Harmonic Balancer + Crank Identification Big Block

[XXXGoldL34M20]

i have a Harmonic Balancer part #3963532 and a Crank part #7416 with other numbers M010 R020 GMT2 4-74 S-363 P4426.
any help in identification will be much appreciated.

[69 Post Sedan]

7416 is a 454 steel crank. With the numbers you gave the casting date appears to be 1974.

Double check the number on the harmonic balancer. I think you have too many numbers. http://www.yenko.net/ubbthreads/images/graemlins/dunno.gif

Kurt

[XXXGoldL34M20]

[ QUOTE ]
7416 is a 454 steel crank. With the numbers you gave the casting date appears to be 1974.

Double check the number on the harmonic balancer. I think you have too many numbers. http://www.yenko.net/ubbthreads/images/graemlins/dunno.gif

Kurt

[/ QUOTE ]

your right,just double checked the last #7 should not be there for the balancer. thank you about the crank.

[69 Post Sedan]

3963532 is a 8" balancer for a 454.

[XXXGoldL34M20]

would both parts work for a LS6 motor?

[69 Post Sedan]

Yes, I believe so.

You need to get more information on that from someone with more knowledge than me.

I'm sure someone else will chime in.

Kurt http://www.yenko.net/ubbthreads/images/graemlins/beers.gif

[Unreal]

The M010 and R020 are most likely machine notes...10 thou on the mains and 20 thou on the rod journals.

[Mr70]

Both your crank & dampner were exclusive to the 1970-71 LS-6 only.
Those parts were available for years later on for service,as your date denotes.

[XXXGoldL34M20]

thank you guys,i appreciate the great help here http://www.yenko.net/ubbthreads/images/graemlins/biggthumpup.gif