Search:

There's a video on YouTube from, I think, Engine Masters where they spent a day changing fans on a dyno mounted built SBC and it was surprising how much horsepower was lost by some of the fans. The...

Not on a 604 but we tried the Jones 17" 3 blade on a low h.p. sportsman engine in the shop and couldn't keep the thing cool at a high idle speed. Every other fan we tried, some stock & some high...