Engines!

[Oliver Knuf]

Hm, I've seen the Kerscher conversion with 16-valve-heads on waterboxer-engines, hard stuff. Same is with the so called "overfly" heads from Holzapfel. He uses 911 heads, 2-valve, cutted in half and welded together, cams in heads, belt driven and powerful for a Type 4. In the late 60's and early 70's an engineer called Ludwig Apfelbeck build overcam heads and different designed heads on either the Type 1 and the Type 4. HP ranges in the 100HP per 1000cc's class. Excellent for these times. I'll try to picture some construction sheets, as far as this board accepts the picture upload system.