Subtle Difference Between Ductile Iron Rocker Arms intake vs exhaust?
I just measured the pushrods in this 1965 273 which are exactly 7.5" (191 mm) and .3149" (8 mm) in diameter. The chart I found on the internet doesn't show that combination, but shows the '65 pushrods as slightly shorter. Measuring end to end (ball to end of cup) they are definitely 7.5", not the shorter 7.344 in the chart. The diameter agrees pretty close to my measurements .3149" (me) and .312" (chart).
I just measured the pushrods in this 1965 273 which are exactly 7.5" (191 mm) and .3149" (8 mm) in diameter. The chart I found on the internet doesn't show that combination, but shows the '65 pushrods as slightly shorter. Measuring end to end (ball to end of cup) they are definitely 7.5", not the shorter 7.344 in the chart. The diameter agrees pretty close to my measurements .3149" (me) and .312" (chart).
