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Re: 5.9 Magnum Pistons
[Re: Wedgeman]
#823828
10/07/10 10:14 PM
10/07/10 10:14 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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The stock pistons on this motor were .070 in the hole, you could have them mill that much off the deck and use stock pistons and the readily available 1008 fel pro and you will get good quench and compression.
I am not causing global warming, I am just trying to hold off a impending Ice Age!
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Re: 5.9 Magnum Pistons
[Re: dfsmopars]
#823829
10/07/10 10:18 PM
10/07/10 10:18 PM
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Joined: Dec 2009
Posts: 1,074
detroit, mi
POS Dakota
super stock
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super stock
Joined: Dec 2009
Posts: 1,074
detroit, mi
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Quote:
Somebody please tell me I am going to be really glad I built the Magnum instead of building my 318! Tell me that when I get this Magnum in my Charger I am going to be like a woman giving birth that soon all the pain will be erased by the joy!! 
Well, you won't feel violated! That's for sure!
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Re: 5.9 Magnum Pistons
[Re: HotRodDave]
#823831
10/07/10 10:28 PM
10/07/10 10:28 PM
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Joined: Feb 2005
Posts: 5,221
Branson, Mo.
joedust451
super gas
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super gas
Joined: Feb 2005
Posts: 5,221
Branson, Mo.
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Quote:
The stock pistons on this motor were .070 in the hole, you could have them mill that much off the deck and use stock pistons and the readily available 1008 fel pro and you will get good quench and compression.
This is true, & thats not counting the dish (its deaper then the edge of the piston itself). I think acheiving 10.1 out of them with the closed chambered head should be very easy, especially if you deck the block some, don't know how pump gas friendly they would be at that level with iron heads, maybe good  .
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Re: 5.9 Magnum Pistons
[Re: joedust451]
#823832
10/07/10 10:31 PM
10/07/10 10:31 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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10 to one with iron magnums is fine even with pretty mild cams, they are very detonation resistant with good quench.
I am not causing global warming, I am just trying to hold off a impending Ice Age!
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Re: 5.9 Magnum Pistons
[Re: dfsmopars]
#823833
10/07/10 11:15 PM
10/07/10 11:15 PM
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Joined: Nov 2006
Posts: 1,458
oklahoma
forphorty
pro stock
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pro stock
Joined: Nov 2006
Posts: 1,458
oklahoma
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Quote:
Somebody please tell me I am going to be really glad I built the Magnum instead of building my 318! Tell me that when I get this Magnum in my Charger I am going to be like a woman giving birth that soon all the pain will be erased by the joy!!
Your pain will become more acute  when you realize you could have had a 440. sorry,kidding(sort of).
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Re: 5.9 Magnum Pistons
[Re: forphorty]
#823834
10/07/10 11:32 PM
10/07/10 11:32 PM
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Joined: Feb 2005
Posts: 5,221
Branson, Mo.
joedust451
super gas
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super gas
Joined: Feb 2005
Posts: 5,221
Branson, Mo.
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Quote:
Quote:
Somebody please tell me I am going to be really glad I built the Magnum instead of building my 318! Tell me that when I get this Magnum in my Charger I am going to be like a woman giving birth that soon all the pain will be erased by the joy!!
Your pain will become more acute when you realize you could have had a 440. sorry,kidding(sort of).
I race a guy at my track, he has a 440 in a dart with aftermarket lower components, more cam, more gear, & i think more stall, don't know what his problem is, but we run "dead on", he keeps accuseing me of running the nitrous , i told him flat out, you "WILL" know when i run the nitrous  . & the funny thing is, he has another 440 dart that runs 11.0s.
Last edited by joedust451; 10/07/10 11:32 PM.
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Re: 5.9 Magnum Pistons
[Re: forphorty]
#823835
10/07/10 11:48 PM
10/07/10 11:48 PM
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Joined: Aug 2007
Posts: 2,356
Kentucky
dfsmopars
OP
top fuel
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OP
top fuel
Joined: Aug 2007
Posts: 2,356
Kentucky
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Quote:
Quote:
Somebody please tell me I am going to be really glad I built the Magnum instead of building my 318! Tell me that when I get this Magnum in my Charger I am going to be like a woman giving birth that soon all the pain will be erased by the joy!!
