[John Rogers]

This morning I talked to the mechanic that built the type four engines I used for years, before switching to a six and he also did the engines in the same car since 1980, way before I bought it. Anyways, he did not like the cooling setup like you have mainly due to the design of the pulley which acts like a long lever that is constantly trying to work loose. The fan and sheet metal are great but getting the power up there is hard work. He only used the 911 style since the crank pulley was the same as a stock one and also made of steel. Yours looks like aluminum which is really going to flex and move around?

I also asked about drilling the crank for extra pins as they sold their jig years ago but he said a competent race machine shop should be able to do it?