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How strong are the 250 blocks?
Could I use the OE Crank?"
With about 1000 HP,it seems these engines will stay together, with stock crank & maincaps.
Guys in Brazil with there turbocharged 250's are making up to 1400 HP with stock cranks ,stock main caps,no girdle.
With 1/4 mile times of 8.2 ,that is the record for a car.IIRC.
That is about the limit it seems for stock items.
Just know that @ these power levels,the cranks do walk around & they do eventually break. Not bad for stock components though,,right?
Now this information I am telling is what I have been told from friends in Brazil.
But,,, I have seen the videos on the record setting Dyno HP & 1/4 runs.
MBHD