I have a 1983 Ranger 2.3 2wd-4spd. It spun a rod bearing. I also have a 1990 2.3,4wd-5spd. Can I use the block from the '90, and put my '83 head onto it? First, since the hole for the distributor is still there on the '90 block, can I assume that the distributor drive is also still the same in the '90 block? Secondly, I am concerned if all the oil passages, water passages, etc. will still line up between the '83 head, and the '90 block. Are there any other issues I should be aware of, besides keeping in mind I will have a FRANKENSTEIN'ed '90 block, and "83 head? Can I use the entire '90 motor-block-crank-pistons, transplant it into the '83, drop in my distributor, and mount my entire '83 head assm. to it? What about the timing pulley on the crank? Are they the same, since the crank journals were changed? I am also wondering about things like valve/piston clearance issues. Someone suggested I may be able to use the roller cam and followers from the '90 head, onto the '83 head. Any help is greatly appreciated.