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-   -   sbc single blackhawk y2k (https://www.offshoreonly.com/forums/superboat/239243-sbc-single-blackhawk-y2k.html)

younger 09-18-2010 07:57 PM

The intresting thing is that this sb produces some good torque numbers 540 ftlb. This is not the 400 out of pops station wagon. World block 4.125 bore, Mahle forged slugs on 6" H-beam rods, swinging on a Callies 3.875" stroke crank, internally balanced. Full Crane roller valve train, with Edellbrock rpm heads rpm air gap intake, topped with BG 850 dp. Exhaust is Stainless Marine manifolds with dry rises out the back. The way it runs makes alot of bb's envious. This is the combo that I have and need to know how well it would work in a y2k. If it could run 75 plus and the boat work as well as people have stated. It would make it to my list of things to do.

FX10 09-19-2010 10:20 AM


Originally Posted by OCCJoe (Post 3211042)
Really !!! Let's see a picture of this Y2K in stock ....

It's all white . You can have black or white wind screens. a white engine hatch or a hatch like H2O scene's. It's under covers right now.

FX10 09-19-2010 10:25 AM


Originally Posted by younger (Post 3211331)
The intresting thing is that this sb produces some good torque numbers 540 ftlb. This is not the 400 out of pops station wagon. World block 4.125 bore, Mahle forged slugs on 6" H-beam rods, swinging on a Callies 3.875" stroke crank, internally balanced. Full Crane roller valve train, with Edellbrock rpm heads rpm air gap intake, topped with BG 850 dp. Exhaust is Stainless Marine manifolds with dry rises out the back. The way it runs makes alot of bb's envious. This is the combo that I have and need to know how well it would work in a y2k. If it could run 75 plus and the boat work as well as people have stated. It would make it to my list of things to do.

Have you given Coen a call @ Superboat. If not 631-226-1761. Don't be discouraged by him. He's know as Mr. You don't want to do thaaaaat.

Superbabi 09-19-2010 11:10 AM


Originally Posted by dba900 (Post 3210554)
Hmm, so with a lighter small-block and a surface drive you might even see 80 on a good day? Is that overly optimistic?

I would love to see some one dial in a Surface Drive on a Y2K. If not the BlackHawk what type ???:grinser010:

Pure Energy 09-19-2010 12:29 PM


Originally Posted by Superbabi (Post 3211618)
I would love to see some one dial in a Surface Drive on a Y2K. If not the BlackHawk what type ???:grinser010:

I would love to see you bolt on an Imco SCX and run that motor of yours the way it is supposed to be run!!!:drink:

AIR TIME 09-19-2010 12:48 PM


Originally Posted by Airpacker (Post 3210234)
There are no parts for a BH drive that cant be bought. The only part besides the case thats different than a Bravo 3 is the vertical shaft and Max Machine Works makes those. As for the drive itself, when used on the right hull, it flat out works. I bolted one on my 25 Daytona and picked up 8 mph with no other changes. It also out lasted Bravo X drives by a 4 to 1 margin on upper gear sets on my boat.
I replaced the BH with an SCX/SC only because I added 400hp to the mix or it would still be on my boat.


If you're interested, I have a just freshened BH set up complete with everything you need to bolt it on including labbed 31 props.
Its collecting dust in my shop so if someone wants it, its for sale or it waits for the right 16 Donzi for the wife to come along.

what about props? bob got rid of his cause on the vees it seem to work on the 22 donzi cause of the rounded keel, heard they did good on sm cats, but heard efi was needed cause when you shifted it in gear it would drop the rpms to low on carb motors. to me if it was so good merc would of kept it around. a xr with a shortie or a arneson #6 would be a nice piece plus you could set it up with a 6 propshaft or bravo shaft now. we now the y2k works well with b1 drive and props are easy to get, your right about the b3 drive I forgot about that. the turbine boat seems to be having handling troubles with that funky drive they went with thats why I caution a drive like the bh. my b1 drive had up to 650hp running through it from 95 to 05 and it was a gen 1 the weakest b1 made never had a problem with it only changed it cause a 2'' shortie didn't fit so I bought a 01 upper and a cracked lower 03 swapped the guts it ran nice picked up 8mph maybe more but I ran out of prop at 6000rpm also changed the carb but I bet it was worth another 2 or 3 mph. well good luck with the sm block

AIR TIME 09-19-2010 12:54 PM


Originally Posted by Pure Energy (Post 3211665)
I would love to see you bolt on an Imco SCX and run that motor of yours the way it is supposed to be run!!!:drink:

or a konrad like the black y2k:coolcowboy:, hope to be in 2 weeks after the new gas tank goes in to see how the konrad ace holds up to 1114hp:party-smiley-004: I am going in this yr if its snowing out in nov, but hope to have tank in my hands in a week and a half then two weeks to put it all back together I hope.

AIR TIME 09-19-2010 12:57 PM

what hp will the sm block make at what rpm same with tq ?

Pure Energy 09-19-2010 01:07 PM


Originally Posted by AIR TIME (Post 3211685)
or a konrad like the black y2k:coolcowboy:,.

I have "heard" that the Konrad hits a "wall" at around 85 mph. I have no personal experience with this, so I would like to know if it is true or not.

Superbabi 09-19-2010 01:57 PM


Originally Posted by Pure Energy (Post 3211665)
I would love to see you bolt on an Imco SCX and run that motor of yours the way it is supposed to be run!!!:drink:

Thats the way I save on gas, never more than 2500-3000 RPM'S !!! LOL LOL :grinser010:


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