Stop in for a cup of coffee

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I love that North Korean News lady....she has a way of telling the news. And no I do not want to hit it.
 

I helped build about three of these back in the day, fun to build and when it gets down to int work its fun to say the least
 
Closest I ever came to something like that was a 66 Monaco wagon I welded the rear doors closed and ran the back window to the front door post, a lot of work to say the least could not even imagine stretching a car!
 
All that power in a 3000 lb car...

A 1962 Plymouth Savoy with a 413 Max Wedge known as the “Melrose Missile” became the first factory stock car to break into the 11 second range in July of 1962. The Missile ran a verified ¼-mile time of 11.93 seconds.

The 413 Max Wedge was quite different from an ordinary 413. In particular, the Max Wedge used different heads with 25% larger ports and bigger valves. You also got a special high-lift 300-degree camshaft, double valvesprings, a special intake manifold with 15-inch runners, and twin Carter AFB 650cfm carbs. Inside, the engine had forged connecting rods, 11:1 or 13.5:1 forged pistons, and a baffled oil pan. In Dodge cars, this was called a Ram-Charger 413, and Plymouth called it a Super Stock 413.
I have a 62 max wedge 413 block. Just a bare block complete with all the markings. But I need the top end about 5000 in machining to big it back to life.
 
So the later BB heads were not as good as the MW ones?

Good morning, btw.
nope, not even close.

Was the block different, too? Are the heads interchangeable?

The blocks are not different as far as I know and you can put max wedge heads on any RB engine... The cross rams were matched ports for the max wedge heads but were made for the RB block vs the shorter B block... They will bolt onto a B block, but the intake ports won't match up with a B engine intake... The RB intake will not fit the shorter/narrower B engine..

The max wedge heads, intake, and exhaust manifolds were tuned to peak at 6500 RPM... They got 100% volumetric efficiency at 6500 RPM.... Before computers, back in the days of calculations and flow bench testing... It's hard to to that with today's technology. much less early 60's tech... Very impressive...

Actually the max wedge blocks ARE different. the 413 max wedge block required cylinder notching to allow clearance for the much bigger valves of the Max Wedge heads. The blocks were also cast at a special foundry with tighter tolerances in order to ensure strength. Every max wedge block was specifically checked to ensure no voids in the metal happened during casting. If they were, the blocks were sent to be scrapped. Though some, if the voids or other flaws were minor enough, were sent to be industrial engines. For a 413 to be a max wedge block, it must have 3 things, the cylinder notching, AAQA casting letters on the block exterior, the ID pad will be stamped 413 HP in large, bond letters. You cannot put max wedge heads on a standard 413 block unless you have a machine shop correctly notch the bores. The valves WILL hit otherwise.

The 426 max wedge block differs just a little bit from the regular 426 wedge block in that the Max wedge block had extra strengthening ribs cast in the block. Whats interesting is that the block was so strong, they later took the 426 Max Wedge Block and used it as the core block for the 426 Hemi. Course water passages, oil passages and bolt holes etc were different on the hemi block, but they all started as the same core.

Also one last note, not only did the max wedge get forged components but the forged cranks used called for a slightly higher nickle content in the max wedge cranks. Thought process was the nickle would all for a higher tensile psi than a standard forged RB crank.
 
Dam yhats too much in machining, cant find one better?
original 413 max wedge blocks are even rarer than hemi blocks...... I watched one on evil bay go for 3500 in the same shape as mine. Mine is virgin block, but the problem is it was left taken apart, exposed to the elements in a dirt floor barn i pulled it from. It's VERY rusty. It'd have to be sonic checked, sleeved, line honed, water and oil passages extruded honed, decked, lifter bores machined. and then since the sleeves would take the notches out, i'd have to have the sleeves notched. 1500 alone to do that.
 
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