Crankshaft
12-03-2015, 08:24 PM
#1
Racer
Thread Starter
Crankshaft
I have a 63 327/300 CE motor in my 63 coupe that could use a rebuld. I was wondering if these motors have a forged or cast iron crank. Is there a way to verify what I have here?
12-03-2015, 08:29 PM
#2
Team Owner
Member Since: Oct 2000
Location: Washington Michigan
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Last edited by JohnZ; 12-03-2015 at 08:34 PM.
12-03-2015, 08:48 PM
#3
Le Mans Master
Member Since: Oct 2002
Location: Las Vegas - Just stop perpetuating myths please.
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First of all i think all the early cranks where forged. In fact my casting numbers books show the 327 cast cranks didnt start until 1968. The only cast cranks in 1963 where for only 283" engines.
If u can look at it a forged crank will have a wide parting line where the tooling smacks together to hammer it into shape. Cast cranks will have a very thin parting line. Also if u have the crank out of the block u can just tap it and listen for a ring. Forged cranks will ring but cast cranks will just thud.
Sometimes u/we can use a block casting number to find a forged crank. Also the stamped number on the block can give us the application. Now of course if u have the crankshaft out of the car u can look up the information for cast or forged.
Now the fear of stock cast cranks is really unfounded. Stock cast cranks are strong and used frequently for mild performance - just not high performance applications. What im saying is unless your building a 500hp, 10sec machine the cast crank should work well enough. Just have it crack inspected/magnifluxed.
If u can look at it a forged crank will have a wide parting line where the tooling smacks together to hammer it into shape. Cast cranks will have a very thin parting line. Also if u have the crank out of the block u can just tap it and listen for a ring. Forged cranks will ring but cast cranks will just thud.
Sometimes u/we can use a block casting number to find a forged crank. Also the stamped number on the block can give us the application. Now of course if u have the crankshaft out of the car u can look up the information for cast or forged.
Now the fear of stock cast cranks is really unfounded. Stock cast cranks are strong and used frequently for mild performance - just not high performance applications. What im saying is unless your building a 500hp, 10sec machine the cast crank should work well enough. Just have it crack inspected/magnifluxed.