Monty, if you don't mind, who did you buy the shortblocks from ? and how much were they ?

Monty, if you're currently running stock BW Velvet Drive transmissions you're going to need to upgrade to something like the Huber version as the stock BW units aren't built to handle the kinds of horsepower numbers you're looking at.

ttt

Good Gosh those are some tq monsters....666 ft lbs at 2500...yeouch. N/A and pretty conservative build up......Nice motors!!

Thanks for the information. Looks like there are severaln other healthy example already out there as well. Sounds like my expectations are in line with what you other guys have.

dlbCheckmate, I ordered the blocks and heads through Fast Times Motorworks in Morton Grove, IL. That's where I have been getting my machine work done for the past 5-6 years. They're mostly known for NMCA/NSCA and NMRA racing engines, but they do quite a few custom boat engines as well. I can usually get the same prices through them that you can get through Jeg's or Summit. $1999 for each block.

Woof, nice figures out of these motors. Any idea what Stainless Marine manifolds would do to these numbers??

Scott B

I'm hoping the Stainless Marine manifolds and risers won't hurt too much. If so, I'd guess moreso towards the upper rpm range so maybe the impact won't be within the normal operating range. As you can tell, I'm emphasizing midrange torque over upper end hp since it's a pretty heavy (8000#+) non-stepped hull.

My understanding is the SSM's do falter above 5200. Like you, I am building a low rpm torquey motor , so I hope we are right! :)

Scott B

Monty,
I had a buddy that used to work for Fastimes. He then moved to Sterling, then Katech, and now I think he is still at Earnhart enterprises (I forgot the real name, not much of a Nascar guy)
Man they have some seriously fast small tired street cars. I remember years ago a 64-65 El camino with a big dent in the quarter panel that ran 9:50's, it was a total sleeper.

Monty are you going to the C.O.P.S. run this weekend ? I'll show you mine if you show me yours ! Mistress that is.