Need some advice

[classic68]

I have a 455 cu. in. with a turbo 400 trans. The eng. spun a bearing and scoured the crank. I have a real low mileage 340 cu.in. eng. The trans. is a 1971 and the eng. is a 1967. My question is will they bolt up to each other? Any help guys!!!!!!!! classic68 Kenny PS the eng. is a 1967 and the trans is a 1971

[Dr. Frankenbuick]

Yes, they will bolt up with no issues. You will need to change the frame mounting pads to the small block style for the 350. There are some other changes for exhaust and springs that shold be done. it may be easier and cheaper to have the crank turned and put a new set of bearings in your current 455.