Originally Posted by JohnRR
Originally Posted by John_Kunkel
The relief ball didn't arrive until late '68.

The '66 VB had some issues , look for a crack shown in the pic below and, if you intend to do many manual 1-2 upshifts, an orifice restrictor shown by the red arrow needs to be drilled out to at least 1/8".



John , what causes the valvebody to crack there ?


I dunno, I've seen at least two crack in the same place. shruggy


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