Plastic/composite mock up case/block

[Dubveedub]

I’m building a vw powered ural motorcycle. I drooled over enough Van Dutch and the old yahoo group for years and I’ve finally decided to get started. I have a clean title 2006 ural mostly complete minus an engine. I’ve toyed with the idea of diesel engines, but I really just want to not deal with heavy slow/limited rpm engines or spend a small fortune. My first car was a 67 cabrio and I’ve had that bug urge ever since.

I have ural, dnepr, bmw, and moto guzzi transmissions to choose from but I need a mock up engine to start figuring out dimensions and how much I need to stretch the frame. I could just pickup/order a universal engine case, but wanted something lightweight for mockups.

I’ve borrowed, bought, and even built (wood&angle stock) blocks and/or cases before, but was hoping someone made a plastic/foam/composite case for this purpose.

Nothing fancy, just 1776 dual port, no fan so going mini alternative serpentine and crank trigger ignition, probably a low profile side draft carb.

Does anyone know of a company that makes such ?

[Kafer_Mike]

I've never seen a production plastic/foam mockup Type 1 case or engine. Probably too little demand to justify building molds to produce them in quantity. If you have a donor or loaner engine, use that for mockup. Or you could have it 3D scanned and have one CNC milled out of foam core.

[Piledriver]

Mag cases are light enough, I'm sure someone out there has a dead one... approximate location?

Last time I bought a T4 case shipping was ~$35 bucks. They are a bit heavier than a t1.
(probably more $$ now but still wouldnt be brutal)

[Dubveedub]

South Carolina . You bring up a good point. Perhaps a dead case is what I need. T4 or oxyboxer would be a bit too big as I think both would be wider and taller. Thinking shallow built in sump /dry sump and external cooler on the t1 case would give the shortest vertical dimension and I would not have to spread the lower frame tubes to accommodate a low dangling sump.

[Piledriver]

If you actually need to narrow the sump, a WBX or t4 may be a better choice as they are aluminum, and a wholebunch easier to weld.

[Dubveedub]

Thanks for the input. I secured a used case this weekend from a vw nut. I’ll be picking it up soon.

Attached is an example of a ural with a dual port engine

IMG_1644.jpeg