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My 5.4 Build

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Old 03-27-2014, 09:19 PM
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Originally Posted by 4x4dave
I know I'm a bit preachy on the TF heads, but they have 38CC heads which will tighten up the compression a bit. E85 will be pretty cool though. You almost need some hemi pistons lol.
I wont be 2v. I'm going 4v. So looks like I'l have to have custom pistons made to acheive what I'm looking to do.. Just fantastic.
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Old 03-27-2014, 09:37 PM
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Also [MENTION=92839]MyFX4Project[/MENTION] Your 4v setup will be around 10.3:1
SO no custom work for me I can use straight flat tops with valve reliefs with E85 and Boost.
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Old 03-27-2014, 11:10 PM
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My friend today said he thinks my truck will hang with his 2012 ecoboost when im done. I doubt it but we're definitely gonna find out. Also found someone to tune it when all is said and done. Gotta call machine shop tomorrow for head estimates.
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Old 03-27-2014, 11:13 PM
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I'm running a tune from a local SCT dealer on my 4v.
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Old 03-27-2014, 11:24 PM
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Originally Posted by MyFX4Project
My friend today said he thinks my truck will hang with his 2012 ecoboost when im done. I doubt it but we're definitely gonna find out. Also found someone to tune it when all is said and done. Gotta call machine shop tomorrow for head estimates.

That's a pretty wild guess. Lol
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Old 03-27-2014, 11:33 PM
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My tuned 5.4 4v makes similar power to a stock 11/12 Eco. So it migh be really close if there both on 35's..
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Old 03-29-2014, 12:08 PM
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Just ordered new valves, springs, and valve seals. Just need to find a shop for the head work now.
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Old 03-29-2014, 12:12 PM
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Originally Posted by MyFX4Project
Just ordered new valves, springs, and valve seals. Just need to find a shop for the head work now.

What did you to with. Brand wide?
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Old 03-29-2014, 12:31 PM
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Just went with factory ford 03/04 cobra valves and springs and factory ford valve seals.
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Old 03-29-2014, 12:35 PM
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Originally Posted by MyFX4Project
Just went with factory ford 03/04 cobra valves and springs and factory ford valve seals.
Gotcha. Did they come with bronze guides and stainless valves?
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