OMC Stern Drives And Motors 1964-1986 Repair Manual., Page 517Get this manual
APPENDIX FORD V-8 302 CI 175 HP 1977-79 302CID 190HP 1977-79 351 CID 235 HP 1977
351 CID 240 HP '78 250 9
Connecting Rod Length Center-to-Center Connecting Rod
otal Difference
Pin bushing and crankshaft bearing bore must be parallel and in the same vertical plane within the specified total difference ends of inch long bar measured 4" on each side of the rod