Your pain will become more acute when you realize you could have had a 440. sorry,kidding(sort of).
I have a 440! I am kinda partial to some nice handling to go along with some respectable power. I have 318, a 440 and a 360 Magnum and I chose the magnum for several reasons. I may have to sale everything else to finance my decision. 
‘72 Charger, 5.9 Magnum, Tremec 5 spd., Pro-Touring
‘14 Big Horn, Quad Cab, 4x4, 1500
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Re: 5.9 Magnum Pistons
[Re: dfsmopars]
#823836
10/08/10 12:16 AM
10/08/10 12:16 AM
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Joined: Nov 2006
Posts: 1,458
oklahoma
forphorty
pro stock
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pro stock
Joined: Nov 2006
Posts: 1,458
oklahoma
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Quote:
Quote:
Quote:
Somebody please tell me I am going to be really glad I built the Magnum instead of building my 318! Tell me that when I get this Magnum in my Charger I am going to be like a woman giving birth that soon all the pain will be erased by the joy!!
Your pain will become more acute when you realize you could have had a 440. sorry,kidding(sort of).
I have a 440! I am kinda partial to some nice handling to go along with some respectable power. I have 318, a 440 and a 360 Magnum and I chose the magnum for several reasons. I may have to sale everything else to finance my decision.
In spite of my above comment, i've been considering a 5.9 myself. I own two B bodies with big blocks, but a couple years ago i bought a 72 duster with a 318. Been fooling with it on the cheap. I have been doing the stuff that needs to be done regardless of the engine choice . Suspension,brakes frame connectors,etc. I have been following Joedust451s progress and have been pretty impressed. Also been reading everthing i can about the RHS heads. I now have the opportunity to buy an old 380 hp crate engine , incomplete(no lifters,pushrods)and condition unknown. So... in the future i may be a member of the 5.9 brigade myself. 
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Re: 5.9 Magnum Pistons
[Re: forphorty]
#823837
10/08/10 12:39 AM
10/08/10 12:39 AM
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Joined: Feb 2005
Posts: 5,221
Branson, Mo.
joedust451
super gas
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super gas
Joined: Feb 2005
Posts: 5,221
Branson, Mo.
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Quote:
Quote:
Quote:
Quote:
Somebody please tell me I am going to be really glad I built the Magnum instead of building my 318! Tell me that when I get this Magnum in my Charger I am going to be like a woman giving birth that soon all the pain will be erased by the joy!!
Your pain will become more acute when you realize you could have had a 440. sorry,kidding(sort of).
I have a 440! I am kinda partial to some nice handling to go along with some respectable power. I have 318, a 440 and a 360 Magnum and I chose the magnum for several reasons. I may have to sale everything else to finance my decision.
In spite of my above comment, i've been considering a 5.9 myself. I own two B bodies with big blocks, but a couple years ago i bought a 72 duster with a 318. Been fooling with it on the cheap. I have been doing the stuff that needs to be done regardless of the engine choice . Suspension,brakes frame connectors,etc. I have been following Joedust451s progress and have been pretty impressed. Also been reading everthing i can about the RHS heads. I now have the opportunity to buy an old 380 hp crate engine , incomplete(no lifters,pushrods)and condition unknown. So... in the future i may be a member of the 5.9 brigade myself.
Thanks for the props forforty, I will say this, i'm a BB A body builder by heart, i can pretty much make/build a 440 dart/duster with little of nothing & it'll run the #s, but i'm sooooo impressed with this 360 "magnum" that i'm stoked, for a very very mild stock/used shortblock to run like this is amazing, & its damn near in the 7.9s in the 1/8 shifting at 5100, what that tells me is its a torque monster  .
