Aftermarket LSX block question
Is this common and they need to be machined ? Why wouldn't this be machined I want to use all 6bolt holes so this doesn't make sense to me.
I am confused!!
Snap On FRDH121 for 3/8" (torque adapter)
Snap On FRDH141 for 7/16" (torque adapter)
These are for 12 pt nuts.







