3 Liter VW engine

[Brett Proctor]

Deano Dyno-Soar VW Engine Cases​

Deano Dyno-Soar (DDS) is famous for developing the “Ultra Case” — an aftermarket crankcase designed to accommodate up to 3‑liter VW engines in the rear engine compartment, a major innovation in VW drag racing.

Historical Background​

Deano Dyno-Soar was founded by brothers Dean and Ken Lowry in Santa Ana, California, in 1968. They became renowned for building and racing high‑performance VWs, including the legendary Inch Pincher. One of their most notable engineering contributions was the Ultra Case, which allowed larger displacement VW engines to fit into the tight space of the rear engine bay all-kinds-automotive.blogspot.com+1.

The Ultra Case​

• Purpose: To house up to 3‑liter VW engines in the rear engine compartment, a significant improvement over stock or early aftermarket cases.
• Impact: Enabled more powerful engines without major chassis modifications, helping DDS win numerous NHRA H/Gas class races.
• Design: Custom‑fit crankcases with reinforced construction to handle the increased engine size and performance demands.

 

[letterman7]

Yep. Type 4 blocks can be built out pretty stoutly. Jake Raby and Pauter Engineering pioneered some very high horsepower air cooled stuff and still do, if your pockets are deep enough.