I saw a specialty company do it to one of the fire razed pipe line engines we were overhauling back in the late 60`s , little did I know ,I `d have to do it to a 426 hemi block in the early 70`s , did it in my driveway ,on the tailgate of a 67 ford pick up , no special tools , used 1/2'' 20 grade 5 bolts for pins , locktited before shearing the head off/"overtitened to u cal guys" -- that hemi is still running today around Salina Ka.
Nothing new under the sun.
