Overbored with block filler
I guess the other question I have is;
What would the rwhp difference be between a 441 CID and 447 CID motor be with full intake and exhuasts mods? If it is about 10 rwhp, then I think I will go with the 4.125" x 4.125" route rather than the 4.155" x 4.125" route.






