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408 stroker whos crank is better scat or eagle? #1387754
02/14/13 10:52 PM
02/14/13 10:52 PM
Joined: Jan 2003
Posts: 388
this world
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drifter Offline OP
enthusiast
drifter  Offline OP
enthusiast
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Joined: Jan 2003
Posts: 388
this world
Hello building a low buck pump gas cruzer 408 from a 360 whos crank is better? scat or eagle does one balance easier then the other? Are they both internal balance? i want to use a cast crank and i beam rods with kb pistons i probaly

Re: 408 stroker whos crank is better scat or eagle? [Re: drifter] #1387755
02/14/13 10:56 PM
02/14/13 10:56 PM
Joined: Jan 2003
Posts: 9,826
las vegas
70AARcuda Offline
master
70AARcuda  Offline
master

Joined: Jan 2003
Posts: 9,826
las vegas
Use a scat cast crank...there are pictures and post of broken/cracked eagle cast cranks.


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)
Re: 408 stroker whos crank is better scat or eagle? [Re: 70AARcuda] #1387756
02/14/13 11:01 PM
02/14/13 11:01 PM
Joined: Jan 2003
Posts: 6,266
Renton Washington
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Triple Threat Offline
master
Triple Threat  Offline
master
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Joined: Jan 2003
Posts: 6,266
Renton Washington
Scat


-Dustin
67 Dart, 9 second, 392" G3 Hemi
68 Barracuda 340 F/SA
Re: 408 stroker whos crank is better scat or eagle? [Re: drifter] #1387757
02/14/13 11:20 PM
02/14/13 11:20 PM
Joined: May 2004
Posts: 12,418
Taxes & Virus's R-US, NY
Dragula Offline
I Live Here
Dragula  Offline
I Live Here

Joined: May 2004
Posts: 12,418
Taxes & Virus's R-US, NY
Should just buy my 408 W2 engine...


'70 Cuda,...605 EFI Hemi Street Car (6.20 best pass, 1.33 60ft)
https://www.youtube.com/watch?v=WYw6RA-k5Bk (6.25 at 108.75mph from inside car)
https://www.youtube.com/watch?v=3zQEb9uxFng (6.25 at 108mph from outside car)
https://www.youtube.com/watch?v=JCvfzsC4NgM (9.9)

'66 Barracuda AWB Stretched nose Blown 440 Car in build stage

'71 Duster Drag Car 400 Low Deck 512 best 6.002 at 115.44mph
https://www.youtube.com/watch?v=Znuo3jMUXTk
Re: 408 stroker whos crank is better scat or eagle? [Re: drifter] #1387758
02/14/13 11:26 PM
02/14/13 11:26 PM
Joined: Nov 2004
Posts: 3,544
Syracuse,NY
CompWedgeEngines Offline
master
CompWedgeEngines  Offline
master

Joined: Nov 2004
Posts: 3,544
Syracuse,NY
The Scat for sure. The Eagle steel cranks are absolutley fine,( as far as toughness) but different story on the cast stuff.


RIP Monte Smith

Your work is a reflection of yourself, autograph it with quality.

WD for Diamond Pistons,Sidewinder cylinder heads, Wiseco, K1 rods and cranks,BAM lifters, Morel lifters, Molnar Technologies, Harland Sharp, Pro Gear, Cometic, King Engine Bearings and many others.
Re: 408 stroker whos crank is better scat or eagle? [Re: drifter] #1387759
02/14/13 11:28 PM
02/14/13 11:28 PM
Joined: Oct 2008
Posts: 458
Michigan
BPE Offline
mopar
BPE  Offline
mopar

Joined: Oct 2008
Posts: 458
Michigan
Of the two you listed, the Scat crank and I beam rods are a better choice hands down.

Rod

Re: 408 stroker whos crank is better scat or eagle? [Re: drifter] #1387760
02/15/13 03:13 PM
02/15/13 03:13 PM
Joined: Jan 2003
Posts: 3,719
Space Station #5
471Magnum Offline
master
471Magnum  Offline
master

Joined: Jan 2003
Posts: 3,719
Space Station #5
Scat for sure if you're going cast. Have it checked before buying bearings though. Mine was pretty tight on the mains.


-Jim

I can fix it... my old man is a television repairman.
He's got the ultimate set of tools... I can fix it.

Currently Mopar-less
Re: 408 stroker whos crank is better scat or eagle? [Re: 471Magnum] #1387761
02/15/13 05:08 PM
02/15/13 05:08 PM
Joined: Jul 2009
Posts: 413
Norway (old world)
Oyvind Mopar Offline
mopar
Oyvind Mopar  Offline
mopar

Joined: Jul 2009
Posts: 413
Norway (old world)
Scat. It is heavier but will internally balance with I-beam rods. Heavier H-beam rods might need mallory inserts in crank to internally balance out.
Eagle can be balanced to the heavier H-beams, but it is a total mismatch as these cranks lack material in critical stressed places and will break long before the H-beams give up! The Eagle cast look almost identical to Eagle forged, but the inferior material make them break. If budget/cast: Go Scat and I-beam! My

Re: 408 stroker whos crank is better scat or eagle? [Re: Oyvind Mopar] #1387762
02/15/13 07:43 PM
02/15/13 07:43 PM
Joined: Sep 2007
Posts: 35
Minot, ND
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darndart Offline
member
darndart  Offline
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Joined: Sep 2007
Posts: 35
Minot, ND
I'm running a Scat!


73 Dart Sport 340, 410ci, Indy 360-2 230CNC.
72 Demon 340 4-speed
01 Ram Quad Cab
89 Mustang LX Boss 331,C4,HP76mm turbo, FAST EFI
86 Mustang GT 5.0 AOD
82 Capri RS 306, Fox Lake Stage 1 TW, N41, T5,etc.
Re: 408 stroker whos crank is better scat or eagle? [Re: darndart] #1387763
02/15/13 08:28 PM
02/15/13 08:28 PM
Joined: Jul 2006
Posts: 9,366
Lehigh Acres, Florida
rickstershemi Offline
master
rickstershemi  Offline
master

Joined: Jul 2006
Posts: 9,366
Lehigh Acres, Florida
408/360 scat cast here with scat i-beams and icon flat top pistons....internally balanced crank took a very small amount of Mallory....

Rickster







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