Had a rocker fail in my original 1964 engine and would like to replace all while I am at it. Summit has some either aluminum or steel. Some have a 1.5 ratio and some have 1.6 ratio. Not sure what the difference is and if either would work. Is there any other source for these? Thanks in advance for any help. Dave ---- Please address private mail -- mail of interest to only one person -- directly to that person. I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! '62 to '65 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html.