2V heads

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Feb 5, 2004 | 11:03 AM

74 F100 351m

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From: Okla.

2V heads

If the 2V heads are 78.4 cc , what are they if you take off 0.072?

Feb 5, 2004 | 04:56 PM

bubbaf250

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From: (near) Denver USA

The first few 0.01" you take off the 75-up 2V heads will reduce the chamber volume by approximately 2 cc each.

That approximation is good up to about 0.040". After that, the chamber section starts to change from a cylinder shape to an irregular polygon, and the volume change for each additional 0.01" removed would be different, but I don't know how much.

Feb 5, 2004 | 07:15 PM

Torque1st

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There is a limit to how much you can remove also.

Feb 6, 2004 | 09:18 AM

74 F100 351m

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From: Okla.

If .001'' takes of 2cc's , and you said you can go 0.040 that would be 80cc???? Is that wright??

Feb 6, 2004 | 11:34 AM

Bill_Beyer

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From: PacNW

The first .01" not .001" reduces the volume by 2 cc therefore a rough calculation would be 8 cc per cylinder for .040" so you're talking about +/- 78 cc to +/- 70 cc.

Feb 6, 2004 | 09:53 PM

74 F100 351m

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From: Okla.

Thanks.

Feb 6, 2004 | 10:11 PM

kopfenjager

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From: In the woods of Oregon

Wow; I think, I caught all that!

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Feb 9, 2004 | 01:06 PM

ranchero77

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From: in a house

thats good Bill_B.
this is why everyone should use at least 3 decimal places so .01" looks like 10 thou (.010") smart @$$ I know

still good cc info if anybody faces their heads. I am still somewhat green here to FTE members but I think Bubba just loves this stuff. and I would trust that his approximations are really close to the real answer.