Bcurtis90

I have a 82 Toyota 22r truck. I have a bottom end out of a 85 22r with the flat top pistons. The head is off my 82 22r motor. I know the original 22r had the dished pistons. Would this affect anything during this build? I'm running an rv cam and stock everything else. Any tips are greatly appreciated! Thanks!

dropzone

iTrader: (6)

pretty sure the deck height is different plus I think your compression ratio will be fubar

Terrys87

iTrader: (1)

Here is what I found out. The 84 and older is one style block and the 85 and newer is another style block. If you wanted to use an 84 or an 85 style, either should be ok, just stay with one or the other. Some parts will interchange but you will need to look into which ones. I think the timing chains are even a little different but not sure. Some of the older motors had dual row timing chains but not sure when that changed. Some parts that I think will interchange is valve covers, fan clutch, pulleys but double check. If I had my choice, I would stay with the newer style block (85 and up) as there were more produced and most likely easier to get parts for in the future.

Copied....
I got my Timing Chain on and had to replace the Timing Cover due to it being worn. I tried to use a early model 22r and they wont interchange. Thought I would put some info up to help others identify what they may have.

84 and older. 22r has no dimples/circles and the number "2" on it. Twistedyota got it right on the height thing, see the last picture for a good example. I also tried to mark which bolt holes for removing the timing cover on down the road when I have to do a chain again. Hope it wont burn off but it if does I tried to come up with an easier way. Never can remember which bolts they are.


22re has "6k" and dimples/circles. 85 and up.


Here is what I am talking about on the 1/8th inch height. I used a lockwasher to help show how much of a difference. This cover is 22r. Seems like the oil pump bolts were to short. Hope this will save some one some trouble. It is an early model 22r timing cover on a newer 22re block.
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YotaSnap

There are some big differences in the engines. Your compression ratio would be off for sure.

wyoming9

iTrader: (1)

It seems we get this question about once a month.

Is anything like this in the FAQ`s it should be??