mark 5 heads on mark 4 motor?big block chevy [Archive] - Chevelle Tech

: mark 5 heads on mark 4 motor?big block chevy


automanbuilder
Apr 17th, 03, 9:54 PM
I have heard that the mark 5 head will not work on a mark 4 motor, Can somone tell me why this will not work ?Anybody tried it?What year did the mark 5 show up in production?