There is another thing you forgot to mention that the RAII only used the 1:55 rockers & the RAIV used the 1:65 rockers. The overall lift of the cams in both were different to. The RAIV total lift was .520 & if I'm correct the total lift for the RAII was in the .480 realm. The RAIV was a better version of the RAII heads. Each step was just a bit better. Although there were some back in the day that didn't like the RAIV cam but loved the RAIII cam. I like the RAIV cam & have used the Crane blue print version in the last 5 $%% & $)) builds. I love the way they work for me. & I use the 1:65 rockers on all of them to.
|