413 Block ID Help for Mopar Newbie

[fmahannah]

I have a 62 413 in a 63 Polara 500. Was told it was a truck block. Can't see the side casting numbers easily because of the headers. Noticed today on the front of the block there is AAQA cast into it with 2 letters or numbers below it. My question is did all truck blocks have this AAQA? Is the only sure way to ID a max wedge block the casting numbers on the side?

Thanks in advance for any guidance...

 

[Glenwood]

My truck block 413 does not have any numbers cast on the side, only on the rear where the oil sender is. I believe maxes have clearance cuts for the valves at the top of the cylinders.

 

[6t4polara]

What are the numbers on the engine pad?

 

[fmahannah]

Looks like T 41 then 1123

 

[FU64RY]

Looks like T 41 then 1123

NO HP on the pad? AAQA is a high nickel content block usually for HP engines.

 

[fmahannah]

NO HP on the pad? AAQA is a high nickel content block usually for HP engines.

No HP unfortunately. When I take things apart to put on the maxie crossram and manifolds I can check the block casting numbers to be sure. From what I know the guy was building a max wedge clone starting with a 413 heavy duty block. Most likely not a maxie block but wishful thinking can't hurt until I know the truth

 

[62 Dart Convertible]

I am no expert, but pretty sure T41 = 1963 413 (as mine is a S41 = 1962).

MW blocks have unique engine pad stamping and as said earlier, valve clearance notches at top of cyl bore.