Quote:

I know some shops love the roundy - rounders, but their guys have the higher end stuff and keep a spare in the trailer. Some shops avoid it, saying there's no money in the "claimer" motors and when average racer blows his junk up he needs it for the next weekend which disrupts the shops regular work.



I agree,but I also see crate engines as a big stab in the back for engine builders.
I built a few roundy round small blocks over the years and they did well. The main difference between building those and drag race engines is in the drivability. Getting too much power can loose races just as easy as not enough. Wearing out a driver with too much on and off the throttle looses races.
Nice smooth torque curves and part throttle drivability for when the caution flag is out is a big deal there.
Keith