SoCal Jet Boats
Tech Talk => Projects => Topic started by: Crusadertwinturbo74 on August 03, 2018, 09:17:33 AM
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New to site :)
I've had one of my boats for 33 years that one is a 1973 Rally Sport BBC 454 great ride. Just got this one about 6 months ago. I'm in the process of building a 1974 Crusader 508 BBC twin turbo. My question is I have a couple of the Harman water cooled exhaust manifolds that have the cooling at the top. They are in great shape. The question I have is I pulled the cooling inlet off the front of the manifold that runs along the exhaust ports and looked inside. I expected to see the water jacket run all the way down to the last cylinder port but it doesn't ? it take a turn downward. So just was wondering if anyone may knew how the water path in the manifold runs. I'll post pictures later when I figure out how to upload them they all seam to be either sideways or half pictures ? thanks.