Posted By: jeff57
f383 quandry - 09/25/08 08:59 PM
i have a 1970 383 that appears to be a cast iron crankshaft/counterweighted balancer.anybody know what i have here? block is stamped f383. jeff57 
f383 quandry
Posted By: John_Kunkel
Re: f383 quandry - 09/25/08 09:42 PM
Cast cranks were used in '70 383 2-barrel engines when mated to an automatic.
Most sources claim the 383 cast crank didn't arrive until '71 but '70 was the first year.
Posted By: JohnRR
Re: f383 quandry - 09/26/08 01:53 AM
Quote:
i have a 1970 383 that appears to be a cast iron crankshaft/counterweighted balancer.anybody know what i have here? block is stamped f383. jeff57
whats the assembly date of the engine ? are you calling it a 70 because of the CASTING date ?
but as John K states , 383 2 bbl motors got cast cranks , I have no clue when that started
Posted By: John_Kunkel
Re: f383 quandry - 09/26/08 08:47 PM
Stamped F383 makes it a '70.
Posted By: sixtyninefuchs
Re: f383 quandry - 09/26/08 10:07 PM
I just took a virgin "F" 383 apart-casting date is 7- tewnty something -69
383 2 barrel out of a newport. It has a steel crank and internal style balancer.
Very early 70 model year could have had steel cranks
383 2 barrel out of a newport. It has a steel crank and internal style balancer.
Very early 70 model year could have had steel cranks