This is a set of almost (BRAND NEW)1.6 stainless rocker arms from comp cams. The part number is #1105-16. These rockers were used for exactly 4 dyno pulls under 5400 rpm, maybe 4 minutes total run time. There is nothing wrong with them, I am selling them because I need offset rockers. Some of the rockers do have a very small nick on them where the spring lighty rubbed, but will not affect them in anyway. They are designed for a 7/17 stud mount. Also, they come with the poly locs. These come with CompCams LIFETIME WARRANTY. Price only $250 , thats FIRM