**600hp sbm block limit? Or is it bs!!**

In my area there is 550-580 hp small blocks in a lot of drag cars.
I think the reason is simple…. The cost. To build a 600+ SB is going to take a bit more $. Basically need the W series heads.
550-580 hp will run bottom 10’s or high 9’s. Most guys don’t want to run in the 9’s (maybe they do but) due to the added cost of safety equipment and chassis certification they stay were it’s affordable.