I have a 51, 235 with hyd lifters. I have broken 3 seperate intake rocker arms # 2,5,6. Each after between 25-40 miles of driving. The engine runs great and I'm real happy with it. Except for the rocker arms of coarse. The push rods are not bent. Do you suppose the intake valves are sticking? I put Marvel in the oil and gas but in 25 miles another one broke. Any ideas? Thx.

Glenn,


Scootin thru with a 52,
Good, Economic and Classic
1952 Chevy 1/2-Ton