Mar 18, 2004 #1 2 2 QK 4 U Banned Joined Feb 14, 2003 Messages 1,303 Found this casted in the piston h521ap/h644p I think they are FM Hypers.... Would it be ok if I put these in a motor making 400-500 horsepower? TIA, Jason
Found this casted in the piston h521ap/h644p I think they are FM Hypers.... Would it be ok if I put these in a motor making 400-500 horsepower? TIA, Jason