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Re: New 5.7 hemi eagle head
[Re: sixpackgut]
#934420
02/25/11 03:03 PM
02/25/11 03:03 PM
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Joined: Jun 2005
Posts: 2,776
Ontario Canada
MattW
OP
master
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OP
master
Joined: Jun 2005
Posts: 2,776
Ontario Canada
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I wish I could download my pictures. If you pull your logs off and you have a D shape port then you have 09 head. Maybe somebody switched the heads already. Congrats you have two sets of heads. Lol
I am almost positive you have a 2004 block. Matt
Last edited by MattW; 02/25/11 03:07 PM.
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Re: New 5.7 hemi eagle head
[Re: sixpackgut]
#934430
02/26/11 08:48 PM
02/26/11 08:48 PM
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Joined: Jun 2005
Posts: 2,776
Ontario Canada
MattW
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master
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OP
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Joined: Jun 2005
Posts: 2,776
Ontario Canada
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got this on the net." now for the useful stuff.
Cylinder heads. big changes here, new closed chamber heads have smaller chambers (duh) than previous engines , 66.3cc in fact vs 84.9cc. even smaller than the 6.1's with 73.0cc. bolting these on to a previous hemi without modification would result in nearly a 12:1 compression ratio. valves are slightly larger. intake is 2.05" vs 2.00". exhaust is the same. both valves have a longer stem though. new bee hive valve springs, identical on both intake and exhaust are now in use, and seem to mimic what we have been doing in using the 6.1 exhaust springs across all valves. pushrods have changed as well, they are now approximately 4mm longer, putting them very close in length to the 6.1's pushrods.
ports appear to have a 6.1 sized window on the intake side, as well as a 6.1 style D shape on the exhaust. a quick comparisson with a 6.1 exhaust manifold looks like it was nearly a perfect match.
tappets: i wouldnt normally cover this, but i actually made notes in class because of this. they have been revised for higher lift with proper MDS actuation. the stock cams have higher lift, requiring more capacity to collapse in MDS. the new lifters do this constantly in factory form. further more, they are backwards compatible. they will drop right in to an older 5.7 (or any previous hemi built with MDS)
intake manifold: this is a gray area, as there are approximately 4 or 5 different manifolds available for use on the eagle. the trucks use an active intake version where as the cars do not. the active intake allows the ram to have 390 horsepower and 404 ft*lbs of torque by giving it short and long runners in the intake. a very cool design, but nothing groundbreaking, v6's have it as well.
Once again not my info. Matt
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Re: New 5.7 hemi eagle head
[Re: nitroram33]
#934431
02/26/11 08:53 PM
02/26/11 08:53 PM
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Joined: Jun 2005
Posts: 2,776
Ontario Canada
MattW
OP
master
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OP
master
Joined: Jun 2005
Posts: 2,776
Ontario Canada
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Much as I like the Gen 3, don't forget the discontinued
59 degree W9 also flowed 300 out of the box and had potential above and beyond that.
But comparing an aftermarket race head to a dirt cheap OE production head ain't exactly fair 
As far as the block taking it goes, there is a reason MP built the 392 at std bore, and it was not out of laziness. Don't bore it. It will surprise you.
They need to start racing these things in roundy round cars then I think people would start buying. Matt
Penske has done their research on them years ago and asked permission from NASCAR to use it and they said No. gotta love that [/quote
Never mind the big leagues go with grass root get enough demand and .......
So if the new srt 8 is using the 5.7 Me thinks the 6.1 is on the chopping block.
Hey ZIPPY PLEASEEEEEE ask them to turn the 6.1 into a siameses bore block before they they scrap it. Matt
Now I read that the 2011 srt 8 challenger is using the 6.1 block and not the 5.7 as I previously stated.
With a 4.09 bore I don't think the 5.7 block could handle it.
It is also coming with roller rockets. I like to see the part# and pricing on them. Matt
SE - 3.6L Phoenix V6
R/T - 5.7L HEMI
SRT-8 - 6.4L HEMI
I was referring the the 6.1 block. It's good to know that the 6.4 is going to be used in all srt8. That means that the bigger crankshaft will be for sale. Matt
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Re: New 5.7 hemi eagle head
[Re: MattW]
#934432
02/26/11 09:26 PM
02/26/11 09:26 PM
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Joined: Jun 2003
Posts: 9,225
Charleston
sixpackgut
Drag Week Mod Champion
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Drag Week Mod Champion
Joined: Jun 2003
Posts: 9,225
Charleston
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Matt, make note of this, my heads have the same part number but are completely different.
the only difference with the part # is the letters at the end of the part number
Gen 3 power 6.22@110, 9.85@135
Follow @g3hemiswap on instagram
performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
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Re: New 5.7 hemi eagle head
[Re: sixpackgut]
#934433
02/26/11 09:50 PM
02/26/11 09:50 PM
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Joined: Jun 2005
Posts: 2,776
Ontario Canada
MattW
OP
master
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OP
master
Joined: Jun 2005
Posts: 2,776
Ontario Canada
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Quote:
Matt, make note of this, my heads have the same part number but are completely different.
the only difference with the part # is the letters at the end of the part number
Yeah you would think they would change SOME of the numbers.
Is there any info on the year of your block. I would like to know if my info is correct. If not I would like to know how you tell the different years.
Are you planning to run with a carb or EFI?
Matt
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