273 Build

Wyrmrider said
compare the 8:1 and 9:1 and 9.7ish solutions with what AJ posted
I'd start with the 9.68 solution pistons and late heads and open the chambers a little if that too much compression (as opposed to using thick gasket keeping the quench)
the cam Bullet recommended was for sealed power NOS pistons most likely stock or lower than stock compression
YMMV
I asked the poster in that thread for the compression height so we could compare EGGE, domed, and other piston solutions- you might PM him
IMHO most of the book cc's are smaller than reality
CC yours and see which posters have cc's theirs- makes a big difference especially on a small motor
which is much easier to over duration cam than say a 360 or 400

I read that post on the "Doggyness" of different compression levels. Unfortunately my question was more to gage what I have to work with than what I should be aiming for. The cylinder walls still show the crosshatch marks from the hone and no discernible ridge at the top of its travel so those .040 flat-tops will stay. The heads wont get shaved unless the straight-edge says they need it. I will inquire of the machinist about any budget minded porting tricks he's learned from building engines for round track racers. Not any of that expensive custom hogging out. Wait... This is starting to look like Yet Another Another 273 Build thread that I'll start once we have an idea as to whether we can save these heads or if we shall go straight into a 318 build.