LT1-LT4 Modifications 1993-97 Gen II Small Block V8

eagle cranks?

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Old Aug 14, 2009 | 11:20 PM
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Default eagle cranks?

i know this subject has been beatin to death in the past ,but mostly in yrs past "i did a search" are the eagle cast cranks all that bad nowadays ? i spun 3 rod bearings and im goin with a prebalanced assembly from eagle .its gonna be a 355 obv eagle crank ,eagle 5.7 rods ,srp forged pistons .im runnin a cc503 with stock heads and its also on the jug for a 100 shot should i be allright?
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Old Aug 15, 2009 | 05:14 AM
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Get it rebalanced, the Eagle balance job should be assumed poor. While your machinist has it he can inspect it for other obvious flaws.

Really I would sooner use a junkyard motor than a dirt cheap rotating assembly, be cheaper and in all likelyhood more reliable.
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Old Aug 15, 2009 | 09:33 AM
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I have a forged eagle crank in my 383.
I intentionally ordered it not balanced ($200 less) then had a trusted machinist take care of it ($125)
had it been far enough out to require mallory, it would have cost $40 or $80 more.



In retrospect, I don't necessarily regret using the Eagle crank, it should handle the power without a problem;
but if I'd known the total cost of the project, I might have gone ahead and spent the money on a more expensive crank
if nothing else but for peace of mind.
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Old Aug 15, 2009 | 10:25 AM
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Personally I would stay away from Eagle. Save up some $$$ towards something more stout.
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Old Aug 15, 2009 | 10:56 AM
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I,ve been running an Eagle crank for 4 years with no issues. Have had it rebalanced twice (rod and piston changes). Still going strong.

Mec
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Old Aug 15, 2009 | 02:00 PM
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I have an eagle balanced RA in my car, no problems here but personally I wouldn't trust spinning it too high, I only rev to 6100~rpm

if you're gonna buy a "kit" you might as well go bigger than 355 IMO, no price difference outside of having to clearance the block which you can do yourself if you wish
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Old Aug 15, 2009 | 02:13 PM
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Why take the chance? You can get a Lunati sledgehammer or Callies dragonslayer for 600-700.
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Old Aug 15, 2009 | 02:58 PM
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Originally Posted by Z28Roxy
Why take the chance? You can get a Lunati sledgehammer or Callies dragonslayer for 600-700.
Where can you get deals like this on a new 1 piece RMS crank? I waited almost a year for a good deal to pop up on a Callies
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Old Aug 15, 2009 | 03:51 PM
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I too would like to know where I can find a Dragonslayer for 700 bucks..
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Old Aug 15, 2009 | 04:16 PM
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I think a Compstar would be about $700 and that would be a good option.

Here are my comments on Eagle followed by an ENGINE BUILDER agreeing with those comments.
https://ls1tech.com/forums/11841220-post14.html
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Old Aug 15, 2009 | 05:13 PM
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Originally Posted by 96capricemgr
i think a compstar would be about $700 and that would be a good option.

Here are my comments on eagle followed by an engine builder agreeing with those comments.
https://ls1tech.com/forums/11841220-post14.html
+1....on the Compstar
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Old Aug 15, 2009 | 05:33 PM
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Originally Posted by JB_97ws6TA
Where can you get deals like this on a new 1 piece RMS crank? I waited almost a year for a good deal to pop up on a Callies
From Lunati's website direct you can get a sledgehammer for 700.

http://www.lunatipower.com/Product.aspx?id=157&gid=160

From Jegs it's $600

http://www.jegs.com/i/Lunati/638/CJ1...0002/-1?CT=999

It's the same part # that Thunderracing has for an LT1 crank. It's 1 piece RMS so afaik it's right. It's $795 at thunder though.
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Old Aug 15, 2009 | 07:28 PM
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thanks for the info guys i talked to my machinist and told him to get the forged crank ,i must have misheard him the first time as he said it was .lolololol the whole rotating assem is costin me $1200 and he is gonna recheck the balancing of the whole setup
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