Lag bolt size for PCM trunnion # rc091001 motor mount

Hi All,

I have a PCM 351w with Trunnion motor mounts rc91001 ( ell shape) with 2 qty 3/8inch holes on top plate and the verticle plate has 1 qty 3/8 inch hole in the lower center
I have mounting blocks that has 6 inch oak block wraped in fiberglass that the motor mounts sit on.
what size lag screws do I use-- 3/8x4 inch galvanized on top plate and a 3/8x3 inch lag screw on the verticle lower center hole?
the 2 top holes are 4 inch on center with the 1 verticle bolt hole is 2 1/2 inches down in the lower center
I don't want to split the wood but I also want to make sure that I use 3 lag screws - your thoughts please

thanks,
tmcboat

Ayuh,.... I'd go 3/8"x 2, 1/2 or 3",.... for all of 'em,....

Drill pilot holes and lubricate screws (saliva works) if the screw holes are in "new" spots (new blocks or holes in different spots in old block)