I have an exploded 1.7 engine. Lost a rod bolt and merged a rod with a cylinder and knocked a huge hole in the case. It was supposedly built for racing. Not sure if the crank is stock or not but bore is 90mm. At least two of the pistons/cylinders seem ok. The pictured piston (new) also came with the engine and matches the other pistons. Name "Venolia" is cast in bottom of piston along with "343" and "Alcoa" (I think I understand that label). Any ideas what I have besides scrap metal?

Venolia was a reputable maker of small production runs of high-quality racing pistons. (I haven't heard anything about them in recent years.) You've got yourself some pop-top cast (most likely) racing pistons. Probably result in a rather high compression ratio, from the looks of 'em.

--DD

MMmm, those are nice!!
Whatca gonna do with 'em?
Geoff

Yep Venolia is or was a manufacturer of some pretty nice pistons. I had a set in my first 911 rebuild.

Havent heard of Venolia for over 10 years, what about Arias?

No personal experience. Hope this helps.

http://www.venolia.com/imports.html#Porsche

kim.

I would think that the engine was built for an air-cooled Super-vee.