Hydraulic lifter head on solid lifter diesel?

[mbr]

Is this an easy swap?
I have a 1.6na diesel with solid lifters ('82). Can a hydraulic lifter head be swapped easily?
Thanks

[samuraikid]

i did it. i pluged the return oil passage with a hi-temp sylicone. and as for the block, i use a steel renforced epoxy, and it seems to be holding up very well. i also used the steel head gasket.