555 bbc, 10.5:1 comp,gm 502 block,gm ovalport heads fully race ported by greg good and assy by sam school. this is mike kurtz old motor.fresh rebuild. eagle rotating assy, stroke.r-274 sollid roller cam.biuld and dyno by westside performance machine shop. never ran in car.dyno 710.8 hp and 636.4 trq to the crank on 93 octane.has sfi flexplate,super victor intake fully ported match to heads,chevy racing black valve covers. full long block from intake to oil pan. spent over 10k will let it go for 8500.please call 832-398-9283