360 heads ???

Got a set of 360 heads. #3769974 on my 71 340 motor . R these heads any good not looking to make race car just a max of like 400hp ??

Mid 70's 360 casting. 1.88/1.60. Should be similar to the earlier 1.88 "J" head. No reason you can't get 400hp from them with the right cam and compression, but it would be easier with 2.02's and a little clean up, imo.