thats what i've seen from v-specs and all my go's have run for gallons and gallons. i would get a go over any other based on cost v. performance, fast as any other motor and run forever. once i a while there are duds in the batch (cracked case) like any other motor (v-spec). if money were no option i would go back to the rb's, just gallon after gallon of fast consistent running. gives you more time to focus on other problems at the track like set-up, repairs, tires.