426 Wedge blocks

[sxott Spencer]

Are these 426 blocks hard to come up with??
AAQA 3R casting 2406730-1

 

[1967coronet440]

Need pics and additional info to determine if it is a max wedge block. I think street wedge and max wedge both used same casting numbers. And all had the AAQA stamped. If there's no heads on it I think the tops of the cylinders had been clearanced for valves, alsonshould have a unique stamping on the ID pad..

 

[PurpleBeeper]

Need pics and additional info to determine if it is a max wedge block. I think street wedge and max wedge both used same casting numbers. And all had the AAQA stamped. If there's no heads on it I think the tops of the cylinders had been clearanced for valves, alsonshould have a unique stamping on the ID pad..

I'm not Max Wedge expert, but I believe 1967Coronet440 is right about the block being clearance for Max Wedge valves. I think that machining is right at the top of the cylinder bore. Don't quote me on this.

 

[Budnicks]

welcome to FBBO from NorCal

maybe post the question in the general discussion forum
or 1962-1965 Mopar specific forums here,
this is just the welcome wagon, not as much viewership
as others, it's just mainly just intended for intros &
sharing a couple photos or backgrounds etc.
It's not intended as a Q&A or tech forum section really...

also try http://www.mymopar.com/index.php?pid=31
many different tools there to decipher & decode what you have...

http://www.allpar.com/mopar.html
is a great source for Info/Tech stuff too

 

[1967coronet440]

I'm not Max Wedge expert, but I believe 1967Coronet440 is right about the block being clearance for Max Wedge valves. I think that machining is right at the top of the cylinder bore. Don't quote me on this.

I believe they were often referred to as "eyebrows" also had special fonts used on some casting numbers? There's wasn't much to differentiate the 2 you really had to know what to look for

 

[mr. b]

welcome to FBBO from Pa

 

[Car Nut]

aboard!

 

[Grady Cain]

Welcome from NW CT...

 

[68sprtsat383]

Welcome

 

[Ladysmith Bob]

Are these 426 blocks hard to come up with??
AAQA 3R casting 2406730-1

Here's a picture of my 426 block and rods. The exhaust valves were 1.88 " so the blocks were notched for clearance. Also some info from Greg Lane.

 

[6t4polara]

Define hard to come by and post a picture of the pad.

 

[lewtot184]

drag race blocks had a notch at the top of the cylinder for the exhaust valve. no notch=street block. also, the drag race blocks used 1/2" pick-ups.

 

[sxott Spencer]

Need pics and additional info to determine if it is a max wedge block. I think street wedge and max wedge both used same casting numbers. And all had the AAQA stamped. If there's no heads on it I think the tops of the cylinders had been clearanced for valves, alsonshould have a unique stamping on the ID pad..

I have since determined that these are marine 426 wedge engines, so not a max wedge but the same stuff without valve notches. Complete short blocks for sale