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Custom Dodge Ram Performance Mods - Engine - 4.7 Liter V8 Discuss modifying your Dodge Ram with Performance Parts and Accessories!
Factory Spec: 4.7-liter V8 engine - 310 horsepower, 330 lb-ft of torque.


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  #1  
Old 12-17-2011, 09:57 AM
CamoBoy34 CamoBoy34 is offline
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Default cam for the 4.7l

i know there is the HO cam for the 4.7l but where do i order one from? i have been looking and a guy at my parts store has been looking for the HO cam or a different cam but cant find any. i know airram.com has them but they are on national backorder and i really dont want to wait that long to get a set of cams. my question is does ANYONE know where to get a cam for the 4.7?


i have a 05quad cab 4x4 4.7
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Old 12-18-2011, 03:19 PM
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Zlow28 Zlow28 is offline
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Try www.moparpartsamerica.com i dont know about the 4.7l engine but isnt it a SOHC?
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Old 12-18-2011, 07:26 PM
CamoBoy34 CamoBoy34 is offline
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ok thank you and yes it has the cams i am looking for. and the 4.7 has dual over head cams
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Old 12-18-2011, 08:01 PM
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also does anyone know anything about the 4.7 upgrade with HO cams? i was thinking about buying a set of 2011 4.7l cams and putting them in my truck i just didnt know if they will work
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Old 12-18-2011, 09:05 PM
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Here is a reference page i came across when researching the same topic.
http://www.dodgeboy.net/durango/47ho/index.htm

I think there is more to it than just cams and an intake though. Pretty sure you need a new or reflashed ECM and a few other goodies.
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Old 12-19-2011, 12:54 AM
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Quote:
Originally Posted by IN2H2O View Post
I think there is more to it than just cams and an intake though. Pretty sure you need a new or reflashed ECM and a few other goodies.
Youre right about needing more stuff. In a pushrod engine (HEMI, or most chevys), you have to take into consideration, rockers, springs, pushrods, lifters, timing chain along with crank & cam sprocket, and a tune. Make sure you get the cam degreed an upgraded oil pump (if needed), and to get the best out of any cam, youll also need gears and a torque convertor (if auto), and a tranny cooler, for the higher stall. And if you wanna go all out, get your heads and intake ported. However all this really depends on the cam, and the engine its going in.
Now all this is just for a pushrod engine. 1 cam. A dual over head cam will have 4 cams therefore more expensive, and will have a different setup. I dont know much on DOHC engines, but they get rid of the pushrods and tend to spin at higher rpms.

To the OP, im guessing youre not going all out with your setup, but i hope youve researched all this previously, and have enough support on your valvetrain to handle the cam(s) of your choice. Again. i dont know much on your engine so this is all i can help with.
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Old 12-19-2011, 08:12 AM
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I believe there are 12 differences in total and I read that somewhere on this forum so just do some more digging. If i get time I will try to find it and post a link as it was a good read.

I'm sure the whole package would net you the best overall gains but i remember it being said that cams and an intake with an aftermarket tune alone would get you most of the way there.
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Old 12-19-2011, 09:08 AM
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The 4.7L's are SOHC, not DOHC. There is one cam per head. Although they are the same basis, same block(I think), and same size, they are pretty much totally different engines 2007 and earlier vs. 2008 and newer. I believe the crank, rods, and pistons are different, I know the heads, cams, and valve train is different. Also the manifolds, TB, ignition, etc. are all different. There is very little that is interchangeable. There are some after maket cam options for the older 4.7L as well, that's the way I'd go personally because the HO cams are slim and none anymore.
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Old 12-19-2011, 08:38 PM
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thanks for all the info guys. and id like to get a different cam then an HO something like a 206 or 208 cam but i cant find them or they are on national back order
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Old 12-19-2011, 08:47 PM
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Quote:
thanks for all the info guys. and id like to get a different cam then an HO something like a 206 or 208 cam but i cant find them or they are on national back order
Those are probably good choices. Being a heavy vehicle you don't want to push the powerband to too high of a rpm, usually people that go with the 212's (I think that's what they are) regret it or switch to a less aggressive choice.
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