well, I have the opportunity to purchase a very low time but 34 year old (1982) revmaster 2180 for $2500. It has enlarged valve size for 75hp rating
so I contacted joe at revmaster to see whats changed on the newest ones vs this one, and he described the bottom ends as very similar, same alloy E4340 in the crank. the journal sizes differ #3 bearing old 55mm new 60mm con rod jurnals old 55mm new 50mm the new heads are updates to automotive style plugs, and cost $990 complete if I choose to make that update, and "If you elect to change the cylinder heads you will also have to modify the Bendix ignition harness to convert it over to automotive version. We charge $300.00 for this process." I'm totally uneducated on VW options other than scanning past posts, revmaster has a very good and maybe the best quality reputation. the price certainly seems right if everything was stored properly and in good shape. also, revmaster suggested that if I eventually add a turbo (a goal of mine) that the newer heads would be preferable "The engine can be turbocharged, however I recommend that the cylinder heads be replaced with the newer design. The newer heads are made of superior alloy and have much larger intake and exhaust valves made of stainless steel." so I am looking for thoughts on this purchase. If my jabiru 2200 sells, I would use the funds for this engine.
