OK, I'm ready to take the big dive here with my virgin be it 300K miles virgin block from my much loved 88M5 & wish to do Once & do it right. IE don't have time or cash to do it twice! My question is what is the factory spec's for block honing? IE torque plate & are block soft plugs removed or? & what is the finish & angle to the finish. Is it nessary to deck block & if so what is the limit of removal of material of the block & head together total? .012" comes to mind? Now who does this service ...Hint I'm in the Puget Sound Chapter & my olod M & won the the Mcar day hi-miles for well two years & I step down this year (would have won again) so I could park my M5 next to a "M1" @Griot's Shop on M-car day...Hey that a blessing in it self! Thanks Lance! Note: I plan on JE or CP pistons as I have a bastard set-up. I have a rare RD racing 90mm crank & rods & rods are 143.5c-c so a stock piston will not work. I would also like rings deves? total seal? or? there are many questions that need to be addressed but I can tell you Yep I use Amsoil 20w-50ARO & plan using Schrick Cams with a splash of S38B38 stuff like 50mm T-bodies & plemum manifold from 3.6-3.8& I have a complete 3.8 DME & dme harness. I would like to have smooth running driver with BoCoo M-Power maybe like 360+ Hp with Torque to boot! Well whats your thoughts....?