Why not???

The headers sweep forward into the area where a centrifugal blower is usually mounted in front of the one valve cover. Same problem with any header that does this before curving back towards the transom.

I am very familiar with the KE cast headers that were purchased from Innovation Marine. These are the same that were used on the Volvo Penta High Horsepower engines when they were available. I was the VP of Engineering at the time.

They were chosen after much dyno testing to validate their output and value. You can buy a bit more HP with other brands but your $'s per incremental HP gain goes off the chart.

The only caution I would have is that if you ever loose a raw water impeller and have even a minor overheat, I would pressure check the headers for leaks internally. the cast aluminum is not as durable potentially as other manufacturing methods.

A water injested engine is an expensive fix!

Helmpilot - good stuff. Innovation did recommend I install a water pressure gage to prevent just what you said. I also run closed cooling (like the volvo 600s) and am at risk of not knowing about a lack of flow immediately. While I was there Innovation was dyno-ing a 600 with these headers. Sounded great. They also had a row of these engines sitting on the floor brand new, complete and ready for sale. Very nice package.

Just curious Helmpilot, where were you the VP, Innovation or Volvo?

Dave