Looking forward to the results.

Any more pictures/details on the oiling system?

Awesome engine!

If Best Machine built it I'm betting they came up with the cam grind. [/quote
I have had them do a motor and had the cam for it elsewhere... which I why I ask
In my case I took Dwaynes recommendation

Nothing special in the oiling system, mostly off the shelf parts. Aviaid billet pan and a Peterson R4 pump. Here is a link to the pan: https://www.aviaid.com/shopsite_sc/store/html/mopar-oilpans.htm

Did the heads get 2.25” intake valves installed?

Yes, heads were reworked to match this shortblock. Chambers opened up for the 4.50 bore size, 2.25 valves, etc.

It seems like a small head for what otherwise seems a pretty aggressive setup, any reason why? S/F....Ken M

It is what the customer wanted to do. It makes sense based on the customer's plan for his car.

I've not seen a duration split like that on a Big block, it's pretty common on high HP small blocks though.

Will be interesting to see the results

Some LS engines come from the factory with 20 degrees more exhaust duration. I don't know why they do that but they do. I think the LS7 engine has about 20 degrees more duration on the exhaust than on the intake and that is a production engine right off the showroom floor.

When is dyno day?

I have run exhaust splits that far many times on a BB. We have run as much as 16 degrees more on the exhaust side. Be screwing a new Predator together here soon and based on past experience it will have at least a 10 degree split(cam is the only thing we have not decided on yet). Expecting to to make 1130-40 with a very bracket friendly single 4 combo for stop racing.

Any other guesses?
For the record, using those small headers I am subtracting 30hp. 890 HP with the peak below 7,000 rpm.

I'll guess 904hp. Peak around 6700.

Indys suggestion to me for a 572-13 head on 550 cubes was 285/305/112 in at 108. Considering those heads come with a 1.88 exhaust valve, i was surprised . They also said max lift of . 825. I will make due with my 284/296/114 with . 868 gross intake lift. Considering lash etc i will be below . 848 net lift intake.

Sounds like a beast.

PipeMax says 904 hp too.

We made a few pulls today. It made 870 power at 6800 and 760 torque at 5400. Found a few items to work on. Not sure if we'll put it back on the dyno or just make the changes and put it in the car. Depends on what the owner wants to do. No doubt in my mind that it would easily make 900 hp with some minor changes.

Used the clear valve cover to verify top end oiling. Everything looked great. This engine uses pushrod oiling with the T&D rocker arms. The engine ran great, no leaks and only a tiny bit of aluminum trash in the pre-filter. We cleaned the filter after each dyno pull and by the third pull the filter was spotless.

very nice