Originally Posted by fast68plymouth
3 customer motors.

2- 440’s and a 493.

575hp, 625hp, 695hp

And easily a dozen or more cracked stock steel 440 cranks after they’ve been in bracket cars for a while........usually multiple cracks.
Actually....... more uncommon to have it not be cracked.





But when I was running high 9’s with Stock cranks after 3 years when I did a rebuild I stopped even magnifluxing then. They always showed cracks so I just started over with a fresh crank and threw that one on the scrap pile

1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27

Livin and lovin life one day at a time