413 max wedge?

What say you real or fake?

All I can say is the bores are notched at the top for exhaust valve clearance like a MW should have.

I would like to know the sonic check numbers on that block. I had a 426 block bored to .100 over and it ran very well.

looks like it has the bore notches - those stamping on the ID pad look a little different than what I have seen on the early blocks - but it is possible as there was no real consistency to the stamping as they were applied by hand on each block.

Wouldn't 6-19-62 be for a '63 car and weren't the '63 max wedges 426's? Also, its blue instead of orange. I wonder if that block is from a Chrysler 300-J with the bigger exhaust valves...(1.74" instead of the standard 1.60" in '63 non Max Wedge big blocks). Maybe the engineers felt the need to unshroud the "big" exhaust valve in the special 300-J heads with those bore notches.

With my limited knowledge, I'd bet that block is from a full size '63 Chrysler.

A 62 413 block should be stamped S41 a 63 would be T41. Not sure how the early 413 MW blocks would be stamped.

I've never seen a 413 block stamped 413. They usually said 41 on them but I'm no expert on MW stuff.

The block casting number is correct for a '62 413 MW. The bore notches and stamping font/style looks correct. Does the block have the AAQA on the front?

The '62 MW was introduced mid-year and a June casting date could be a '62 model year (production usually ended on July 31 but the MW was built off-line).

I don't know if this has what you're looking for, but it's likely worth reading: http://racehemi.maxwedge.com/topics/castings.php

the stamping has the correct sequence as the later 426 MW blocks were 426TMP for Stage II and 426VMP for stage III

Yes, see if it has this:

What does the AAQA mean? I've got a reg. 413 block with AAQA and I know it's not a MW block.

Not sure if it has the AAQA .I was wondering about the mold set number , after the casting number .i don't know if all Max wedge blocks where a (1) and as you can see this one is (4) .
It's throwing me because the ID pad looks correct.

I think the dash number after the casting number has no bearing if it was going to be a Max engine or not.
I know nothing, but the stamping looks like factory stampings often do. The fact that the stamping has all three digits of the engine displacement, and that it has no year letter code tells me that it didn't come in a passenger car. In my mind the block is legit. But this is not my field of expertise.

R.

Learning something, mine had 426 TMP HC 63, can't remember the month. I got it in a 62 Dodge post car, spun bearing, whole car for $500

Yes, I've seen the 426 TMP HC stampings before with the large font stamp. I've never seen a 413HP stamp though. Not saying that proves anything since I'm sure I don't know everything.....

AAQA as I understand it was the foundry markings - I have seen street wedge 426 blocks with the same marking

here is a 413 - note the use of a 1 as a dash - all were hand stamped so almost anything is possible

The dash number following the main casting number refers to the number of core plugs changed in the casting core...all engines have them.

I was lead to believe all Max wedge blocks where the first core plug, the thickest walls of all castings.

All 3 max wedge blocks I have are the virgin core plug , ie (1)

So this being a 4 th plug change ,would that be a questionable tell to its originality?

-1 isn't virgin, absence of a dash number is virgin. (no core plugs replaced)

413 HP engines were not always Max Wedges, some were also Chrysler 300 engines, Police engines, and Marine engines. The stamping looks pretty good (original) and there appears to be turquoise blue paint under the bright blue repaint. My guess is that (if the stamping is legit) it is a late 1962 or early 1963 Chrysler 300, Marine, or police engine.

I agree with Scott,the HP was found on all 4 barrel and dual 4 engines,car truck and marine.I have one in the shop that came from a Chrysler that had a 4 barrel carb.