Hey guys! I ended up making a junkyard trip yesterday and found a non turbo 4g63 shortblock. The entire engine assembly was untouched so I had to basically break down the whole engine. I first pulled the pan and found about 4-5 small aluminum chunks inside. I figured that the engine spun a l bearing. I checked for crankshaft endplay and got .004mm. So the end play was in spec. I pulled all of the mains and there seemed to be some uneven wear on a couple but nothing too serious. I then checked the rods and it looked like #1 and #4 rod bearings spun. They weren't totally destroyed but they did have scorch type wear on both the bearing and rod caps. All of the crankshaft journals appeared to be fine. Nothing a polish wouldn't take care of. My question is could the block and crank still be in good enough condition for a rebuild. I will measure out the rest of the clearances and such but I want to be sure! Thanks a lot!

Take it to a machine shop and find out!

Here's a video I made today of the bearings in the block.

Only way to know for sure is to mic everything. Pistons and rods can be replaced, and so can the crank. So how's the block/cylinders look ?

tmoney20g said:

Only way to know for sure is to mic everything. Pistons and rods can be replaced, and so can the crank. So how's the block/cylinders look ?

Click to expand...

They look fine. I tried using telescoping gauges and a caliper to measure them today but I kept getting inconsistent readings. So I'm going to grab a dial bore gauge and have another try.

From what I have seen in the vid you have a decent core to build.
Since you will need a set of turbo pistons, you may as well bore the block so you can have proper straight , round cylinders, and have the proper PTW set.

Rods look decent, have the big ends checked for size.