Buy them from one of the other new owners now, Tim Banning at FHO will be my choice
I bought my 4.500 aluminum street wedge block from him several years ago back when you had to get in the waiting line to own one back before all the production issues were resolved I had him do all the finish machine work including bushing the lifter bores, finish the main align hone and all the rest to get it to stock blue print specs.
I'll buy more from him now

My dumb ass read that bore size wrong. Sorry, yes, it's a 4.490. One thing that BM said about the block was that the liners stick out above the deck. Are these to be machined flush with the deck or are they intended to be assembled this way?

I was intending to use Best Machine for purchase and machining, but i will call FHO as well. Thanks

I was looking over on Scott Browns site and he has the stage 5 replacement heads assembled and complete for about $4700/pr. I honestly don't know what head would be needed on a 572 Hemi with between 11:1 and 12:1 compression to make roughly 900hp street/strip deal. That replacement Stage 5 head it advertised at flowing a tad over 400cfm.

Ask Todd Marsh. He can tell you all about the status.

I ordered a KB block Dec 2018. I emailed Darren Beale March 2020 asking why I didn't have a block.
He called me twice from Australia assuring me I would have a block soon.
I spoke to Chris at KB in Newport Beach sometime last year and he said he was going to make sure Darren got in contact with me.
More hot air.

Ken Black lied to me for a year before he stopped answering the phone. He's starting to look like a pretty good guy.

I cancelled the order Feb this year.

The first KB street hemi block I assembled had the sleeves to high and I had to have KB fix them.
Make sure you get the specs. on the sleeve heights and check them as soon as you get the block correct if needed
I had to get a special set of head gaskets made for that motor also due to it being a street Hemi block, not a race hemi block
Another reason you will see me call them Hemiriod motors

The Sleeves should be .002" above the deck roughly not flush.

When new, my BMP block (4.490 HEMI) had the sleeves 0.002-0.003" over the deck. The decks were at 10.730" new measured with a Rottler F79a and the pistons were too much low in the hole. Since then the deck was machined @ 10.720, the sleeves are still up over the deck by 0.0005-0.001" after using a torque plate to set them. I had a message from Bill, there is no problem using the sleeves flush with the block.

Cool, I don't understand why, but if it's ok i'm good with that. What stroke, rod length and compression height did you use in that combo? I'm looking at using 4.500 stroke, 7.100 rod and a CH of 1.350 or 1.360.

Hi Dave, mine is the "small" 528", it has a 4.15" stroke with 6.86" rod and CH of 1.765. I wanted to use the internal oil pickup and Chrysler bearing sizes for the crankshaft.

I see, and that gave you what compression with what cc chamber?

Dave,

What is your goal with it? Doing a resto mod SS look a like, or pro-streeter? What Hp? Anything from a 528 on up can make +800hp all depending how much and where you spend it...These things can be an endless money drain if you choose mis-matched parts. ...

My plan is a pro street deal. Maybe run it down the track once just to see, but not a definite etched in stone hp goal, but 900ish would be nice. I'm thinking 11.5:1 or 12 572 using the stage 5 replacement heads which are cnc ported and flow just over 400cfm. Not sure where that combo will land me, but i think its close to my goal. Looking over on Arruzza's site, he has what i want. Looks like his Ross pistons might fit the combo well . I'm really liking the Bill Mitchell block at this point as well, haven't found any real negatives about it yet. Everything still on paper as i'm learning.

I am using the Stage V replacement heads with CNC by Modern Cylinder Head. also using the Stage V rockers . My block is a World Aluminum . I'm using CP pistons for 10.5 -1 It's pretty similar combo to what you have described, just less compression.

Mark

I'm using the Edelbrock Victor heads, I had to machine them because the guides and seats were not concentric from the box. They have now around 175cc since the valve job (valve sink). I am in process of milling them to have 172-173cc and regain the approx. 10.5 with the FelPro head gasket.
I will cc's them again to be sure.

Dave my plan is very similar to yours. My goal is 800-850 on pump fuel with an iron mopar block 572 ci. The only component I have is the 4.5 bore block. Purchased a couple years ago. We chose to go iron because this will be mainly street driven and at the time blocks were even harder to get a hold of. I'm leaning towards stage 5 heads, rockers, and their dual quad intake, solid roller cam (unknown specs currently). I would like to run as much compression as possible but leery of anything over 11:1. Hemis are supposed to tolerate more compression but sill a gamble with any pump fuel. Have you decided who your going to purchase the heads from? I think there are to many great hemi builders out there to pick from... Hahaha. Also the super prepped Edelbrock heads from Hughes seem like a good bargain with pretty impressive flow numbers. But just like everything currently they are out of stock and uncertain of availability. Not trying to hijack your post but very interested in your choice of parts.

Still looking, but it looks like i will order the block from Bill Mitchell and the heads from either Arruzza or Scott Brown. I still have to call Arruzza and get a price. He claims his Hemi pistons(Ross) have been worked out with help from Herb Mccandless to have the perfect dome shape for making power. Scott has those heads cnc ported with .800" springs/stainless valves for $4700/pr.

Got a link to Arruzzas site plus FHO

http://www.arruzzahighperformance.com/Parts/Parts.html