54 235 848 head w/std valves:
1) with valves fully closed, should the springs be able to be turned some by hand? Mine can.
2) I'm finding differing specs on a 54 235 spring free height. Trucks call for 2.16" and the Vette and BelAir call for 2.25". Both w/o rotators.
Any problems w/the 2.25" spring in a truck 235?
3) Would changing to exhaust rotators be a drop in?
Dave