454 bored 030 over is a 461 i believe...454 bored 060 is a 468 for sure.
Look at your fan and shroud...the fan should be halfway in the shroud and half way out...in otherwords...centered. You might still have the 350 shroud (wider than a 454 shroud)...thus causing your fan to be tucked all the way in.
Oh, and welcome to the board.
-Jeff
|