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426 wedge

Nate S said:
A couple things to have in mind, mostly if you’re going for a stock rebuild vs higher performance / custom stuff.

426W had 750g pistons, not 832g like a 440. Crank is balanced differently for this. You’ll want to re-balance if you use a 440 crank or 440 weight pistons.

426W pistons are unobtanium in non-custom world. You can get stock cast piston clones for a 413 though from rebuilder’s choice at .060 and .080 over which can work if your bore is decent. You’ll get factory compression ratio with those.
Click to expand...
Do they carry 426 wedge ones to or just 413 ones?
 
Challenger340 said:
Yes I believe so as the JE 213455 is for a 4.350" Bore..... which is a .030" overbore 440..... or .100" overbore 426W.
Click to expand...
Oh ok you can still get those pistons since there a 440 piston
 
Nate S said:
A couple things to have in mind, mostly if you’re going for a stock rebuild vs higher performance / custom stuff.

426W had 750g pistons, not 832g like a 440. Crank is balanced differently for this. You’ll want to re-balance if you use a 440 crank or 440 weight pistons.
Click to expand...
These days, most aftermarket Piston offerings for 440's from JE/SRP, Wiseco/Pro-Tru, ICON, etc., etc. are all well below 750 grams and require Crank re-Balancing anyways ?

The only Forged 440 Piston I know of(not saying there aren't others), that is NOT in the High 800's to low 900's Grams with Pin.... and much lighter than even the 413/426 factory Pistons of old ?
is the L2355F at 1095 Grams with Pin where the Piston itself is 877 Grams ?

Just me, IMO.... always Balance the Engine is just good practice
 
Challenger340 said:
These days, most aftermarket Piston offerings for 440's from JE/SRP, Wiseco/Pro-Tru, ICON, etc., etc. are all well below 750 grams and require Crank re-Balancing anyways ?

The only Forged 440 Piston I know of(not saying there aren't others), that is NOT in the High 800's to low 900's Grams with Pin.... and much lighter than even the 413/426 factory Pistons of old ?
is the L2355F at 1095 Grams with Pin where the Piston itself is 877 Grams ?

Just me, IMO.... always Balance the Engine is just good practice
Click to expand...
I think a lot of it is intent. I’ve found factory balancing to be quite sufficient for rebuilds and stockish stuff. If that’s the plan it’s best to pay attention, if not, as you point out, have it balanced.
 
You are not going to find an “off the shelf” piston for a 426 Wedge. They are strictly custom made and as such they are expensive.
 
Don't think those pistons will work,426
MCODECUDA said:
You are not going to find an “off the shelf” piston for a 426 Wedge. They are strictly custom made and as such they are expensive.
Click to expand...
Yah your right on that.maybe someone on here might have some for sale or want to sale.usually cheaper if a owner has some l seen then a company.
 
Last edited:
Nice find on those pistons!

Its OK talking 'machine-shop talk' if you have a machine shop or some local SHOP, who knows Mopar?
I've balanced hundreds of cranks in my 'machine shop' days and they are mostly wrong!
Factory balance was a guesstimation for a set rotating mass.
One in ten was probably/possibly near and most were not!

The reason no one builds 413's and 426's as they are well outta fashion and NO parts.
If you are a serious engine builder then get a stroker kit from '440 Source', the rest is easy.
Start 'mix and matching' 50+ year old parts and it will be a NIGHTMARE!!!

ps I've been looking for a 426 block for my 1964 D200 HPP clone and could I find one, NO!
 
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Lookin for some non alcohol race fuel ones
 
Nate S said:
Here are some on ebay... I’d turn them down to .030 over. That would still be cheaper than buying new.
https://www.ebay.com/itm/426-MOPAR-...-/154391030721?_trksid=p2349624.m46890.l49292
https://www.ebay.com/itm/426-MOPAR-...-/154391030721?_trksid=p2349624.m46890.l49292
Click to expand...

Those aren't going to work either ?
* .990" Pins meaning you either have to Pay to O/S the Pin Bores for the Mopar 1.094" Pins or BUY Rods with .990" Pins ? $$$$
* You also have to PAY to get the Scuff Buttons sized $$$$
Not to mention...
* That's NOT "anodizing.... some meathead has Glass Beaded the Ring Lands !

Those are "fresh' Pistons alright.... Freshly F*CKED !
WALK AWAY !
 
If l can't find any reasonable l might just bore it into a 440.put a standard bore 440 pistons in it.
 
muscle72 said:
If l can't find any reasonable l might just bore it into a 440.put a standard bore 440 pistons in it.
Click to expand...
4.32 is probably too far. Could get some standard bore 440 pistons turned though. Then bore the 426 .040 or .050.
 
That is boring it .070" . That's quite a ways. Better do sonic test first to see if there is core shift.
 
Dave6T4 said:
That is boring it .070" . That's quite a ways. Better do sonic test first to see if there is core shift.
Click to expand...
I heard doin a sonic test first,if l go that route with it
 
This turning pistons down is a first for me. Like in had not heard of it before. But just a thought do hemi pistons have enough dome to just cut them to the preferred height?
 
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