Eagle Forged Stroker Crank CRACKED

George Jets said

Many years ago friend's S15 pickup with V6 broke the crank in half.

Another friend started it up, drove it on the trailer knocking to beat heck. (I was not there)

Anyhow reman .010/.010 crank new bearings, flipped the engine upside down on the engine stand completely assembled.

Swapped out the crank and bearings. In 24 hours he was back on the road again, ready for work Monday morning.

He drove it many years after that.

Had never seen that before, where the crank snaps in half, but in a manner that it still turned the front half of the crank.

Kind of what the OP has pictured above.

Glad you caught it early before it grenaded the whole engine.

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In the 1980’s I did the same thing on a 440 but I saw the oil pressure doing something funky on a 10 second pass so I loaded up the car and took it home. I had an open trailer with an open deck so I pulled the pan and started pulled main caps. I found the stock 440 crank broke in half so after work on Monday I unloaded the car, pulled the engine while my local speed shop did a crank for me. The hardest part was working a full time job in the mill and then replacing the crank but I had it rebuilt and made Friday nights point race. I did need to call on two friends to hold the rods back as I lowered the crank in. I wouldn’t do half the crazy stuff today that we used to do. But we sure had fun.