340 Lifter failure, now what

Decided to change rocker arms today on my 340 and check pushrod length. First pushrod I took out the hydraulic lifer fell apart... oh, and the pushrods are not 7.5" long, only like 7.4" long so thats my lifter tick and why the lifter failed I would say.... so now what... am I going to have to pull the intake or is there a way to sneak the lifters out thru the head?
You will need to remove the intake.
There is a fair chance that cam has suffered some damage.