BBC nodular iron crank?

[Rickey]

I just scored a 70 big block I would like your thoughts on. casting number is 3963512 that I looked up to be a 69 427 or 70 454. it is stamped CE0 which would be an over the counter or warranty replacement 1970 454. the crank number 353039 crosses as a 1970 nodular iron 454 casting.

I was hoping for a forged 427 crank. I have never heard of a nodular iron crank- always cast or forged steel. i know nodular rear castings are stronger than others, so where does this thing stack up? application will be 90% street, about a 600 hp toy with a stick that would see some rpm's.

Thanks

[HI WINDING MONZA]

300- 400 hp on a cast or nodular crank, 500 hp on a steel crank , everything higher , Forged.

Cast - 65000 - 80000 tensional psi strength

Nodular- 100000 tensional psi strength

Steel - 105000 tensional psi strength

Forged - 110000-140000 tensional psi strength depending on mixed materials.

Plenty of talk on the web of 7000+ rpm on cast cranks.

Doug in P.R.

[Rickey]

thanks