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5.7 engine

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Old Nov 1, 2016 | 03:23 PM
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Question 5.7 engine

I would like to replace my 4.7 with a 5.7 in my 2005 Dodge Ram Quad Cab. Would I have to replace the transmission and rear axle so this will work? Also, how hard would it be to get 20 mph out of my 4.7? Thanks.
 
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Old Nov 1, 2016 | 03:42 PM
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So you keeping the 4.7 or what? Next to near hopeless to try and get 20 out of the 4.7.
 
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Old Nov 2, 2016 | 10:13 AM
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Originally Posted by jacmates
I would like to replace my 4.7 with a 5.7 in my 2005 Dodge Ram Quad Cab. Would I have to replace the transmission and rear axle so this will work? Also, how hard would it be to get 20 mph out of my 4.7? Thanks.
Transmission and axle no, they're the same. Computers will be your problem, in addition to adapting an engine designed with fly-by-wire into a vehicle that didn't have it.
 
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Old Nov 3, 2016 | 12:33 PM
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Originally Posted by jkeaton
So you keeping the 4.7 or what? Next to near hopeless to try and get 20 out of the 4.7.
If I get a 5.7, I will not. Thanks for the info.
 
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Old Nov 3, 2016 | 12:34 PM
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Originally Posted by HemiLonestar
Transmission and axle no, they're the same. Computers will be your problem, in addition to adapting an engine designed with fly-by-wire into a vehicle that didn't have it.


Ok. Thanks for the info....
 
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