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Crankster · 10-03-2021, 08:42 PM

But, it's also true that other engine designs of the time had the same poor maintenance practice (with the same terrible oil) and they didn't have the upper valvetrain problems. Definitely a weak spot on these Y-Blocks, the rocker & shaft assembly is otherwise pretty stout.

10-03-2021, 08:42 PM	#19
Crankster Senior Member Join Date: Oct 2017 Posts: 563	Re: rocker arm oiling problems on Y block But, it's also true that other engine designs of the time had the same poor maintenance practice (with the same terrible oil) and they didn't have the upper valvetrain problems. Definitely a weak spot on these Y-Blocks, the rocker & shaft assembly is otherwise pretty stout.