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Original Message

RE:Shape of the combustion chamber?

By Will - 05/05/2001 2:26:15 PM; IP 24.162.190.117

The tunnelport was a wedge too.

IMO, there's:

1. Wedge - inline valves, chamber resembles a wedge - all FE's except for SOHC.

2. Hemi - looks like a dome with plug in the middle (insert VW beetle commercial here), SOHC, Chrysler Hemi, 429 Boss - sorta - some were hemi's, others "crescent" - like a hemi with the edges taken out - Bob Glidden chamber was tiny - barely enough room for valves.

3. 4-valve - like a hemi, but 4 valves and a clover-leaf shaped chamber. - 4.6 dohc, plus most 4 valve/cylinder heads.

4. Canted valve - semi-hemi, valves in different planes, not really a wedge, but not a hemi either. Closer to a wedge than a hemi, though. 351C, 429/460, BBC, 302 Boss

5. Flathead - valves in the block, head does little more than closing up the cylinder and holding the spark plug - the Ford Flathead comes to mind, but what about Briggs & Stratton. (had to throw that one in)

I'm sure there's more, but I'm not sure how to categorize them. Also, keep in mind, this is just a low-tech summary.

This thread, so far...

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Collapse <a href=../ForumFE/reply.aspx?ID=6274&Reply=6274><img src=../images/reply.png width=30 height=10></a> <a href="#" id="anchor6274" onclick="return false;">What is a wedge head?</a> -- <font color=#0000ff>Murray, <i>05/04/2001</i></font><script type="text/javascript">
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What is a wedge head? -- Murray, 05/04/2001

Collapse <a href=../ForumFE/reply.aspx?ID=6276&Reply=6274><img src=../images/reply.png width=30 height=10></a> <a href="#" id="anchor6276" onclick="return false;">RE:Shape of the combustion chamber?</a> -- <font color=#0000ff>RC Moser, <i>05/05/2001</i></font><script type="text/javascript">
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RE:Shape of the combustion chamber? -- RC Moser, 05/05/2001

Collapse <b>RE:Shape of the combustion chamber?</b> -- <font color=#0000ff>Will, <i>05/05/2001</i></font>

RE:Shape of the combustion chamber? -- Will, 05/05/2001

Collapse <a href=../ForumFE/reply.aspx?ID=6281&Reply=6274><img src=../images/reply.png width=30 height=10></a> <a href="#" id="anchor6281" onclick="return false;">RE: Will, I think I thought of another?</a> -- <font color=#0000ff>RC Moser, <i>05/05/2001</i></font><script type="text/javascript">
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RE: Will, I think I thought of another? -- RC Moser, 05/05/2001

Collapse <a href=../ForumFE/reply.aspx?ID=6283&Reply=6274><img src=../images/reply.png width=30 height=10></a> <a href="#" id="anchor6283" onclick="return false;">Hey - that's right</a> -- <font color=#0000ff>Will, <i>05/06/2001</i></font><script type="text/javascript">
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Hey - that's right -- Will, 05/06/2001

RE: Hey - that's right -- richard, 05/07/2001