Hi folks, in need of some advice if possible.

Having had no.4 shell spin on a Cossie engine I sent it off to be checked and rebuilt. They found the crank to still be on standard grind but now has a 17thou bend from the shell going.

I then sourced a second hand crank on a 0.5 grind that I was informed was ready to go however once the engine builder measured it it appears no.4 on that one too is fooked and would need a grind to 0.75, but this crank is straight and always has been.

Has anyone had a crank straightened and how has the car been with it?

My options now are:
1) Straighten the 0.25 grind the std original crank
2) 0.75 grind the 2nd hand one
3) Chuck a gallon of V Power and a match at the car and torch the fecking thing!!

Cheers in advance for any advice/opinions