Asking for Advice Fix 273 or Replace

I have a breather one one side and a PCV on the other side....
The breather is just vented out the botom of the motor....
I most likely will rebuild the 273 commando motor, I still think it has all the correct parts that make it a commando HP Motor.... Strong motor if it wasnt for the blow by,,,,

If I remember right you do a standard compression check. Then to check the rings shoot a couple pumps on motor oil in the cylinder and do the test again if the readings improves much that would indicate the rings are bad. If they don't improve after doing the oil trick probably the valves. Think thats how we did it in high school shop class. I think!

I kinda remember that myself... been a long time class of 77. I will have the neighbor come down and look at it soon, one more car show then retire for the year. I have lots of time to fix for the next years fun. Thanks