426 Hemi Replacement Block?
 

I was told by NHRA Tech today that I have to run an original block in Super Stock, that there is no replacement. My question is though, aren't the AH guys running new Mopar blocks?

I am (was?) building a '66 Coronet for SS/EA, and the blocks were the same as the '68 blocks, so why can't I run a new block?

Re: 426 Hemi Replacement Block?
 

I believe that the "new" hemi block has siamesed walls and extra material to make the block more rigid---cuz of this ya get something like 25 more HP something that will not happen with a 1966 block--I think that is NHRAs reasoning behind their ruling---NOT POSITIVE ONLY MY PERSONAL OPINION!!!! Keep trying ya might get it approved but if my reasoning is correct yer not gonna get it passed/aproved---Comp

Re: 426 Hemi Replacement Block?
 

I hope thats not true, If it is then the short block I bought from Dvorak is completely worthless for my stocker.

Thanks Dan, You suck!

Re: 426 Hemi Replacement Block?
 

Wow!! Harsh words,,,hanging a man before the verdict comes in. I've always thought better of you Phillip,,, apparently I misjudged you.
Danny Durham

Re: 426 Hemi Replacement Block?
 

From what I have heard is that World Products makes the Hemis replacement blocks for Mopar and they have cast some Hemi short deck blocks (383 deck hight) that the Hemi Shoot out cars are using. Anybody heard about this???

Re: 426 Hemi Replacement Block?
 

Danny,
Dvorak sent me a short block with illegal pistons, A china made crank and over lenght rods. If I cant use the block now it's a complete screw job on his part. Well maybe I can use the bearings.
On top of that he told me to go ahead and use it his illegal junk since the stock street hemi short block I'm running now isn't super fast. It's all on the internet if you care to read it.

Still think you misjudged me?

So what is the verdict on these blocks? I've been planning on buying the parts to put a good legal short block together using the block Dan sent me but this may end those plans

Re: 426 Hemi Replacement Block?
 

See,,there IS more to the story,,We were talking about blocks, not the internals,,but I'd deffinately say you've got a legal bitch going here.
Are you going to Boise this weekend? If so, I'll look you up. Take care.
Danny Durham

Re: 426 Hemi Replacement Block?
 

It's not worth trying to sue him. I'll let Karma take care of him for me, He's already lost his wife and his leg so it seems to be working.

We decided to stay home instead traveling to Boise. I'm spending money on the Hemi instead of buying all that diesel to get out there. Hopefully it likes the low 1st gear transmission with all those aluminum parts.

Re: 426 Hemi Replacement Block?
 

Here's a couple of photos Charlie Westcott Jr. posted on Moparts earlier this year of the new Mopar blocks NHRA told me no one is running.

http://board.moparts.org/ubbthreads/..._5321759_n.jpg

http://board.moparts.org/ubbthreads/..._1815750_n.jpg

Re: 426 Hemi Replacement Block?
 

Can't tell if 383 or 426 deck height?