That thing gotta a Hemi

https://cimg6.ibsrv.net/gimg/www.off...f27c7960c2.jpg
2 408 cubic inch 1,100 hp Keith Black hemi's & 2, #2 Mercruiser O.D.'s.

Mountie do you recall the ob version such as the post in pic 2254?

Apologies..... what is " pic 2254" ?? ( Don't know what photo you are asking about)......

All's I can guess...... The Aronow U19 used # 2 Merc drives. ( If we used Arnesons, we would have dominated the series..., The #2 drives..... we ate them up like potato chips.

I'm referring to the small model pictured above ......In post #2254

Ahhh. No clue.

Small displacement for KB Hemi's, was there a cu in restriction ?

I never heard of any restrictions to engines. All's I know, Keith Black said, the application, best for the boat was his 'Sprint car' style engine package.
A high revving 'flat crank' set-up. ( flat crank : The pistons fired "1-3-5-7 / 2-4-6-8 ".... One bank fired then other bank fired / 'left-side / right-side"....
( If I described that correctly ? ) It sounded like a 'bee-hive' at full power. Very reliable. The Mercruiser drives broke often. ( frustrating for me, since we installed the Hemi's at Howard Arneson's shop.... removing the ' low torque' Cosworths. As I was looking at Surface Drives nearby !! ( Maybe, there wasn't a way to send the power to the drives, for our 'special' set-up, at the time?? Especially being out on the road..... to service it....

Cool information, small cubes makes sense now put in a sprint car, any pics of one of the cars or the engines idling at the dock ?

I don't know if I have a closer view of the engines, better than the one I posted earlier, but I'll look in my stack of photos ( no audio.... considered, it was 1980)

I still have negatives from back then...... some from one of those little - film cameras...... I should try to get them re-printed.....

I know, Keith's Son, Kenny Black had his Dad's album of the project...... I can try to contact him, if possible.....