Factory Rocker Shaft Oil Holes-Vary by Year?
273 shafts pictured below With the two oiling holes and a banana groove.
The TA has the a small oil hole in the banana groove as do these 273 shafts and both also have a second larger hole for the pushrod adjuster. The TA shaft has the pushrod oiling hole offset to one side for the intake rockers due to the offset in the intake rocker.
View attachment 1715559669 View attachment 1715559670
273 shafts pictured below With the two oiling holes and a banana groove.
The TA has the a small oil hole in the banana groove as do these 273 shafts and both also have a second larger hole for the pushrod adjuster. The TA shaft has the pushrod oiling hole offset to one side for the intake rockers due to the offset in the intake rocker.
