413 Motor /Wedge

RustyRatRod said
Every V8 big and small block engine Chrysler made between 1958 and whenever the last small block Magnum was build was a wedge. Every single 413 ever made had wedge heads, just like every 350, 361, 383, 440, 273, 318, 340, 360. Wedge simply refers to the shape of the combustion chamber. It's nothing special.

Now, Max Wedge on the other hand is completely different.

And so were most other designs, including Ford and Chevy "most" of em

"Max wedge" is a term that gets "INCREDIBLY" over-used. According to the internet, there must be at least 10 times as many "max wedges" as were ever produced!!!

There were actually several versions of the max wedges ,all of them awesome in their day. In "short terms" if they are factory iron heads, and DO have a heat crossover passage, "they ain't." All max wedges came with a huge barely streetable cam and a short "cross ram" manifold. The "longtube" ram manifolds where you can see the individual runners, and which have a rubber crossover are NOT "max" wedges.

Some info here

http://racehemi.maxwedge.com/topics/heads.php

Below is NOT "max" wedge

Likeness (whether correct or not) of a factory 413 "max wedge" Huge cam, huge head ports, cross ram, two Carters, and gigantic swooping exhaust manifolds

426 max with "even better" exhaust