12-27-2017, 06:00 PM
|
 |
CC Member
|
|
|
Join Date: Apr 2016
Location: Phoenix,
AZ
Cobra Make, Engine: Ex owner of a polished Kirkham 427 S/C. Now Cobra-less and driving a mid-engine German hot rod.
Posts: 828
|
|
Not Ranked
All 428's are externally balanced. I believe all 427 cranks were steel but don't know if they were forged or cast. If both were offered I don't think the minor weight and associated polar moment differences between the cast and forged versions would make much difference in overall engine inertia (nothing that could not be overcome with a flywheel change). The forged piece would have a higher yield and tensile strength and better fatigue properties but I cannot imagine breaking a cast steel crank with a street engine.
|
Threaded Mode
