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Aluminum Block Cylinder Support
https://www.slantsix.org/forum/viewtopic.php?t=65591		 Page 4 of 4
Author:  Dart270 [ Mon Dec 14, 2020 3:54 am ]
Post subject:  Re: Aluminum Block Cylinder Support
So, we just call Darton and tell them what we want to do and for $750-1500 they would sleeve it and machine it?

Thanks,

Lou
Author:  CNC-Dude [ Mon Dec 14, 2020 2:46 pm ]
Post subject:  Re: Aluminum Block Cylinder Support
Lou, they just manufacture the sleeves. You would have to provide a CAD drawing of what you want them to make. Any local competent machine shop should be able to handle the rest for you. I can throw a 3D model of a sleeve I am describing just so everyone can have a visual if that is ok.
Author:  CNC-Dude [ Mon Dec 14, 2020 3:15 pm ]
Post subject:  Re: Aluminum Block Cylinder Support
[/url][url=https://postimg.cc/8fCdTTPw]Image

The cylinder wall thickness has been increased to almost 1/4" in the water jacket area....
[/[url=https://postimg.cc/MvN082kb]Image
Author:  Dart270 [ Tue Dec 15, 2020 3:50 am ]
Post subject:  Re: Aluminum Block Cylinder Support
OK, thanks much. I will run this by my local shop(s) and see if anyone would want to tackle this. I expect they can, but it'll be summer at least before I can start on that.

Best wishes,

Lou
Author:  GregCon [ Tue Dec 15, 2020 5:47 am ]
Post subject:  Re: Aluminum Block Cylinder Support
Although it's heresy, I gotta mention that the advantage of a V6 becomes apparent right about now. The ability to achieve good bore spacing becomes much, much more friendly when the cylinders are staggered. With an inline configuration, you pay dearly for every bit of centerline increase. Anything you do to one cylinder bumps right into the next.
Author:  casedawg [ Wed Jun 16, 2021 11:27 pm ]
Post subject:  Re: Aluminum Block Cylinder Support
Josh,

I've been running down this same rabbit hole for the past week after looking into what it would take to make a billet block and not wanting to machine external water jackets. There are Subaru, Nissan, and Ford Coyote, etc pistons in the 3.640 range. I can't remember which one now, but there is one that you would only have to deck the block 0.2-300 to use the 7.005 198 rods. I think the wrist pin bore is 0.905 instead of 0.901 on the EJ20 pistons so the rods could probably be lapped to size.

I've been looking into the off the shelf Darton and Powerbore sleeves to see which one would be the best to whittle on. I could do all the machining to a generic sleeve. It would be nice to just do the slip fit sleeves like the LT5 engine. They are just installed with a band of adhesive to seal. I don't have an empty block to take measurements from for how long the sleeves need to be. Cutting the o-ring grooves on the bottom of the sleeve would also be easy to match the Darton Mid style sleeves.

If we committed to a custom rod or piston, the bore size really could be optimized. Does anyone know what happened to that Hotrods build with the aluminum rods that made 320HP? Did they hold up?

And yes, I'll finish my CD009 swap before I dive into an engine ;) unless I get to experiment on someone else's before mine! I just have to find the Saturday to fab a rear transmission mount and everything will be in place to start buttoning up the tunnel.
Author:  Dart270 [ Thu Jun 17, 2021 5:52 am ]
Post subject:  Re: Aluminum Block Cylinder Support
Good to hear from you, Casedawg. Hope all is well on with your family. Ambitious projects...

I am pretty sure Brian Droschak in Pittsburgh has that Hotrod motor running in the '67 Dart he bought from Romeo Furio maybe 10 yrs ago. He/it won a race in MD recently! High 12s on race gas and with carb. Don't think he has been into the motor at all.

If you get around to the 6 spd parts making, I'm still in and am happy to pay fair prices (incl of course for your work and time).

Lou
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