426 max wedge ?

my factory 1967 dart, coronet, charger, service manual. shows the 383-440 engine. A Maltese cross on the I.D. pad means. U/S crank, M-2-3 ect indicating No. 2 & 3 main journal, and / or R-1-4 ect indicating No. 1 & 4 connecting rod journals. under by .001". with X means under .010". letter A = .020 O/S cly. a diamond = .008 OS tappets. sorry thats the only book i have close.