2015 rules said u can replace basically all but that block, head, & crank. I know you don't HAVE to, but you CAN...just like u CAN buy as many $168 tires a week you want...idgi...

WAY more than 3 "national" engines cars were there, or ALMOST (I was just hours & a few $100 away - actually I posted that on IoW back in early Sept...lol) were there. Many got interested once the schedules moved around (races added, etc) & the restrictor sizes got smaller (the engine I have was a 2" stack).

It is what it is tho...someone would have to make a motion at the meeting to have another vote...