Quote:
Originally Posted by 70GS455
Pressure angle (in a roller) is what breaks lifter bores. It's the sideways force imparted by the lobe onto the roller as it is opening and closing
Sent from my SM-S901U using Tapatalk
|
Definitely worth mentioning if someone is new to Pontiacs. Some have gotten broke with even mild hyd roller set ups. Some blocks are strong than others, I did a lifter brace a few days ago, and just did it for #2 and #6.
Opening side is quite a more harsh was what I was trying to get across.