Posted By: SC304
v8 Crank identification - 07/15/18 04:37 AM
Has anyone seen or can recommend a chart or quick reference of crank shaft identification for small and big blocks?
Mike
Posted By: SC304
Re: v8 Crank identification - 07/15/18 02:41 PM
Thanks I was looking for a quick reference guide by snouts or flanges.
Great website tho, love the garage commandments
Posted By: JohnRR
Re: v8 Crank identification - 07/19/18 04:43 PM
Thanks I was looking for a quick reference guide by snouts or flanges.
They pretty much all look the same , other than Hemi's having 8 bolt flanges .
What you need is a pair of dial calipers and measure main and/or rod bearing journal sizes.
Posted By: dogdays
Re: v8 Crank identification - 07/19/18 06:21 PM
Yes, the main bearing journal is all you need to know:
2.500", 3.31 stroke (LA not 360)
2.625", 3.38 stroke (B)
2.75", 3.75 stroke (RB)
2.825", 3.58 stroke (LA 360)
360 cast only, others both cast and forged OEM.
R.
Posted By: Locomotion
Re: v8 Crank identification - 07/21/18 01:21 PM
Also visual cast & forged crank I.D. Some cast cranks originally came with counterweights on the balancer/damper & converter. But not all. 318 is a good example. I believe the 440-6 crank balancer/damper may be an exception in forged cranks and had external balance weights.