I recently did a compression test and and found almost none in cylinder number one. I pulled the valve cover and found a push rod punched through the rocker. When i went to fix that i figured I'd glance at the lifter, and it didn't look right nor did the new push rod sit right. I pulled the intake and that lifter had come apart leaving small parts in the valley. It's a 403 that i rebuilt about 10 years ago. Wondering if anyone had any experience with this or knew what could cause it. Thanks