[iluv69s]

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: black69</div><div class="ubbcode-body">. I 'think' these were the first forms, of the double hump heads, that we all. The first 461x heads. You did not see another aluminum head on a chevy until 67, and it was a big block. </div></div>

I have a set of chevy sm block aluminum heads dated 1963...(if I recall correctly)....probably rarer than these...I'll try and dig them out to post a few pics

Also I think I read that Mickey Thompson used or was involved w these 59 dated heads