Trick Flow® has done all of the tweaking and tuning with these engine kits for small Chevy, so you can get dyno-proven horsepower with no guesswork. Based around the dyno-proven Trick Flow® Super 23® cylinder heads, these kits scream performance. These kits include everything you need to give your towing or street engine a maximum performance makeover! These kits feature a Trick Flow® hydraulic camshaft with a 210/216 degree duration at .050, .440/.454 in. lift, with 1.5 ratio rockers and a 110 degree lobe separation.