Yup they are. Best bang for the buck out there IMHO.
Running an L92 cased 416" stroker(4.068" bore/4.0" stroke)in my heap..... made 550rwhp/505rwtq on motor.... BIG hp/tq down low and only need to spin it to a nice safe 6600....
My pile is still pretty heavy and kicks like a pissed off hooker.... can't even imagine how the same curve would feel in a sub 2800# car. Only 775lbs. more to get rid of and go 9.3x's on motor? LOL-