Pole
Yes you could sleeve them, but you are beating a dead horse just go out and buy another low mile used motor, that is the intent of the series.
If USAC or Powri were to raise the displacement of the 4 valve motor to 2500 or 3000 cc's and mandate they use stock blocks and stock heads with altered porting allowed to include welding, you would probably see the demise of the $30,000.00 motors in a very short time.
Honest Dad himself
