Indeed, and when rebuilding earlier engines, including 1600 dual ports, it's
standard practice to add inserts to all the case bolts because they are
prone to pulling out.  I.e.,stock they weren't inserted.
bmc  :)

>> I may be wrong, but you'll have to go some to prove that anyone would cast
>> any significant quantities of mag ally's into an auto engine - for one, all
>> the threads would have to have inserts.