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Custom Dodge Ram Performance Mods - Engine - 5.7 HEMI V8 Discuss modifying your Dodge Ram with Performance Parts and Accessories!
Factory Spec: 5.7-liter HEMI® V8 engine - 390 horsepower, 407 lb-ft of torque.


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  #1  
Old 08-03-2011, 12:02 AM
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Default 6.4 cam in a 5.7

was wondering if anyone has attempted this yet.....the new 4th gen hemi's share the same deck height as far as i can tell.....the 6.4 has some decent cam specs (close to what these crower cams spec at).....im really debating on trying this over the weekend...id just hate to have to put it all back together with the stock cam due to some unforseen clearance issue....according to the numbers ive been able to find i should have enough clearance....the reason for all this is im not to impressed with the results of the regrinds (crower,inertia,arrington,etc) for the price....i can get the 6.4 cam at the parts counter for 60 bucks!!!!!!
not sure about the springs but im pretty sure ill also need the pushrods...either way its all pretty cheap......so whats you guys opinion on all this?
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  #2  
Old 08-03-2011, 12:20 AM
skwurlz skwurlz is offline
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I think the price you were quoted is wrong. Also, I belive you would need to change to the 6.1L valvesprings and pushrods.
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Old 08-03-2011, 12:26 AM
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Quote:
Originally Posted by skwurlz View Post
I think the price you were quoted is wrong.
price is right....looked it up myself......unsure about springs/pushrods....i have a couple sets of 6.1 springs/pushrods......even have a set of pac racing 6.1 springs.....i was under the impression the 6.1 parts were a no go....
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Old 08-03-2011, 03:20 AM
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do you have the specs on the 6.4 cam?
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Old 08-03-2011, 04:27 AM
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Quote:
Originally Posted by chefred112 View Post
do you have the specs on the 6.4 cam?
From another forum, intake opens(btdc) at 36, closes(atdc) at 250, and duration is 286. Exhaust opens(btdc) at 278, closes(atdc) at 10, and duration is 288. Valve overlap is 46. All degrees

6.1 intake opens(btdc) at 15, closes(atdc) at 268, and duration is 283. Exhaust opens(btdc) at 251, closes(atdc) at 35, and duration is 286. Valve overlap is 50. All degrees
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Old 08-03-2011, 10:39 AM
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Quote:
Originally Posted by garner View Post
From another forum, intake opens(btdc) at 36, closes(atdc) at 250, and duration is 286. Exhaust opens(btdc) at 278, closes(atdc) at 10, and duration is 288. Valve overlap is 46. All degrees

6.1 intake opens(btdc) at 15, closes(atdc) at 268, and duration is 283. Exhaust opens(btdc) at 251, closes(atdc) at 35, and duration is 286. Valve overlap is 50. All degrees

and lift:

Valve Lift (@ Zero Lash)
Intake 14.65 mm 0.577 in.
Exhaust 13.65 mm 0.537 in.

this is at the valve.......
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Old 08-03-2011, 12:09 PM
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VCT cam?.....................
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Old 08-03-2011, 12:16 PM
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Quote:
Originally Posted by kay9 View Post
VCT cam?.....................
Yupp, 09+ 5.7 and the 392 both have vct
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Old 08-03-2011, 12:23 PM
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Sweet. Could be the way to go if the price is that low at the dealership.
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Old 08-03-2011, 02:53 PM
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wow so no ones heard of anyone whos attempted this....interesting!

really wish some else could be the pioneer here....lol
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