<html><head></head><body><div class="ydpc92ee0b7yahoo-style-wrap" style="font-family:Comic Sans MS, sans-serif;font-size:16px;"><div id="ydpc92ee0b7yiv2369121233"><div style="font-family:Comic Sans MS, sans-serif;font-size:16px;" class="ydpc92ee0b7yiv2369121233ydp676a8dc0yahoo-style-wrap"><div id="ydpc92ee0b7yiv2369121233ydp676a8dc0yiv0508496476"><div style="font-family:Comic Sans MS, sans-serif;font-size:16px;" class="ydpc92ee0b7yiv2369121233ydp676a8dc0yiv0508496476yahoo-style-wrap"><div dir="ltr">I am preparing for the rebuild of my 100 engine & I need your help with a few questions. </div><div dir="ltr">My intent is to build a strong/fast street drivable engine. The block will be bored out .020" to 0.30" over & will have a Welch "fast road cam". I am planning on an aluminum head, steel crank & forged, light weight connecting rods. </div><div dir="ltr">My first question is should I have the block boiled out & if I do will that require replacing the cam bearings? I recall reading that they are not currently available. Is that still true?</div><div dir="ltr" data-setdir="false">I was planning on a compression ratio in the range of 9.0 to 9.5. I notice that some suppliers only offer 8.6 as their high compression offering. What is the reason for this? Is it standard practice today to use pistons with 3 rings? Where is a good domestic source for pistons?</div><div dir="ltr"><br></div><div dir="ltr" data-setdir="false">Gary Hodson</div></div></div></div></div></div></body></html>