# 6 spark plug access hole Big Block
Here are a couple pics one from over head, then i have a poker stuck through there for reference to some landmarks and then another over head with the poker sticking through...hope this sheds some light. Your friends pictures are actually pretty close. Mine do not show elevation only distance from the rear UCA bushing.
Here are a couple pics one from over head, then i have a poker stuck through there for reference to some landmarks and then another over head with the poker sticking through...hope this sheds some light. Your friends pictures are actually pretty close. Mine do not show elevation only distance from the rear UCA bushing.
