The Plymouth Weslake DOHC Motor from the 60's

We always thought the 1970 TA head was the only ones drilled for 'offset pushrods'.
But we now know that the 69 X-head had the same treatment the year before...
Hemi re-sized valves with 5/16 stems and raised stands, how TRICK!

How many were done like this???

X head with moved pushrod holes.JPG