Mopar 413/426 Max Wedge block casting number confusion

dukeboy_318 said
Why not mention that earlier?

Okay. You have one of the 3. But by itself, it doesn’t mean much. Gotta have more.

Do you have the notches? We know you don’t have the casting numbers. But 2/3 would lend a bit more credibility to your theory. I will give you that.

The 3R means it’s a later run, so end of 1963 model year, so June-August casting most likely.

What’s the webbing look like? 426 max wedges had extra thick webs that they ended up using in the Hemi Block design in 64 and beyond.

Where are the webs ??
See the earlier pics, AAQA, its there
It's a mystery, the casting block number shows 2 different applications, 59-65 passenger 413/426, and Max Wedge 62 413, depending on where I sourced the info. The casting date is 7/63. I thought 413 max wedge was 62 only. The pad indicates a 413, build date 9/63. It has a 426 bore 4.25. I'll do further research , but it appears the 516 heads are correct for a std 426 63-64 it's "appearance is a that it's a virgin. Valve notches, it appears the max engines had either 208/188 valves or 214/181. With 181 exhaust , block notching not necessary. So..im think that the 208/188 produced more hp so they were adopted for 63-64, and the 62 had the 181,'s, no notching necessary. Once it gets completely torn down , more light will be shed
No phone or email available for Greg Lane , a max wedge guru. Trying other sources. I did read some on his web site info there that the AAQA mark indicated a max block ?