You no what they say, its all about the "cubic dollar".

 

The bore spacing on these engines is 4.40 That would leave .150 of material between each cylinder bore. Good luck getting a head gasket to seal or the cylinder walls to stay even remotely round when you lean on it. Who exactly is coming out with a block that will support that big of a bore on the stock bore center?

 

I love all the bigger stuff coming out. Will be nice to see some LSx naturally aspirated engines that can be competitive in the All Motor classes out there.

 

96 Comp,
Thank you for presenting the case of 4.4 bore centers. One of the reasons we built this block was to correct deficiencies in the OE sleeve / block situation, given that dimension parameter.
Make big holes in it and you've defeated the purpose and have the same problems you tried to correct.
Surely there are bright guys out there who will go bigger than we suggest, but we do not have a test-to-destruction program. As I've said too often before, "we're just trying to get the parts out there."

 

Very nice work and the casting appears to be very clean/precise. We especially like the bank-to-bank crankcase pressure equalization portholes you've implemented in the engine valley. Nice touch indeed.


Best Regards,
DTE

 

so the largest you guys recommend is 4.125 then? you can take a wet sleeved LSX block out to 4.200 and a dry sleeved to 4.18, safely. NA anyway.

so we're going to have to wait for a good machinist to get their hands on one instead of hearing it from the manufacturer?

 

even if he knew it was possible to go out to 4.xxx.... he cant say it.

think about it. if the manufacturer says it can go out so far, and then someone pours several thousand dollars into the motor... and its ruined because thats just too far.. then waht?

and if he says it, its not just one person trying it.. its alot of people.


no, he has to keep it conservative... once more blocks start rolling out, someone else will push it.. im sure... but dont expect World to outright say a higher max number.

 

Is the 6th cylinder head bolt hole in between the lifters? Would be nice to see a 4.200" bore

Keith

 

Seems to me that they are engineering the block to handle just about anything in stock form, after all, that was the goal of designing this block...not to see how far they can push the bore size. Don't beat them up too much.

It prob. will go 4.200" but im sure world doesn't want to put the development resources(and im not going to put my money into finding out) towards that if you guys are already going to try it anyway. I am sure World has plenty of engineering experience to say that the 4.125 bore is stout, and still stout after a couple of clean up bore jobs(safety factor). Engineering, development and testing time costs money...how much you want to pay for a block?

 

DTE,
Thanks for the kind words. It is a beautiful piece in person, just about the best aluminum casting we've ever done.
383ss,
"so we're going to have to wait for a good machinist to get their hands on one instead of hearing it from the manufacturer?"
Excuse me while I go out to the shop with a print of your post and show it to the blacksmiths running our four Rottlers. They might be dismayed to learn of your low opinion of their skills and confused by the fact that we build and test 400 engines per year using parts MANUFACTURED by us and machined by THEM-which are powerful and trouble-free.
Please enlighten us further from the depth of your experience on how to correctly conduct a project of the Warhawk scope (plus the 2 other major mfg. projects arriving in the next six months), in an effort to benefit and provide an alternative for enthusiasts in the LS aftermarket.
In case you missed it: I didn't say WE or ONE can't bore our stuff bigger, I said we HAVEN'T YET bored Warhawk bigger. We RECOMMEND 4.125 because it was the design parameter. Our focus is to bring to the market parts that were a huge suprise at last years' SEMA show and badly delayed and long-overdue, for a customer base that has been clamoring for them throughout.The LS public has been remarkably patient, loyal and forgiving of our shitting the bed a few times and we're busting hump to catch up and fly right.
So that's why we haven't had time to try 4.200 or the flavor-of-the-week in bore sizes. 4.125 will work with our 2.200 valves and 255 runners NOW but that's probably not only where we'll be a year from now. We'll make displacement with stroke when get start to get 9.8 blocks.
We'll do what we can WHEN we can. There are many pros that can do bigger and better things with our parts once we get them out. The main reason is: they don't have to manufacture the parts first.
Perhaps you can show us the way?
ls 1290,
Yes, and the 5th is at 6 o'clock from that on the block boss.

 

I know there's a bit of a backorder on these right now. Do you think you'll be finished shipping the current backorders by the end of the year? Just curious if I order one, say this week or next, would I have it by Jan or Feb?

 

Sooooo....prettyyy.

 

Awesome piece of work guys. Will this be at SEMA so I can drool over it in person? lol

 

Beautiful stuff, I wouldn't mind having one with a nice low compression for a couple of hairdryers.

 

280Z,
These are the 9.24's and we should ship quantity by early Dec.
Nine,
This is what you'll see at SEMA:

 

whooooaaa, EASY!!

I wasn't trying to offend you or say you don't have excellent employees. just trying to get an answer to my question. I MEANT that if you weren't going to test or have that info now, that somebody could go to a good machinist to get their opinion on how far you could take it out an be safe, NOT meaning you don't have excellent people there!

sorry!

 

Please tell me that a new World Products high rise single plane will get to swing between the unpopulated top posts (over top of the lifter valley) of your display assembly by the time it gets to the PRI show this year.

 

383 ss,
Ah, we understand each other more clearly now. Glad you say we have excellent people 'cause we really do. No apology necessary, just a misunderstanding.
96 Comp,
Alas, not PRI this year but I think there's four (4150, 4500 in both deck hgts) started in Warhawk 1's computer sparky...

 

There he goes, again throwing my name around...

 

i think he said something about mailing me a copy of your hard drive too....