Originally Posted by Racer00:
Has USAC changed the rule for the Silver Crown cars to allow aluminum blocks? I have been following one of the Facebook pages and one team has purchased and is building an aluminum engine. I checked the rule book this morning and Rule 219 C 1 states that no aluminum blocks are allowed.
I did not see any announcements from USAC at PRI regarding a block rule change. Have all of the 2014 registered teams been notified?
when did offy start making aluminum blocks?