Need some engine help

[Tshane]

What is the difference in these 2 sets of rocker arms

Small Chevy: 1955-87 262-400, 1.5 ratio, 3/8 in. stud, long slot rockers


Small Chevy: 1955-87 262-400, 1.6 ratio, 3/8 in. stud rockers

thanks /forums/images/graemlins/truck.gif

 

[Don]

1.5, 1.6, The 1.6 arm's, have a higher ratio, More Valve lift. /forums/images/graemlins/eek.gif