Cylinder head/intake venting
#21
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I actually have ground the webbing flush in that area on a couple of intakes and then drilled the intake. I usually drill from the back side because my intakes are removed.
Here is a pic of my thermostat. I do pull my inboard starboard header to change the filter. The extra 15 mins of inconvenience is worth cleaner rigging.
![](https://cimg3.ibsrv.net/gimg/www.offshoreonly.com-vbulletin/960x540/20200510_141529_resized_1c7b4469803d2017e5cd109399549bd7bdbeb425.jpg)
Here is a pic of my thermostat. I do pull my inboard starboard header to change the filter. The extra 15 mins of inconvenience is worth cleaner rigging.
![](https://cimg3.ibsrv.net/gimg/www.offshoreonly.com-vbulletin/960x540/20200510_141529_resized_1c7b4469803d2017e5cd109399549bd7bdbeb425.jpg)
#22
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Rookie, what are the max temps your seeing with 165* Thermostats? The majority of what im seeing is 200*. My bearing clearances are tight & I have really good oil pumps so I expect even if its running up there in temp to burn off any condensation, I should be safe.
That must be -10 hose?
Do you have any pics of your Dart intakes when you drilled them?
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Do you have any pics of your Dart intakes when you drilled them?
#23
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Rookie, what are the max temps your seeing with 165* Thermostats? The majority of what im seeing is 200*. My bearing clearances are tight & I have really good oil pumps so I expect even if its running up there in temp to burn off any condensation, I should be safe. ray: That must be -10 hose?
Do you have any pics of your Dart intakes when you drilled them?
Do you have any pics of your Dart intakes when you drilled them?
Here is a pic of dash at cruise. I don't see over 180°F after the cooler.
![](https://cimg2.ibsrv.net/gimg/www.offshoreonly.com-vbulletin/822x390/oil_temp_56e3ebe1a2395284b0ec2b28c5421efb0b102254.jpg)
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NautiB (05-11-2020)
#25
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if you want to put fittings in,,just grind a flat spot and drill and tap.losing rib won't effect anything.
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NautiB (05-11-2020)
#26
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Here is a picture of how I did it. I used a Brodix HV2000 intake which had a pad for drilling and tapping. I use an IR temp gun to check temps front and back and they are within a couple of degrees. This is a crossover system with a thermostat and temps are super consistent from right to left and front to back.
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NautiB (05-11-2020)
#27
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Sutphen, That was a concern I had. I like the intakes with prevision already there. Look good, preferred angle of the fittings & more meat to work with. But, well, I already have these. lol
#28
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#29
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ThisIsLivin, Nice job, looks good! Is that -8 hose & fittings there? Im under the impression -4 is optimum but your temp consistencies are real good. Love the black headers by the way.