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Should i mill my trickflow more?

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Old Dec 12, 2013 | 11:07 AM
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Default Should i mill my trickflow more?

So i have cnc trickflow 225 on my 383. Right now its at 11.6 to 1 with 62cc. Would it be worth it to mill them down to 59cc? My engines already apart and out on a refresh build. Has a big eps cam so that would deff benefit with the compression bump. How much could i go up to while still on 93?
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Old Dec 12, 2013 | 09:12 PM
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What head gaskets are you using?
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Old Dec 13, 2013 | 07:31 AM
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Cometic .040 3.910
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Old Dec 13, 2013 | 10:38 AM
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Your head gasket scares me. Aren't those combustion chambers set up for a 4" bore? Shouldn't you be using a Cometic 4.005 or so?
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Old Dec 13, 2013 | 05:55 PM
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What are the specs on cam or have you already calculated DCR?
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Old Dec 13, 2013 | 06:46 PM
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I would think you need a 4" bore gasket as well.

And what cam do you have now? If your DCR is already over 8.5:1, I wouldn't mess with it.
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Old Dec 14, 2013 | 07:40 AM
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**** i didnt even realize that i needed to change my headgasket when i switched heads. Ran the 3.910 on it and they worked. Didnt even cross my mind till you guys said something. Guess i got lucky. Cam is 240-256 .647/.647 111lsA
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Old Dec 14, 2013 | 11:02 AM
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And it's an EPS custom? I think those particular high-lift lobes are what 290 at .006" and 306? What's the ICL? 108?

I would run the 4.005" at a minimum. Measure the head and see. 4.030 or 4.060 might be warranted.
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Old Dec 14, 2013 | 03:18 PM
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Honestly, now that the head gaskets out of the way, you need to simply call Geoff and ask him. He spec'd the cam, and he knows TFS heads. He'll be able to tell you how much you can go safely
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Old Dec 15, 2013 | 01:51 AM
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I'm 383 as well they told me I needed a 3.910 gasket as well
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