im in the middle of building a 420a race engine and i knew that some of the 4g63 crankwalk and i didnt think anything about it because the 4g63 and 420a are two way diffrent engines but couple friends of mine told me the 420a will crankwalk to does anyone know if thats true or not?

 

No the journals are different....

 

The only thing the 420a will do is blow up... thats only if its not built or has poor fuel managment.