Stud girdle/Hardin valve covers
03-16-2021 | 07:43 PM
#21
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Joined: Aug 2002
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From: jenison mi
i have K.E. spring o.ilers and use those hardin valve covers. they clear the girdles no problem.
if you are going to use the spring oilers i suggest putting pop off inline valves on the lines before the oilers. mine are adjustable and i set them to open at 35 psi. without them at idle they bled off too much oil and lowered my pressure too much
if you are going to use the spring oilers i suggest putting pop off inline valves on the lines before the oilers. mine are adjustable and i set them to open at 35 psi. without them at idle they bled off too much oil and lowered my pressure too much
03-16-2021 | 09:11 PM
#23
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Joined: Mar 2014
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From: fort myers fla
Question is (clearance) i currently have crane rockers and was going to install girdles. Probably make a difference what manufacturer of girdle. I will be installing spring oilers also so maybe an additional 3/8". Pretty sure I'm going the yella terra route but just in case. Wanna beat Rookie to the trial. Lol... Just an FYI after talking to several HP techs over the last few weeks every single one spoke very highly of the yella terras and not a single complaint or failure they new of at least with their customers. Trying to find a good working number for them.
03-17-2021 | 04:40 AM
#24
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From: yorkville,il
imo anything you an do to stabilize the valve train is a plus,in a marine endurance engine that sees high rpm,s for a long time it is going to extend the life of the valve springs.it,s amazing how much the rocker studs move on a bbc running at 5000 rpm and above.also,believe it or not they also create better valve sealing.
03-17-2021 | 09:25 AM
#25
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Joined: Feb 2009
Posts: 8,356
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From: NW Michigan
i have K.E. spring o.ilers and use those hardin valve covers. they clear the girdles no problem.
if you are going to use the spring oilers i suggest putting pop off inline valves on the lines before the oilers. mine are adjustable and i set them to open at 35 psi. without them at idle they bled off too much oil and lowered my pressure too much
if you are going to use the spring oilers i suggest putting pop off inline valves on the lines before the oilers. mine are adjustable and i set them to open at 35 psi. without them at idle they bled off too much oil and lowered my pressure too much
I purchased the KE’s as well. Also good advice however can you post a pic.
03-17-2021 | 10:20 AM
#26
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Joined: Aug 2002
Posts: 1,256
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From: jenison mi
hylok cva-m4n-a is a stainless valve that is adjustable. used air pressure to set the screw in the valve to open them at 35 psi. they are screwed in the block oil passage on the side of the block up front by the timing cover.
i used one per engine and split the oil lines to each valve cover.
its one of those things i never would have know existed.
i used one per engine and split the oil lines to each valve cover.
its one of those things i never would have know existed.
03-17-2021 | 10:57 AM
#29
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From: Cheboygan, MI
I also make sure my boat insurance is paid on time. I found the guy that makes them for AFR, Dart, Howards etc. He literally had heads from all of them to check the fit. I have AFR heads and the Hardin valve covers as well, no problems.
