I have a 427 sideoiler w/ 27000 miles probably ten years. I t has a Crower solid cam and shell lifters.It ran great .I had no indication that there was a problem when I removed the intake to have some work performed. When I reaasemble dI had one valve setting that wasn't correct. #7 intake was loose. I have since found that# 1 ex and #7 int are mushroomed and will not come out the usual way The cam is suspected to be going flat .Any reccamendations Brands ?Grinds ? shell lifter again or roller setup.I'v removed Intake manifoled ,water pump,all free lifters.The lifter bores have
oil gallery hole I'll invesrigate and see if the gallery is functional.I understood that the only 427's with hydralic lifters were 68 T bird.Am I wrong?Any easy ways to tell if the lifter gallery is functional?I remember blocking off lifter galleries in a 428 and 406 to get more
oil to crank. I remember reading that Brent lost a roller during breakin .Why?