Re: Mild Magnum 5.2 build
[Re: 71Polara383]
#1769696
03/03/15 02:43 AM
03/03/15 02:43 AM
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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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Your gonna need a torque cam... low on duration.. to build any cyl pressure.. specially with that gear and the weight... I'm sure others will chime in
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Re: Mild Magnum 5.2 build
[Re: 71Polara383]
#1769697
03/03/15 03:12 AM
03/03/15 03:12 AM
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Joined: Jan 2005
Posts: 12,419 Kalispell Mt.
HotRodDave
I Live Here
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I Live Here
Joined: Jan 2005
Posts: 12,419
Kalispell Mt.
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Jeff Patterson (Rapid340) has some cams that would work great in that in stock ready to go and cheap. They will work great with the cheap GM V6 valve spring/retainer trick. Just a litttle bigger than stock and slightly tighter LSA and work awesome.
Don't pull the heads, they ARE cracked but they will most likely never cause a problem. If you pull them put em back with the thin Mr.Gasket head gaskets for a cheap compression bump.
Eddy air gap intake.
Long small tube headers.
It will suprise you, they have more compression than the 5.9 and in stock form hard to tell the difference on a test drive.
I am not causing global warming, I am just trying to hold off a impending Ice Age!
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Re: Mild Magnum 5.2 build
[Re: dogdays]
#1769699
03/03/15 03:38 PM
03/03/15 03:38 PM
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Joined: Jan 2005
Posts: 12,419 Kalispell Mt.
HotRodDave
I Live Here
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I Live Here
Joined: Jan 2005
Posts: 12,419
Kalispell Mt.
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It will easily make 300hp with an intake and headers, no cam swap needed if thats all he wants. The 300 hp crate motors would make 325 with TTI headers a crappy dual plane m1 and lower compression and smaller cam. The 5.2 has more compression, bigger cam than the 5.9 and flat top pistons (better flame front).
I am not causing global warming, I am just trying to hold off a impending Ice Age!
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Re: Mild Magnum 5.2 build
[Re: 71Polara383]
#1769701
03/03/15 05:44 PM
03/03/15 05:44 PM
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Joined: Jun 2008
Posts: 10,847 Oakdale CT
gdonovan
I Live Here
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I Live Here
Joined: Jun 2008
Posts: 10,847
Oakdale CT
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I have a Crane CompuCam roller if you are interested fairly cheap, with 1.7 rockers came out to 460 lift. Was enough to put my porky Duster with 318 manifolds in the low 14's. Too mellow for my taste and was replaced with something a touch rowdier.
Oh and I agree on the heads, don't worry about them. As a tech we never had any leak coolant or cause issues.
"I think its got a hemi"
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Re: Mild Magnum 5.2 build
[Re: gdonovan]
#1769708
03/04/15 05:15 PM
03/04/15 05:15 PM
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Joined: Jan 2005
Posts: 12,419 Kalispell Mt.
HotRodDave
I Live Here
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I Live Here
Joined: Jan 2005
Posts: 12,419
Kalispell Mt.
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run the serpantine magnum set up and a cheap electric pump from auto zone.
I am not causing global warming, I am just trying to hold off a impending Ice Age!
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Re: Mild Magnum 5.2 build
[Re: volaredon]
#1769710
03/04/15 11:09 PM
03/04/15 11:09 PM
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Joined: Oct 2003
Posts: 21,345 Marysville, O-H-I-O
70Cuda383
Too Many Posts
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Too Many Posts
Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
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here is how my mild 318 Magnum did.
M1 2bbl intake manifold, cheap mid-length headers, 220/230 114LSA cam with just over .500 lift, stock TB, stock heads, and an SCT tune on the OBD-II Computer.
4,000lb truck, stick shift on street tires ran mid 14s, with MPH that indicated low 14s/high 13s possible with traction.
**Photobucket sucks**
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