408/360 question

extra oil holes? maybe in the front oil galley plug to lubricate the chain....i did not drill any extra holes except in the oil filter mounting plate and in the mentioned plug.

I´ve got a scat cast crank assembly with the mentioned I-beam rods - went in with absolutely no problems, no grinding necessary. It´s easy to do, take your time, check the clearances and clean everything twice.

your other question: scat sells 360 cranks for internal balance, check their website.

Michael