29 years after a rebuild....
Here's an update, when I started this investigation , I removed the drivers side valve cover and rocker shaft and initially overlooked the wear under the rockers, as it was minimal. I then removed the timing cover, replaced the chain and gears and added a stacked plate tranny cooler with fan and new radiator shroud. Yesterday I pulled the passenger valve cover and the wear is much, much worse. I took some measurements and the valve spring height is at least an 1/8" too tall. Recessed I guess. They all seem even a cross the tips though. In my mind the question still comes up how expensive to rebuild everything as opposed to rebuilding a set of used heads in better shape. Tomorrow I will be calling a few machine shops. I have one more spare x head and a 202 valve spare J head to work with and know of a set of x heads for sale reasonable price
Here's an update, when I started this investigation , I removed the drivers side valve cover and rocker shaft and initially overlooked the wear under the rockers, as it was minimal. I then removed the timing cover, replaced the chain and gears and added a stacked plate tranny cooler with fan and new radiator shroud. Yesterday I pulled the passenger valve cover and the wear is much, much worse. I took some measurements and the valve spring height is at least an 1/8" too tall. Recessed I guess. They all seem even a cross the tips though. In my mind the question still comes up how expensive to rebuild everything as opposed to rebuilding a set of used heads in better shape. Tomorrow I will be calling a few machine shops. I have one more spare x head and a 202 valve spare J head to work with and know of a set of x heads for sale reasonable price