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Re: 5.9 Magnum Pistons
[Re: forphorty]
#823839
10/08/10 06:50 AM
10/08/10 06:50 AM
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Joined: Dec 2009
Posts: 1,074
detroit, mi
POS Dakota
super stock
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super stock
Joined: Dec 2009
Posts: 1,074
detroit, mi
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Quote:
My goal for the duster is to have a mild comfortable driver that gets driven on the highway a lot. Will probably end up with 3.23s once i get a 8.75 built for it. Ac and stereo are in the plans also. A build similar to yours would work well . I can get the crate motor pretty cheap. Will probably get it and tear it down to see what is useable. The cam is a little hotter than i want and i would probably trade off the single plane. Since it has no lifters, are the factory replacements expensive? I think the spider is still there. Wondering if i might be better off just getting a good complete truck motor as you did, instead of the incomplete crate motor.
The factory replacement rollers are good stuff and only about 140 bucks for an entire set.
nothing wrong with them at all. They will be perfect for you.
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Re: 5.9 Magnum Pistons
[Re: forphorty]
#823840
10/08/10 09:12 AM
10/08/10 09:12 AM
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Joined: Feb 2005
Posts: 5,221
Branson, Mo.
joedust451
super gas
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super gas
Joined: Feb 2005
Posts: 5,221
Branson, Mo.
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Quote:
My goal for the duster is to have a mild comfortable driver that gets driven on the highway a lot. Will probably end up with 3.23s once i get a 8.75 built for it. Ac and stereo are in the plans also. A build similar to yours would work well . I can get the crate motor pretty cheap. Will probably get it and tear it down to see what is useable. The cam is a little hotter than i want and i would probably trade off the single plane. Since it has no lifters, are the factory replacements expensive? I think the spider is still there. Wondering if i might be better off just getting a good complete truck motor as you did, instead of the incomplete crate motor.
Like bignozzle said, the lifters aren't exspensive, & you can run chevy style roller rockers so you can save there too, If you can find a good used Magnum from a truck with fairly low miles & don't spend more then 4-500.00 then grab it, the only weak area with them is in the magnum heads, they tend to crack in-between the valves in the chambers, the end chambers are the worsed, what all comes with this crate motor your looking at & what do they want for it?
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Re: 5.9 Magnum Pistons
[Re: HotRodDave]
#823842
10/08/10 09:57 AM
10/08/10 09:57 AM
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Joined: Feb 2009
Posts: 892
Illinois
StrkrDart69
super stock
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super stock
Joined: Feb 2009
Posts: 892
Illinois
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Quote:
10 to one with iron magnums is fine even with pretty mild cams, they are very detonation resistant with good quench.
 I have 10.5 compression with .544 int lift .568 ex and no detonation on pump gas.
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Re: 5.9 Magnum Pistons
[Re: Duner]
#823844
10/08/10 11:50 AM
10/08/10 11:50 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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I have to agree on the single plane, the eddy air gap is a little better but I have the M1 single plane on mine and even with a comp XE268 cam stock converter and 2.76 gears it lacks nothing in the TQ department. If you stomp the gas right off idle it twists the body pretty good, feels like the tire is gonna come off the ground (it don't but it feels that way).
Stock magnum heads crack on 9 out of 10 heads but I have never ever seen it cause any problems. They just don't go into the water ports. I have even seen cracks on brand new castings.
I am not causing global warming, I am just trying to hold off a impending Ice Age!
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Re: 5.9 Magnum Pistons
[Re: forphorty]
#823846
10/08/10 06:15 PM
10/08/10 06:15 PM
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Joined: Jan 2003
Posts: 16,123
Grand Haven, MI
patrick
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 16,123
Grand Haven, MI
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another option, look at diamond pistons PN 51420, they're stock 9cc dish 360 pistons, with a 1.667CH (.008" lower than the KB's)
1976 Spinnaker White Plymouth Duster, /6 A833OD
1986 Silver/Twilight Blue Chrysler 5th Ave HotRod **SOLD!***
2011 Toxic Orange Dodge Charger R/T
2017 Grand Cherokee Overland
2014 Jeep Cherokee Latitude (holy crap, my daughter is driving)
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