Piston ring groove clearance, ring end gap and piston pin specs…

PlStOn n Top ngdtogroo and bone 255 and 351 W ................................ . Lightnlng ...................................... 0.0013to 0.0033 inch 0:: ................................................................................. 0.0020 to 0.0040 inch .. Serv' ................................................................................. 0.0013to 0.0033 inch ' :3:qu Vice ilmit .......................................................................... Snug fit in groove e , Hng end gap ........................................................ 0.002 inch max increase.- E OD COmpreSSion ..... Ix- Ben-om COmpression .................................................................. 0.010 to 0.020 inch "it ,- :35 and 302 .......................................................................... 0.018 to 0.028 inch 0.31 N ..................................................................................... 0.010 to 0.020 inch Lightning ............... . ................................................................ 0 .018 to 0.028 inch OH ................................................................................................ 0.010 to 0.040 inch iston pin diameter (standard) ........................................................ 0.9119to 0.9124 inch 1 . v ' - - learance . 'Sm pm to p'Ston C ................................................... 0.0002 to 0.0004 inch 255 and 302 hi .......................................... 0.0003 to 0.0005 inch ' nIn ............................................ 351 W and ng nectigg rod bushing Clearance ............................ interference in iston Pm'to'con heel haft and leW wanks .