Hi all, I need help, had my 413max wedge harmonic balancer getting balanced with the engine and it's garbage!! My question is, are 413 max wedge balancers the same as any big block balancers? As long as it's a internal balancer! Trying to get the car ready for Vegas!! Thanx.

As far as I know, I've owned a bunch of the early motors, the 1962 to 1966 B and RB (316,383, 413, 426W and maybe some early 440)had the same balancer AND TIMING COVER. The early timing covers have a straight timing tab, the 1967 ( I think is the first year of that change)and later ones(that are 10 degrees different in the location of TDC ) have a curved timing tab that shows 10 ATDC, zero with a hole in it, 5 degrees BTDC, 10 BTDC and maybe 15 BTDC on them. The pre 1967 straight tabs have zero, 5,10, 15 and 20 degree BTDC I think that is accurate on the covers, the balancers timing mark is 10 degree different(closer to straight up) on the early ones compared to the later ones. if you have a after market SFI balancer you can cut the timing tab on the timing cover to make it show TDC any where you want it same thing on using a timing tape, you can put zero where it needs to be for your timing cover The timing tapes need a clear coat(several coats works better ) of hard paint over them to keep them on and prevent them from blowing off the first time you rev it past 4000 RPM

x2 ...... but there is a diff in the 413 motorhome one. DIFF dampner and timing chain cover.

And there is one sponsor on this site that indicates THESE PARTS are of some higher value.

They are a nicer part .... never seen one of them move or fail ... but getting a crank pulley on a race-type application would be ruff.

I'll go out to the shop Sunday and get a picture of the balancers side-by-side.

Cab,
Way back before SFI balancers, a buddy of mine that's old as dirt told me to run the scalloped ones because of being lighter. He said they came off 383 2bbl engines. I've seen them 4bbls also over the years. That's my take on them.