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  1. #1
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    Eagle 5.7 vs. 6.1 heads

    How good are the eagle heads in comparison to the 6.1 heads? I have found a complete 2011 challenger 5.7 for $650 with a claim of 122k miles on it and a suspected spun main.

    I am thinking of grabbing this up for parts since it appears the block is good on my '06 Magnum. Currently the thought is a 392 stroker kit. Scat offers a kit with a -6cc dish piston that should partly counter the change in chamber size. Then maybe a 6.1 cam, and mds delete.

    If I go with the eagle heads I know I'll need the thicker head gaskets and longer pushrods. Is there anything else to prepare for, and will the eagle intake be ok with everything as well?

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  2. #2
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    I'm surprised nobody's weighed in on this. I dont have much knowledge about this one, but $650 seems like a good price considering you can use the eagle intake too, which supposedly outperforms the pre eagle intake. Of course you'll need a spacer to clear something... I think Hemmisary successfully modified an eagle intake to fit pre eagle block but he seems to have genius level engineering skills.

    I also got a good deal on an eagle 5.7. Going to use heads and I take on my 06 RT.

    Sent from my SM-G950U using Tapatalk
    2006 Dodge Magnum R/T: K&N CAI, SRT headers, Magnaflow 3" cat-back, 180 degree t-stat, Diablo Trinity T1000, 300 SRT rims.

  3. #3
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    Quote Originally Posted by ChoochG View Post
    I'm surprised nobody's weighed in on this. I dont have much knowledge about this one, but $650 seems like a good price considering you can use the eagle intake too, which supposedly outperforms the pre eagle intake. Of course you'll need a spacer to clear something... I think Hemmisary successfully modified an eagle intake to fit pre eagle block but he seems to have genius level engineering skills.

    Sent from my SM-G950U using Tapatalk
    Not the block, the portion of the front timing cover where the temp sensor is.

  4. #4
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    I would probably grab it.
    Curious how bad the crank is.


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  5. #5
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    Sadly it looks like I lost that deal. Naturally on my first available day to pick it up it sells before I can get there. The search continues.

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  6. #6
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    Quote Originally Posted by Sikotic View Post
    Sadly it looks like I lost that deal. Naturally on my first available day to pick it up it sells before I can get there. The search continues.

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    Oh i know how that goes all to well.
    Just do it at a car/swap meet. Found a new pairs of coil overs and a carb for a great price. Figured I would get them on the way out. Wrong, they gone.
    Oh well tho. Another deal well come up. I look it as this, now you know how you really feel about it haha



  7. #7
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    Quote Originally Posted by Magnoom View Post
    Not the block, the portion of the front timing cover where the temp sensor is.
    I know this is an old thread. But it is the block that needs to be cleared. The coolant sensor on the pre Eagle is on the hump at the top of the block. This hump hits the bottom of Eagle and 6.4 intakes on pre Eagles and has to be dealt with.
    2005 Chrysler 300C 5.7 SBE, ported big valved heads, 784ac lifters, SRT 6.1 intake manifold, SRT shorties, custom grind Billy Drakeford cam, SLP LM1, MTCM and GETRAG 3.06 swap.
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  8. #8
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    Quote Originally Posted by 4DoorMuscle View Post
    I know this is an old thread. But it is the block that needs to be cleared. The coolant sensor on the pre Eagle is on the hump at the top of the block. This hump hits the bottom of Eagle and 6.4 intakes on pre Eagles and has to be dealt with.
    You're absolutely right, I think I got flip flopped on eagle vs pre-eagle.
    And the thread isn't that old, this isnt nearly as bad as some of the zombie resurrections lol
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  9. #9
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    10.55 @ 130 , Not bad for NA392 ,4400lbs truck
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  10. #10
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    So with eagle or 6.1 heads you still have to use spacers so the intake will clear......
    06 Black Mag R/T. Rear wiper delete, trunk handle delete, front and rear aluminum belly pans, Strut grills, Spectre drop in , straight pipes exhaust, 85mm Arrington throttle body, diablo sport Intune, Jet 180, billet catch can, st coilovers,spc adjustable upper control arms, BWoody endlinks, Petty's garage sways, speedlogix 4 point rear strut brace, Pettys garage front strut tower brace, long tubes, 2015 eagle intake, SLP Underdrive pulley, Getrag 3.91-axles/hubs, BMR rear suspension

  11. #11
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    Quote Originally Posted by PastorTree View Post
    So with eagle or 6.1 heads you still have to use spacers so the intake will clear......
    Unless you're using a 6.1 intake. It's tall enough to clear. Plastic ones aren't.
    Thanks ric3xrt thanked for this post

  12. #12
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    Quote Originally Posted by PastorTree View Post
    So with eagle or 6.1 heads you still have to use spacers so the intake will clear......
    With eagle or 6.1 heads you can modify a plastic intake (eagle or 392) to fit pre eagle block. It takes some grinding and heat to mold it to fit right (and some cohones to attempt the job).

    There are some good write ups here about it. Hemmisary has a thread that really helped me when I did it.

    2006 Magnum RT, eagle heads, 6.1 cam, 6.4 intake, SRT headers, Magnaflow catback, custom tune by Hemifever, SRT rims
    2006 Dodge Magnum R/T: K&N CAI, SRT headers, Magnaflow 3" cat-back, 180 degree t-stat, Diablo Trinity T1000, 300 SRT rims.
    Thanks ric3xrt thanked for this post

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