Looks like this has become a new project of mine.
I had a couple of people contact me over on Facebook requesting me to do a large main small block stroker crank that will drop right into the DX block.. It seems this is moving forward. Price will be about the same as the gas based Stroker cranks, around $1850.00. These will be a great alternative to using the 50 year old 400/425 crank or buying a much more expensive custom billet at a cost of over 3k.
Let me know if anyone may be interested as these will take 4-5 months to get.

 

Mark, what kind of stroke are you talking about? I'm likely interested.

 

Mark do you need a deposit? You are talking a 4.O stroke right?

 

Yes 4.00” same as my gas journal one. I have to keep the mods to a minimum otherwise they have to do a new drawing etc.
Mains, seal surface, flange, and snout are all Olds dimensions. Rod journals are SBC/LS so there’s a ton of rod choices. I currently sell a crank, rod and piston package that yields about 9.8-10.0:1 with bb or aftermarket heads. And yes I need a majority deposit upfront as these are a deviation from what I’ve been doing already.
Let me know Joe. Thanks.

 

Mark will this crank work in a d block or just a dx block thanks

 

Wow really d and DX same journals for mains. lifter bore is different d .842 DX .921 So yes would be the answer.
Sorry Mark just my filter is broke. Also sorry to OP if you think I am out of line.

 

As Neeley said, yes it’ll fit in both blocks.

 

I thought the crank would work.

I have wasted a lot of money by not asking enough questions Glad for the help

 

Man ask anything anytime I bet you will get info . I was having a very very bad day i shouldn't even posted. Again glad you posted back.

 

so, here is a question for those in the know.....

what are the exact differences between the D and DX blocks and Pros and Cons of both?

 

D block is thicker in the web area than any gas block. Also has .842 lifter bores.
DX has the thickest main webbing of any Olds block. Lifter bores are .921. However all cyl thickness is about the same as none are siamesed.

 

are these lifters available in both sizes?Or is it common to machine the lifter bores for a more common size?

 

.842 is the std Olds size.

 

Can you still get quality aftermarket .921 hydraulic Roller lifters?

 

ok didnt know that .so the the d block got the standard .842 .so i guess my question is are the .921 lifters readily available ?

 

Yes both flat tappets and rollers. However the rollers are just std issue, nothing special.