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| kermo |
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I have an ef falcon and sombody suggested i swap an xr6 egine into it. Just wondering what differences there are between the au xr6 and ef xr6, or if it's even worth the money.....
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| Krytox |
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AU6 is better bottom end wise.
It won't fit without cutting the K frame or cut and welding the sump. and being XR doesn't make it 'better' The blocks are the same for XR motors, the heads make the difference.
_________________ Carefree, we may not be number one, but we're up there. Last edited by Krytox on Sun Jul 15, 2007 1:06 pm, edited 1 time in total. |
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| FordFairmont |
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Posts: 6113 Joined: 8th May 2007 |
The stock ef motor can be easily modded to not warrant fitting an XR6 unit
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| ebfairmont3.9 |
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AU motor has a stronger bottom end an basically no NVH...Noise harshness vibration...The AUxr6 head is also very good.
_________________ 1994 ED Fairmont Champaign Gold - AU Series II Intech 4.0L - EL EFI - Thermo Fans - 4.11 LSD - Pacemaker 4480 Into Custom 3" Exhaust - Shift Kit |
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| kermo |
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[The stock ef motor can be easily modded to not warrant fitting an XR6 unit]
thats the real question i guess, my car already has; extractors, exhaust, a pod waiting to be put on and a subtle shift kit and it pulls alright. But my friend keeps trying to convience me to buy a manual xr6 but my money would be better spent on cam and valve work, correct? |
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| Krytox |
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You can get more out a of a stock head than you can on the XR one.
Sure the XR has larger valves, and bee's d**k bigger cam, but it also has smaller/different shaped ports. Putting bigger valves in a stock head and then attacking the ports will benefit you more and cost you less.
_________________ Carefree, we may not be number one, but we're up there. |
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| kermo |
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Thanks Krytox, just one more thing though, im looking to get my hands on an lsd, I know xr6's and 8's have them but i've heard that gia's have decent diffs too, have any idea of the ratio's?
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