Quote:
Originally Posted by dcdoug
Are the service blocks still considered NOS, especially in the case of the 427 when they stopped making them in the late 60s and then did an additional run in the early 70s?
|
NOS, (new old stock).. They'd be considered NOS if they were new and unused. I'd heard on some of the later 427 "service blocks" core shift was a greater problem than the earlier runs, nothing hard to substantiate that though.
BTW... Some of the 427 service blocks (irrigation/pump duty intended) were not "cross-bolted", simply the 2 bolt bottem end with press-in freeze plugs too.
Dave