I have run the same block, heads, cam, lifters, and intake since 1993. In '07 I spent about $3500 on a rotating assembly, oil pump, roller rockers, and valve springs.

This is a 440 +.030, 590 cam and 906 heads. It has run 10.24 at 128 in a 2800 lb. Duster. The 440 is very reliable when kept below 700 HP.