826
las vegas
70AARcuda
master
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master
Joined: Jan 2003
Posts: 9,826
las vegas
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The scat is made out of better material...
scat 4340
eagle 5140
but for a stock rebuild ...either one would probably do.
Tony
70 AARCuda Vitamin C
71 Dart Swinger 360 10.318 @ 128.22(10-04-14 Bakersfield)
71 Demon 360 10.666 @122.41 (01-29-17 @ Las Vegas)
71 Duster 408 (10.29 @ 127.86 3/16/19 Las Vegas)
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Re: Scat or Eagle for I beam rods
[Re: Quicktree]
#1642392
07/05/14 09:43 PM
07/05/14 09:43 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Neither, for a few bucks more get an H beam 
Thats my opinion also
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Re: Scat or Eagle for I beam rods
[Re: 85_Ram_4speed]
#1642397
07/05/14 10:15 PM
07/05/14 10:15 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Quote:
I wouldn't use them in a stock build. They suck
Care to elaborate?
I've seen many rip in half... but you can do what you
want
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Re: Scat or Eagle for I beam rods
[Re: MR_P_BODY]
#1642398
07/05/14 10:17 PM
07/05/14 10:17 PM
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Joined: Jan 2003
Posts: 9,826
las vegas
70AARcuda
master
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master
Joined: Jan 2003
Posts: 9,826
las vegas
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you have seen scat 4340 I beam rods rip in half?
Tony
70 AARCuda Vitamin C
71 Dart Swinger 360 10.318 @ 128.22(10-04-14 Bakersfield)
71 Demon 360 10.666 @122.41 (01-29-17 @ Las Vegas)
71 Duster 408 (10.29 @ 127.86 3/16/19 Las Vegas)
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Re: Scat or Eagle for I beam rods
[Re: 85_Ram_4speed]
#1642399
07/05/14 10:24 PM
07/05/14 10:24 PM
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Joined: Aug 2003
Posts: 3,245
Between a rock & a hard place
cudadoug
master
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master
Joined: Aug 2003
Posts: 3,245
Between a rock & a hard place
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My ... My first experience with SCAT I Beams: 250 +/- runs in a 12:1 416, low 10's @ 3100#...6800-7000 at the stripe every run. We lost a couple of rod bearings due to oil detonation, and those rods were "blued" from the heat and out of spec obviously. But the other 6 were within spec that a resize would have made them reusable. I have heard of many failures with Eagle I beams, though never ran them myself. Your dead on about the cost or remanning a set of 40 year old OE rods vs, the SCATs. Better material, cap screws and much lighter than the OE rods. SCAT's are going in a warmed up 340 I'm doing for a guy right now and will be in my street/strip small block for sure.
Last edited by cudadoug; 07/05/14 10:37 PM.
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Re: Scat or Eagle for I beam rods
[Re: 70AARcuda]
#1642401
07/05/14 10:37 PM
07/05/14 10:37 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
you have seen scat 4340 I beam rods rip in half?
They were Scat I beams... thats all I know but they
were in 2 halves.. I know nothing else about what
rpm or anything
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Re: Scat or Eagle for I beam rods
[Re: MR_P_BODY]
#1642402
07/05/14 10:45 PM
07/05/14 10:45 PM
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Joined: Jan 2003
Posts: 9,826
las vegas
70AARcuda
master
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master
Joined: Jan 2003
Posts: 9,826
las vegas
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Got two sets in use, and will use them again..
Tony
70 AARCuda Vitamin C
71 Dart Swinger 360 10.318 @ 128.22(10-04-14 Bakersfield)
71 Demon 360 10.666 @122.41 (01-29-17 @ Las Vegas)
71 Duster 408 (10.29 @ 127.86 3/16/19 Las Vegas)
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Re: Scat or Eagle for I beam rods
[Re: 70AARcuda]
#1642403
07/05/14 11:31 PM
07/05/14 11:31 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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All I use are H-beams.. I bought a few sets of Eagles years ago and thats what are in all my engines.. but I have heard the quality went down a couple years back
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Re: Scat or Eagle for I beam rods
[Re: 70AARcuda]
#1642404
07/06/14 01:10 AM
07/06/14 01:10 AM
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Joined: Apr 2005
Posts: 12,271
Overpriced Housing Central
RobX4406
I Live Here
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I Live Here
Joined: Apr 2005
Posts: 12,271
Overpriced Housing Central
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Quote:
Got two sets in use, and will use them again..
Not a problem using scat I beams here. Especially in a stock rebuild situation. H beams are a wasteful overkill deal.
Eagle SIR's had lots of problems in the past.
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Re: Scat or Eagle for I beam rods
[Re: RobX4406]
#1642405
07/06/14 01:19 AM
07/06/14 01:19 AM
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Joined: Jan 2003
Posts: 11,709
Portage,michigan
B3422W5
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 11,709
Portage,michigan
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The little enginemaster's 318 I am fixing to put in my Duster has Scat I beam 6.20 Chevy rods in it. I will find out here soon if those rods are pretzel's or not. They are part of a real light spinning Assy. So I hope they are fine. Can't imagine a little 318 hurting them..  
69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight
418 BPE factory replacement headed stroker, 565 lift solid cam
Best so far, 10.40 @127 1/4
1.41 best 60 foot
6.60 at 103.90 1/8
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Re: Scat or Eagle for I beam rods
[Re: RobX4406]
#1642406
07/06/14 01:23 AM
07/06/14 01:23 AM
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Joined: Jul 2007
Posts: 1,682
Philadelphia
radar
top fuel
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top fuel
Joined: Jul 2007
Posts: 1,682
Philadelphia
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I have a set of SIR rods that you can have for shipping haha after breaking the Eagle cast crank I'm done with their budget items. I'm planning to hang them up as garage art.. You just have to trade me some good mopar garage art to hang up
The held up to around 400hp 400tq for a bunch of years- strong enough to break my crank! No spun bearings...
Last edited by radar; 07/06/14 01:27 AM.
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Re: Scat or Eagle for I beam rods
[Re: 70AARcuda]
#1642407
07/06/14 08:33 AM
07/06/14 08:33 AM
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Joined: Jan 2003
Posts: 32,394
Quicktree
I Win
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I Win
Joined: Jan 2003
Posts: 32,394
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Quote:
Got two sets in use, and will use them again..
keep using them and good luck, it's about cost and quality for the extra few bucks to go H beam it's a no brainier. How many sets have we seen on here turn out bad? You can see the poor quality by looking at them.
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Re: Scat or Eagle for I beam rods
[Re: B3422W5]
#1642408
07/06/14 08:34 AM
07/06/14 08:34 AM
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Joined: Jan 2003
Posts: 32,394
Quicktree
I Win
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I Win
Joined: Jan 2003
Posts: 32,394
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Quote:
The little enginemaster's 318 I am fixing to put in my Duster has Scat I beam 6.20 Chevy rods in it. I will find out here soon if those rods are pretzel's or not.
They are part of a real light spinning Assy. So I hope they are fine.
Can't imagine a little 318 hurting them..
you are a brave man
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