I have been told its a no-no if you have a vortex intake, only 8 bolts.
I always use the acc bolts in the heads, or the lifting tabs that come on the
new crate motors.
Good point about the lifting tabs.
Seems like they were just leaving them on from the factory for quite a while.
Should be easy to find on a junkyard engine.
Pete Geurds
64 Malibu SS
64 Malibu 4 door
64 Chevelle 2 dr wagon
