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Original Message

Bore it to 428? Chances are not good.

By Dave Shoe - 06/28/2003 7:17:02 PM; IP 216.243.176.34

Most MCC blocks have reinforced cranksaddle webbing, some have external ribbing on the skirt, but only a minority have thicker cylinder walls. It's been published that 105 blocks all have thicker cylinders, but we've learned a bunch more since that hit the bookshalves 20 years ago.

The "drill bit test" will put you onto the right track.

Note that thin cylinder walls in any engine block mean you will be throwing away horsepower as well as creating a fragile block. Rigid cylinders make horsepower by improving cylinder seal and good cylinder seal also prevents piston skirt overheating.

reference this old post:

http://jcoconsulting.com/forumfe/reply.aspx?ID=16629&Reply=16617

Shoe.

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Collapse <a href=../ForumFE/reply.aspx?ID=17560&Reply=17560><img src=../images/reply.png width=30 height=10></a> <a href="#" id="anchor17560" onclick="return false;">Wuzza Hi-Per block?</a> -- <font color=#0000ff>cuzncletus, <i>06/21/2003</i></font><script type="text/javascript">
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Wuzza Hi-Per block? -- cuzncletus, 06/21/2003

Collapse <a href=../ForumFE/reply.aspx?ID=17564&Reply=17560><img src=../images/reply.png width=30 height=10></a> <a href="#" id="anchor17564" onclick="return false;">Hmmm...I've never seen nor heard of such a thing. [n/m]</a> -- <font color=#0000ff>Mr F, <i>06/21/2003</i></font><script type="text/javascript">
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Hmmm...I've never seen nor heard of such a thing. [n/m] -- Mr F, 06/21/2003

Collapse <a href=../ForumFE/reply.aspx?ID=17607&Reply=17560><img src=../images/reply.png width=30 height=10></a> <a href="#" id="anchor17607" onclick="return false;">RE: Hmmm...I've never seen nor heard of such a thing. [n/m]</a> -- <font color=#0000ff>cuzncletus, <i>06/27/2003</i></font><script type="text/javascript">
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RE: Hmmm...I've never seen nor heard of such a thing. [n/m] -- cuzncletus, 06/27/2003

406 blocks often had the letters "HP" cast in. -- Royce Peterson, 06/28/2003

Collapse <a href=../ForumFE/reply.aspx?ID=17609&Reply=17560><img src=../images/reply.png width=30 height=10></a> <a href="#" id="anchor17609" onclick="return false;">Cast in or stamped?</a> -- <font color=#0000ff>Dave Shoe, <i>06/28/2003</i></font><script type="text/javascript">
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Cast in or stamped? -- Dave Shoe, 06/28/2003

Collapse <a href=../ForumFE/reply.aspx?ID=17610&Reply=17560><img src=../images/reply.png width=30 height=10></a> <a href="#" id="anchor17610" onclick="return false;">RE: Cast in or stamped?</a> -- <font color=#0000ff>cuzncletus, <i>06/28/2003</i></font><script type="text/javascript">
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RE: Cast in or stamped? -- cuzncletus, 06/28/2003

Bore it to 428? Chances are not good. -- Dave Shoe, 06/28/2003